Lists 1-27 Combined
Edited by Michael J. Havey
USDA/ARS, Department of Horticulture
University of Wisconsin
Madison, WI 53706
Mackenzie (XP 07715682) – Breeder and vendor: Seminis. Parentage: Hybrid. Characteristics: long day yellow hybrid onion; early maturing; storage type; uniform size; high globe shape; good color; bolt tolerant; very firm with tight necks; suited for long term storage; diameter about 7 cm; weight 180–200 g per bulb. Similar: Frontier. Resistance: Fusarium basal rot (FBR). Adaptation: NAFTA – Northeast U.S. 2005.
Mackinaw – Breeder and vendor: Dakota. Characteristics: hard storage, long day yellow. Resistance: tolerance to pink root, fusarium. Similar: Daragon. 1993.
Madero (SO 1420) – Breeder: Rick Watson. Vendor: Sunseeds. Parentage: F1 hybrid. Characteristics: intermediate type yellow, produces large sized globe to somewhat top-shaped bulbs; high percentage of single centered bulbs when well grown. Resistance: pink root. Similar: Cimerron. Adaptation: intermediate and Sweet Spanish onion growing areas. 2000.
Madrid (AX 2246) – Breeder: K.McLellan. Vendor: Aristogenes. Characteristics: outstanding vigor and yielding ability. Resistance: pink root. Similar: Vega. 1994.
Maestro (XPH 7022) – Breeder and vendor: Asgrow. Characteristics: overwintering, yellow skinned type, early maturity. Similar: Keepwell, Yellowstone. 1987.
Magnifico Hybrid – Breeder: Crookham Company, Caldwell, Idaho. Parentage: a long day limited on short storage type. Characteristics: exceptional bulb uniformity, high yielding ability and mild flavor; performs well from direct seeding or transplant. Adaptation: areas where Yellow Sweet Spanish populations are grown. 1953.
Magnum (77-924) – Breeder and vendor: Dessert Seed Co. Characteristics: F1 hybrid, extra large early Spanish type onion: excellent storage. Resistance: unknown. Similar: Fiesta. Adaptation: Spanish growing areas. 1979.
Majestic (AX 1507) – Breeder: K.McLellan. Vendor: Aristogenes. Characteristics: consistent, very heavy yielder of extra large, Spanish type bulbs with uniformity, excellent keeping ability; light colored skins. Resistance: strong to pink root. 1992.
Majesty – Breeder and vendor: ARCO/Dessert. Resistance: pink root. 1964.
Mambo (Sunex1488) – Breeder: R.Watson. Vendor: Sunseeds. Characteristics: dark red color extends to center of bulb when well cured, large bulb size. Similar: Tango. 1992.
Mammoth (SSC1497) – Breeder and vendor: Shamrock. Characteristics: a medium-late maturity, intermediate day onion, very large, highly single-centered bulbs that are brown colored. Similar: Maya. 1992.
Marathon (HMX 2621) – Breeder and vendor: Harris Moran. 1989.
Maricopa – Breeder and vendor: Golden Valley. Characteristics: yellow Spanish hybrid, better storability. 1991.
Maritime (XPH3326) – Breeder: S.Hendricks. Vendor: Asgrow. Characteristics: high yield, trim necks, high percentage of colossal bulbs. Similar: Vega, Cache. 1994.
Mars (PSX80888) – Breeder: R.Engle. Vendor: Petoseed. Characteristics: long day type, bright red globe, white flesh, large medium jumbos. 1991.
Marvel (Sunex1486) – Breeder: R.Watson. Vendor: Sunseeds. Characteristics: early maturity, vigorous growth, large bulb size. 1992.
Matador (NCX 103) – Breeder and vendor: FMC Corp. Parentage: F1 hybrid, male P74-9-32 from Utah, female is proprietary. Characteristics: deep globe, golden brown, tight sealed bulbs with fine necks, medium size (2″ in diameter) with intermediate storage properties. Similar: Downing Yellow Globe. Adaptation: muck soils of New York, Michigan, Wisconsin, and Canada. 1976.
Maya (XPH 739) – Breeder and vendor: Asgrow Seed Co. Characteristics: F1 hybrid, midseason, jumbo, long-day Spanish hybrid, with excellent storage potential. Similar: Vega. Adaptation: northwestern United States (Idaho, Oregon, and Washington), Colorado, central California, and northern Texas. 1985.
Mercedes (PS2789) – Breeder: A.Burkett. Vendor: Petoseed. Characteristics: short day hybrid, yellow, good scales, early, good storage, firm, small necks. Resistance: pink root. 1994.
Mercury – Breeder: R.Engle. Vendor: Petoseed. Characteristics: eastern U.S., long day, red type. 1993.
Mesa – Breeder and vendor: Dakota. Characteristics: hybrid yielding, overwintering. Resistance: pink root. 1994.
Michigan Sweet Spanish – Breeder: Michigan State College, East Lansing. Vendor: Ferry-Morse Seed Co. Parentage: selection from Valencia Sweet Spanish, imported seed. Characteristics: very good skin and color, very good keeper. Similar: Globe. Adaptation: dry muck; midwestern United States. 1945.
Midstar (ARCO 1607) – Breeder and vendor: ARCO Seed Co. Characteristics: F1 hybrid, vigorous, uniform, white onion with high frequency of single-centered bulbs; intermediate day length response; limited storage potential. Resistance: tolerance to pink root. Similar: New Mexico Grano. Adaptation: northern Texas, New Mexico, and the San Joaquin Valley of California. 1986.
Milestone – Breeder and vendor: American Takii, Inc. Characteristics: early maturing (105–110 days), long-day variety; large, hard, yellow Spanish-type with high percentage of single centers; uniform shape with nice brown skin color and thin necks. Adaptation: fresh, processing, and export markets. 2005.
Millennium (SXO 1434) – Breeder: R. Watson. Vendor: Sunseeds. Parentage: F1 hybrid. Resistance: Pink root and Fusarium. Similar: Paragon. Adaptation: long day. 1997.
Mira (XP 15040) – Breeder and vendor: Seminis-Asgrow. Parentage: F1 hybrid. Resistance: Pink root and Fusarium. Similar: Bullreg XXX. Adaptation: Idaho, Colorado, Washington, Utah.
Mohawk (D1011) – Breeder and vendor: Joseph Harris Co. Characteristics: F1 hybrid, early yellow, dark colored and high yielding; short storage. Similar: Abundance. Adaptation: northern long-day areas.
Mohegan – Breeder and vendor: Dakota. Characteristics: early maturing, northern U.S., storage onion. Resistance: pink root, fusarium. Similar: Valient. 1992.
Mojave – Breeder and vendor: Dakota. Characteristics: midseason, high yielding, white sweet Spanish. Resistance: pink root. Similar: Sterling. 1992.
Monarch (SSC-2246) – Breeder and vendor: Shamrock. Characteristics: late maturing, intermediate day, large, globe-shaped, dark brown bulbs. Similar: Maya. 1991.
Monarchos (XP 07715843) – Breeder and vendor: Seminis. Parentage: hybrid. Characteristics: hybrid yellow long day onion with bronze skin and high single centers; mid-season maturity (120 days), good scale cover for mechanical harvest; bolt tolerant; high percentage of single centers; average field yield; good size grading. Similar: Ranchero, Santa Fe. Resistance: Fusarium basal rot. Adaptation: NAFTA – Northwest. 2005.
Montana (XP 8417) – Breeder and vendor: Seminis-Asgrow. Parentage: F1 hybrid. Similar: Criola. Adaptation: southern Brazil.
Moonshine – Breeder and vendor: Dakota. Characteristics: overwintering white type. Resistance: pink root. Similar: Midstar. 1993.
Mr. Buck – Breeder and vendor: D. Palmer Seed, Co., Inc. Characteristics: sweet Vidalia type; this hybrid onion has a deep, flat shape with wide rings; matures in late mid-season and produces a high percentage of jumbo sizes. 2002.
Mucker (DEXP 729) – Breeder and vendor: Dessert Seed Co. Characteristics: hybrid, long storage, high yield and high globe. Similar: Spartan Banner. Adaptation: northern and central mucks. 1974.
Mustang (D1910) – Breeder: Joseph Harris Co. Characteristics: F1 hybrid, yellow, hard, good storage. Similar: Downing Yellow Globe. Adaptation: northern long-day onion areas. 1965.
Navaho – Breeder and vendor: Golden Valley. Characteristics: yellow Spanish type. Resistance: tolerance to pink root, fusarium. 1991.
Nebula – Breeder and vendor: Stokes Seeds, Inc. Characteristics: large uniform dark-brown, globe-shape bulb that provides excep-tional high quality pack; medium-long; this variety has 6- to 8-month storage possibilities and is well suited for mechanical harvesting; plants have outstanding vigor and strong root system. Resistance: tolerant to Fusarium and pink rot. 2005.
Neetco Nugget (B and K Expt. Hyb. number 1]) – Breeder and vendor: B and K Prepack. Characteristics: F1 hybrid, Yellow Globe type, medium brown, heavy scaled, uniform shape, excellent storage life, good ringability. Similar: Danvers Yellow Globe. Adaptation: areas where long-day storage type onions are grown. 1972.
New Mexico Early Grano – Breeder: New Mexico State Expt. Stn. Characteristics: derived from Balbosa. 1930.
Ninja (MR7600) – Breeder and vendor: Rispens. Characteristics: 114 day maturity, good scale retention for mechanical harvest. Resistance: pink root, fusarium. Similar: Voyager. 1992.
Nitro – Breeder and vendor: Rispens. Characteristics: excellent long-term storage, derived from cross of hard by hard bulb, high yields. Resistance: pink root, fusarium. Similar: Fortress, Duration. 1994.
Nora Fronteira (XP 6803) – Breeder: David Dean. Vendor: Seminis-Asgrow. Parentage: F1 hybrid. Characteristics: medium yellow, globe shaped, medium size, waxy foliage, pungent, not for jumbo production. Similar: Serrano. Adaptation: Brazil. 2000.
Norseman – Breeder and vendor: Stokes. Characteristics: longer storage, better skin retention than Norstar. Resistance: field tolerance to pink root. 1991.
Norstar – Breeder and vendor: Takii. Characteristics: early maturity, yellow type, for cool weather production. Resistance: tolerance to botrytis, downy mildew, soft rot, basal rot. 1988.
North Star (FMX 220W1) – Breeder: K.McLellan. Vendor: Ferry-Morse. Characteristics: early midseason, good yielding, long storage type, hard flesh, heavy skins, small necks, medium bronze with high gloss. Resistance: fusarium basal rot. Similar: Fusario hybrids. 1983.
Northern Oak – Breeder and vendor: Stokes. 1988.
Nova – Breeder: L.Kyle. Vendor: Neuman. Characteristics: early maturity, flat yellow bulbs, Granex type. Resistance: bolting, pink root. 1988.
Nugget – Breeder: University of Wisconsin, Madison, in cooperation with USDA and Iowa Agric. Expt. Sta., Ames. Vendor: Jung Seed Co. Parentage: Iowa 736A x Wisconsin 101B. Characteristics: F1 hybrid, early maturity, long storage; bulb firm, globe shaped, bronze color, good scale retention. Similar: Autumn Spice and Epoch. Adaptation: Wisconsin. W.H. Gabelman, Sept. 1962.
Number 6404 – Breeder and vendor: Takii. Characteristics: long day storage type. Resistance: tolerance to fusarium basal rot, bacterial leaf spot. Adaptation: western U.S. 1991.
Number 8911 – Breeder and vendor: Takii. Characteristics: long day storage type. Resistance: tolerance to fusarium basal rot, pink root, bacterial leaf spot. Adaptation: western U.S. 1991.
NuMex Bolo – Breeder: J.Corgan. Vendor: New Mexico State Expt. Stn. Characteristics: yellow intermediate day onion, high yield, firm bulbs. Resistance: excellent to pink root. 1994.
NuMex BR1 – Breeder: J.Corgan. Vendor: New Mexico State Expt. Stn. Parentage: selected from Texas Early Grano 502 PRR. Characteristics: yellow short day onion, high yield, excellent bolting resistance. 1983.
NuMex Casper – Breeder: J.Corgan. Vendor: New Mexico State Expt. Stn. Characteristics: white intermediate day onion, excellent scale color. Resistance: pink root. 1992.
NuMex Centric – Breeder: J.Corgan. Vendor: New Mexico State Expt. Stn. Characteristics: yellow early long day onion, sweet spanish type, high yield, high percentage of single centers. Resistance: excellent to pink root. 1995.
NuMex Crispy – Breeder: J.Corgan. Vendor: New Mexico State Expt. Stn. Parentage: from Temprana x Yellow Granex. Characteristics: white short day onion, low pungency, excellent scale color. Resistance: excellent to pink root. 1995.
NuMex Dulce – Breeder: J.Corgan. Vendor: New Mexico State Expt. Stn. Parentage: from NuMex Starlite. Characteristics: yellow short day onion, low pungency. Resistance: excellent to pink root. 1995.
NuMex Jose Fernandez – Breeder: J.Corgan. Vendor: New Mexico State Expt. Stn. Characteristics: yellow intermediate day onion, high yield. Resistance: excellent to pink root. 1994.
NuMex Luna – Breeder: J.Corgan. Vendor: New Mexico State Expt. Stn. Characteristics: yellow intermediate day onion, high yield, firm bulbs. Resistance: pink root. 1995.
NuMex Mesa – Breeder: J.Corgan. Vendor: New Mexico State Expt. Stn. Parentage: from NuMex BR1 x Buffalo. Characteristics: yellow short day onion, nice scale, firm bulbs, excellent bolting resistance. Resistance: excellent to pink root. 1995.
NuMex Starlite – Breeder: J.Corgan. Vendor: New Mexico State Expt. Stn. Parentage: from Texas Grano 502 PRR. Characteristics: yellow short day onion, high yield, large bulbs, low pungency, good bolting resistance. Resistance: excellent to pink root. 1990.
NuMex Sundial – Breeder: J.Corgan. Vendor: New Mexico State Expt. Stn. Parentage: selected from Ben Shemen. Characteristics: yellow intermediate day onion, high yield, hard bulb. Resistance: excellent to pink root. 1987.
NuMex Sunlite – Breeder: J.Corgan. Vendor: New Mexico State Expt. Stn. Parentage: selected from Texas Early Grano 502 PRR. Characteristics: yellow short day onion, high yield, uniform size and shape, excellent bolting resistance. Resistance: excellent to pink root. 1987.
NuMex Suntop – Breeder: J.Corgan. Vendor: New Mexico State Expt. Stn. Parentage: selected from Ben Shemen. Characteristics: yellow intermediate day onion, high yield, hard bulb. Resistance: excellent to pink root. 1987.
NuMex Sweetpak – Breeder: J.Corgan. Vendor: New Mexico State Expt. Stn. Characteristics: yellow short day onion, early maturing grano type, low pungency. Resistance: excellent to pink root. 1997.
NuMex Vado – Breeder: J.Corgan. Vendor: New Mexico State Expt. Stn. Characteristics: yellow short day onion, high yield, firm bulbs. Resistance: pink root. 1995.
Nutmeg (D1951) – Breeder and vendor: Joseph Harris Co. Characteristics: F1 hybrid, early (100 days), long-day, hard, yellow onion, medium size, deep globe, small neck, good skin color, for long storage. Resistance: tolerance to fusarium basal rot. Similar: Autumn Spice. Adaptation: northern areas and Canada. 1974.
Omega – Breeder: Nickerson-Zwaan. Vendor: Shamrock. Parentage: F1 hybrid. Characteristics: 5-10 days earlier than Brown Beauty where tested in Colorado. Resistance: pink root, tolerance to fusarium. Similar: Brown Beauty. Adaptation: California, Oregon, Idaho, Colorado, Washington. 1988.
Omni (SUNEX1505) – Breeder and vendor: Sunseeds. Characteristics: very early maturity, firm globe, white. Resistance: pink root. Similar: Rio Unico. 1995.
Ontario (XP 62) – Breeder and vendor: Asgrow Seed Co. Parentage: closed pedigree involving USDA and Asgrow inbreds. Characteristics: F1 hybrid, early maturing main season storage type. Similar: Premier. Adaptation: long-day onion areas. Asgrow’s “Your Crops-What’s New for 65,” Fall 1964.
Ontario M (XP 195) – Breeder and vendor: Asgrow Seed Co. Characteristics: F1 hybrid, medium-sized, globe-shaped hybrid for crate and field box storage from mid to late winter. Similar: Ontario. Adaptation: long-day areas in the United States, Canada, and overseas. 1976.
Orange Countess (XPH 3465) – Breeder: S.Hendricks. Vendor: Asgrow. Characteristics: full season Spanish hybrid, excellent storage. Similar: Cima. 1995.
Orizaba (XP 07715646) – Breeder and vendor: Seminis. Characteristics: long day white onion for the early season segment; good scale cover; bolt tolerant; spring planted/transplanted; late summer/ early fall harvest; grown at latitudes lower than 48L. Similar: Cometa and Blanco de Oro. Resistance: None. Adaptation: NAFTA – Mexico and Pacific Northwest. 2005.
Oro (Super Elite) – Breeder and vendor: Dessert Seed Co. Characteristics: F1 hybrid, deep globe with golden-brown scale color; refined necks and long storage capability. Similar: Elite. Adaptation: northern onion-growing areas. 1982.
Oro Grande (FMX 70W6) – Breeder: E.Wheeler. Vendor: Ferry-Morse. Characteristics: hybrid, high yield, intermediate to long day, high percentage of jumbos, bulbs globe to blocky globe, medium bronze skins, medium hard firmness, flesh is white, fairly mild, Spanish type. Similar: Vega. 1985.
Oswego – Breeder and vendor: Dakota. Characteristics: long day, yellow storage type. Resistance: pink root, fusarium. Similar: Legacy. 1993.
Ottawa – Breeder and vendor: Dakota. Characteristics: yellow storage type. Similar: Legacy. 1993.
Outrigger (XP 15067) – Breeder and vendor: Seminis-Asgrow. Parentage: F1 hybrid. Similar: Brown Baron. Adaptation: F1 hybridU.S.
Pacesetter (D 2810) – Breeder and vendor: Joseph Harris Co. Characteristics: F1 hybrid, yellow storage type; good keeper, medium size and yield. Similar: Downing Yellow Globe. Adaptation: northern long-day onion areas. 1963.
Palomino (Granny-X) – Breeder and vendor: Shamrock. Characteristics: short day, main season, yellow, flat globe. Resistance: pink root, bolting. Similar: Texas Grano 502. 1989.
Paradise PRR – Breeder and vendor: ARCO Seed Co. Characteristics: open pollinated. Resistance: pink root. Adaptation: indeterminate onion areas. PVP certificate number 8100129. 1981.
Paragon (DEXP 1317-1) – Breeder and vendor: ARCO Seed Co. Characteristics: F1 hybrid, early maturity with excellent storage quality and very hard flesh; uniform globe with medium brown scales that adhere well in storage. Similar: Downing Yellow Globe. Adaptation: northern onion-growing areas. 1986.
Pathfinder – Breeder and vendor: Rio Colorado Seeds. Characteristics: long-day onion; great storage characteristics; shiny copper skin is firm and attractive; high yielding and widely adapted. Resistance: excellent tolerance to bolting and pink root. 1998.
Paydirt (Hy. 1001) – Breeder and vendor: Northup, King and Co. Characteristics: hybrid, dark skin, maturing slightly later and longer than Copper Gem. Adaptation: long days. 1969.
Payette (PS74089) – Breeder: R.Engle. Vendor: Petoseed. Characteristics: yellow sweet Spanish type, long term storage, attractive scale color and retention, 120 day maturity. Resistance: pink root. Similar: Apex, Cima, Vega.
Payola (SSC 1001) – Breeder and vendor: Shamrock. Characteristics: short day, early maturity, large, tapered, yellow globe. Resistance: pink root, bolting. 1991.
Pedro (Hy. 126) – Breeder and vendor: Crookham Co. Characteristics: hybrid, high yielding late, good keeping, mechanical harvest; Spanish type. Resistance: tolerance to pink root. Adaptation: Spanish areas. 1968.
Pegasus (XPH6020) – Breeder: R.Jones. Vendor: Asgrow. Characteristics: hybrid, full season, Granex type, 10 days later than Granex 33, sweet mild flavor. Resistance: pink root. Similar: Granex 33. 1994.
Perez (XP 07905013) – Breeder and vendor: Seminis. Parentage: F1 hybrid. Characteristics: golden brown export type, mid-day storage type with very good storability (5 months); shape is round, tops are vigorous, uniformity is excellent. Resistance: Fusarium basal rot. Similar: Kiwi Gold. Adaptation: NAFTA – Northeast and Northwest U.S. 2005.
Perfecto Blanco – Breeder: Northrup King and Company, Minneapolis. Parentage: selection out of White Sweet Spanish. Characteristics: long slender, blue-green stem; vigorous and productive; bulbs slowly. Northrup King Desc. catalog. 1957.
Perla – Breeder: L.Pike, Texas A and M University. Characteristics: short day, white onion, round to slightly flattened globe, excellent root system, excellent shipping ability. Resistance: pink root. Similar: New Mexico White Grano. PVP. 1989.
Pilot Hybrid – Breeder: Colorado Agric. Expt. Sta., Ft. Collins. Parentage: B2264A x B1340C Inbred out of Currier Sweet Spanish (Currier Sweet Spanish is an early maturing cultivar). Characteristics: high yields, uniform grade quality; matures same date as Mountain Danvers; deep globe shaped, copper colored; excellent storage type. Resistance: Purple Blotch disease and some resistance to pink root and storage diseases. Similar: Sweet Spanish. Adaptation: 150 to 155 days between killing frosts. Colo. Agric. Expt. Sta. Circ. Number 2-S.
Pima – Breeder and vendor: Golden Valley. Characteristics: hybrid, white Spanish type. 1991.
Pinnacle (PSX62088) – Breeder: R.Engle. Vendor: Petoseed. Characteristics: long day type, globe shape, jumbo size, mild flavor, bright brown scale. 1991.
Pioneer – Breeder: USDA, Colorado Agric. Expt. Sta., Ft. Collins, and Idaho Agric. Expt. Sta., Ames. Parentage: B15-108A x B2215C Yellow Globe Danvers inbred x Brigham Yellow Globe inbred. Characteristics: F1 hybrid, small plant size, gray-green foliage; bulbs medium size, dark yellow, globe shape, pungent, very firm; late maturity, long storage. Similar: Mountain Danvers. Adaptation: Western slope of Colorado. Elmo Davis, 16 April 1962.
Polaris – Breeder and vendor: Dakota. Characteristics: intermediate day, white type. Resistance: pink root. Similar: Midstar. 1993.
Popago – Breeder and vendor: Golden Valley. Characteristics: midseason white Spanish hybrid. 1991.
Precedent (SXO 1460) – Breeder: R. Watson. Vendor: Sunseeds. Parentage: F1 hybrid. Similar: Norstar. Adaptation: long day. 1997.
Predator – Breeder and vendor: Rio Colorado. Characteristics: features adaptability, an attractive appearance, and high yield potential that have made it popular in all major growing areas; has blue green foliage and large to jumbo sized bulbs. 1998.
Premier – Breeder: USDA and Cornell University, Ithaca. Parentage: B2117A x B2215C Early Yellow Globe inbred x Brigham Yellow Globe inbred. Characteristics: F1 hybrid, plants medium large; nonglossy foliage; bulbs medium size, dark yellow, high globe, firm; late maturity, long storage. Similar: Brigham Yellow Globe. Adaptation: where Brigham Yellow Globe is grown. The F1 hybrid Onion Premier USDA release, 31 January. 1957.
Pre-Pak – Breeder and vendor: Rispens. Characteristics: long storage, very hard. Resistance: pink root, fusarium. Similar: Trapps #8. 1993.
Primavera (PS1685) – Breeder: A.Burkett. Vendor: Petoseed. Characteristics: short day hybrid yellow very early, good large Grano shaped bulb with small necks, excellent scale retention. 1989.
Prime Beauty (Experimental N) – Breeder and vendor: Ferry-Morse Seed Co. Characteristics: F1 hybrid, long, intermediate day length, hard fleshed, medium size globe with small neck and medium storage capacity; matures in season with Brown Beauty. Similar: Brown Beauty. Adaptation: areas where Brown Beauty is grown. 1976.
Primero PRR – Breeder and vendor: ARCO Seed Co. Characteristics: open pollinated. Resistance: pink root. Adaptation: short-day onion areas. 1968.
Progress (1956) – Breeder and vendor: Joseph Harris Co. Characteristics: F1 hybrid, early short storage, dark scales. Adaptation: northeastern organic soils. 1980.
Pronto (XP H621) – Breeder and vendor: Asgrow Seed Co. Parentage: closed pedigree involving USDA and Asgrow inbreds. Characteristics: F1 hybrid, a medium day cultivar for field seeding in place of sets. Similar: Early Harvest. Adaptation: northern medium and long-day onion areas. 1964.
Pronto S (X 196) – Breeder and vendor: Asgrow Seed Co. Parentage: closed pedigree USDA and Asgrow inbreds. Characteristics: F1 hybrid, early nonstorage type, primarily for market. Resistance: tolerant to pink root. Similar: Pronto. Adaptation: long-day areas. Asgrow’s “Your Crops” Dec. 1967.
Prospector (586) – Breeder and vendor: Agway. Characteristics: hybrid, high yields on muck, moderate storage. Resistance: pink root. Similar: Autumn Spice. Adaptation: northeastern United States. Agway Catalog, 1970.
Pueblo – Breeder and vendor: Dakota. Characteristics: yellow, long day, hard storage type. Resistance: pink root, fusarium. Similar: Legacy. 1993.
Puma – Breeder and vendor: Golden Valley. Characteristics: early maturity, yellow hybrid, Spanish type. 1991.
Quantum Tioga (PS 663395) – Breeder: R. Maxwell. Vendor: Seminis-Petoseed. Parentage: F1 hybrid. Adaptation: long day. 1996.
Quest (PS760) – Breeder: R.Engle. Vendor: Petoseed. Characteristics: fresh market or processor type large yellow, globe shaped, main season maturity, excellent ringing quality, large sizes, high percentage single centers. Resistance: pink root. Similar: Valdez, Oro Grande.
R.K.W. – Breeder and vendor: Dessert Seed Company, El Centro, California. Parentage: out of Excel 986. Characteristics: deeper white onion than L 303, makes large deep flat onion. Similar: L303. 1952.
RAM-735 – Breeder: H. Rabinowitch and A. Harazy. Vendor: Hazera. Parentage: F1 hybrid.
RAM-763 – Breeder: H. Rabinowitch and A. Harazy. Vendor: Hazera. Parentage: F1 hybrid.
RAM-781 – Breeder: H. Rabinowitch and A. Harazy. Vendor: Hazera. Parentage: F1 hybrid.
Rampart (XP 77015) – Breeder and vendor: Seminis-Asgrow. Parentage: F1 hybrid. Characteristics: midseason storage minimum, approximately 110 days. Similar: Fortress. Adaptation: Quebec, Ontario, New York, Michigan, Wisconsin. 2000
Ranchero (SXO 1430) – Breeder: Rick Watson. Vendor: Sunseeds. Parentage: F1 hybrid. Characteristics: yellow Spanish type, very large bulb size, high percentage of single centered bulbs. Resistance: high tolerance to pink root and fusarium basal rot. Similar: Yellow Spanish Sweet. Adaptation: Sweet Spanish growing areas. 2000.
Red 21 – Breeder and vendor: California State Expt. Stn. Characteristics: same as California Early Red UC Number 1. 1943.
Red Bandana (HMX2326) – Breeder and vendor: Harris Moran. Characteristics: short day type, red in color, early maturity, jumbo size, globe shaped bulbs. Resistance: pink root. 1992.
Red Bluff – Breeder and vendor: Dakota. Characteristics: intermediate day, red type. Resistance: pink root. 1993.
Red Burgermaster (PSX163537) – Breeder: R.Engle. Vendor: Petoseed. Characteristics: bright red, globe shape, large to jumbo sizes, attractive red and white flesh, good storage, good scales. Similar: Mars. 1994.
Red Caribe (113-203) – Breeder and vendor: Seminis-Petoseed. Parentage: open pollinated. Similar: Red Creole. Adaptation: Central America.
Red Comet PRR (Z303PRR) – Breeder: L.Kyle. Vendor: Neuman. Characteristics: hybrid, early maturity, flattened bulb, red short day type. Resistance: pink root, bolting, greening. 1989.
Red Commander PRR – Breeder and vendor: ARCO Seed Co. Parentage: F1 hybrid. Resistance: pink root. Adaptation: short-day onion areas. 1971.
Red Creole – Breeder and vendor: Dessert Seed Company, El Centro, California. Characteristics: F1 hybrid, bulbs high flat; red in color and pungent; outyields Red Creole by about 50%, but matures a few days later; stores 6 to 7 months. Resistance: purple blotch. Similar: Red Creole. Adaptation: short day regions and same areas as Red Creole. Dessert 8 June 1962.
Red Cross – Breeder and vendor: Takii. Characteristics: overwintering red onion. Resistance: tolerance to botrytis, downy mildew. 1988.
Red Delicious – Breeder and vendor: Burpee. Characteristics: globe shaped, milder flavor than smaller red globe types, long day onion, good for spring planted crop in most of the United States.
Red Delite (Crk W156) – Breeder: W.McDonald. Vendor: Crookham. Characteristics: hybrid, large sized bulb with uniform dark red interior and exterior color, bulbs uniform, globe shape, very high percentage single centers. Resistance: tolerance to pink root. Similar: Southport Red Globe. 1982.
Red Granex – Breeder and vendor: Dessert Seed Company, El Centro, California. Characteristics: F1 hybrid, bulbs large, dark red, mild, high flat in shape; excellent yield, matures at about the same time as Granex or a few days later. Resistance: some to purple blotch. Adaptation: short-day areas, the southern United States, and where Granex is grown. Dessert 1 June 1962.
Red Harvest (180RA) – Breeder and vendor: Dessert Seed Co. Characteristics: F1 hybrid, early long-day x short-day cross. Resistance: unknown. Similar: Early Harvest. Adaptation: wide. 1981.
Red Rider – Breeder and vendor: Rispen Seeds, Inc. Parentage: F1 hybrid. Characteristics: extraordinary dark with dark red exterior and interior color. Resistance: pink root. Similar: Red Wing. Adaptation: northwest and midwest U.S. 2000.
Red Star (PS1067) – Breeder: A.Burkett. Vendor: Petoseed. Characteristics: early Creole type, red. Similar: Red Creole, Red Pinoy. Resistance: pink root. 1994.
Red Zeppelin (XP 15300) – Breeder: Omar Diaz. Vendor: Seminis-Asgrow. Parentage: F1 hybrid Characteristics: deep red color, Tango maturity, uniform globe to tall globe shape, large size with long storage potential mid-season maturity. Adaptation: northeast U.S. 2000.
Redbird (4414) – Breeder: Robert L. Jones. Vendor: Ag Chem Services. Parentage: F1 hybrid. Adaptation: south Texas, northern Mexico.
Redbone (XP6013) – Breeder: R.Jones. Vendor: Asgrow. Characteristics: thick, flat, short day, red type, good color both interior and exterior, high percentage of single centers, good bolting resistance. Resistance: pink root. Similar: Ruby. PVP. 1990.
Redkeep (XP 7519022) – Breeder: David Dean. Vendor: Seminis-Asgrow. Parentage: F1 hybrid. Characteristics: red globe shape, hard storage onion, can be stored 4-6 months, dark red scales. Resistance: fusarium basal rot. Similar: Tango. Adaptation: New Zealand, Australia, South Africa. 2000.
Redman – Breeder: E.Wheeler. Vendor: Ferry-Morse. Characteristics: red, open pollinated population with good storage. 1985.
Redron (Flat Red) – Breeder and vendor: Dessert Seed Co. Characteristics: F1 hybrid, long day, semi flat, dark red; vigorous. Resistance: unknown. Similar: Red Wethersfield. Adaptation: long-day onion areas only. 1981.
Redwing – Breeder and vendor: Bejo Seeds. Characteristics: dark red long-day storage onion with thick skin; very hard onion; has good color throughout and produces large globes up to 3 1/2 inches. 1998.
Regal PRR – Breeder and vendor: ARCO Seed Co. Characteristics: open pollinated, early with excellent color. Resistance: pink root. Adaptation: short-day onion areas. PVP certificate number 8100130. 1980.
Regiment (XPH3804) – Breeder: S.Hendricks. Vendor: Asgrow. Characteristics: midseason hybrid Spanish type. Resistance: pink root, bolting, fusarium. Similar: Vega. 1994.
Reina Blanca PRR (Z506PRR) – Breeder: L.Kyle. Vendor: Neuman. Characteristics: hybrid, white, short day type. Resistance: pink root, bolting, greening. 1989.
Reina Roja (4416) – Breeder: Robert L. Jones. Vendor: Ag Chem Services. Parentage: F1 hybrid. Adaptation: south Texas and northern Mexico.
Renegade – Breeder and vendor: Dakota. Characteristics: yellow short day; not the same as Renegade from Rispens (1994). Resistance: pink root. Similar: Texas Early Grano. 1993.
Renegade – Breeder and vendor: Rispens. Characteristics: 115 day, Spanish by eastern, good size with very good storage and yield; not the same as Renegade from Dakota (1993). Resistance: tolerance to pink root, fusarium. Similar: Valiant. 1994.
Revere (XPH 92376) – Breeder and vendor: Crookham. Parentage: (PG-1xXP53-350)x Crookham inbred. Resistance: Pink root. Similar: Sweet Perfection. Adaptation: northwest U.S.
Rialto (XP73) – Breeder and vendor: Asgrow Seed Co. Characteristics: F1 hybrid, large bulbed for prompt shipment and medium storage. Resistance: pink root. Similar: Pronto S. Adaptation: wide. 1976.
Ricochet (XP 77022) – Breeder: Omar Diaz. Vendor: Seminis-Asgrow. Parentage: F1 hybrid. Characteristics: early, non-storage, approximately 90 days, globe shaped. Resistance: Fusarium basal rot, pink root. Similar: Norstar. Adaptation: Canada, New York, Michigan, Wisconsin. 2001.
Ringer Grano PRR – Breeder and vendor: ARCO Seed Co. Characteristics: open pollinated, high single-centered Grano. Resistance: pink root. Adaptation: short-day areas.
Ringking (RingGold) – Breeder: Idaho Agric. Expt. Serv., Parma. Parentage: hybrid, PG-1 prr 1 x P54-306 prr T1. Characteristics: early, large, slightly flat to high globe with thick, perfect circles and low incidence of multiple growing points; scale color index of 3; for use as a source for commercial onion ring and general purpose. Resistance: pink root. Adaptation: Yellow Sweet Spanish areas. 1971.
Ringmaker (Xp 102 or Xp Ringer) – Breeder and vendor: Crookham Co. Parentage: F1 hybrid, (closed male x P54-306 prr) x closed pollinator. Characteristics: early, mild, high yielding Spanish type designed for onion ring but also good for fresh market; will harvest mechanically with most equipment. Resistance: high tolerance to pink root and fusarium. Similar: Yellow Sweet Spanish. Adaptation: areas where Yellow Sweet Spanish are grown. 1975.
Rio Blanco Grande (RCSX 903) – Breeder: R.Kreizenbeck. Vendor: Rio Colorado. Characteristics: late white, which produces very large bulbs. Resistance: pink root. Similar: White Grano. 1987.
Rio Bravo (RCSL 1102) – Breeder: R.Kreizenbeck. Vendor: Rio Colorado. Characteristics: early maturity, Granex type, large deep bulbs, yellow color. Resistance: pink root, bolting. Similar: Granex 33. 1986.
Rio Corona (RCSX 1229) – Breeder: R.Kreizenbeck. Vendor: Rio Colorado. Characteristics: early maturity, intermediate daylength, good brown skin. Resistance: excellent tolerance to pink root. 1988.
Rio Durado – Breeder and vendor: Rio Colorado. Characteristics: hybrid, early maturity, intermediate day, yellow Spanish type. Resistance: pink root, bolting. 1989.
Rio Estrella (RCSX1466) – Breeder and vendor: Rio Colorado. Characteristics: hybrid, yellow, Grano type, unusual mildness, high seedling vigor, large uniform bulbs, earlier than 1015Y. Resistance: pink root, bolting. Similar: 1015Y. 1989.
Rio Hondo V.S. (RCSL 1317) – Breeder: R.Kreizenbeck. Vendor: Rio Colorado. Characteristics: sweeter taste than Rio Hondo, considered a sweet onion. Resistance: tolerance to pink root. Similar: Rio Hondo. 1987.
Rio Jefe (RCSL 1203) – Breeder: R.Kreizenbeck. Vendor: Rio Colorado. Characteristics: white Grano shape, producing large bulbs. Resistance: pink root. Similar: Robust. 1987.
Rio Nevada (RCSX9544) – Breeder and vendor: Rio Colorado. Characteristics: hybrid, white Grano, high seedling vigor, very large uniform bulbs, exhibits wide adaptability in growing regions. Resistance: pink root. Similar: Blanco Duro. 1989.
Rio Oso (RCSX 682) – Breeder: R.Kreizenbeck. Vendor: Rio Colorado. Characteristics: deep bronze, round bulb, very firm. Resistance: pink root. Similar: Ben Sheman. 1988.
Rio Plata (RCSL 1202) – Breeder: R.Kreizenbeck. Vendor: Rio Colorado. Characteristics: white, deep, Granex type, outstanding bolting resistance. Resistance: pink root. Similar: Early Supreme. 1968.
Rio Raji Red – Breeder and vendor: Rio Colorado. Characteristics: hybrid, early maturity, Granex type. Resistance: pink root, bolting. 1989.
Rio Redondo (RCSX9536) – Breeder and vendor: Rio Colorado. Characteristics: hybrid, white, Grano type, high seedling vigor, large uniform bulbs, one week earlier than Early White Supreme. Resistance: pink root, bolting. Similar: Rio Plata. 1989.
Rio Santiago (RCSX1445-16) – Breeder: R.Kreizenbeck. Vendor: Rio Colorado. Characteristics: round red hybrid, early maturing. Adaptation: New Mexico, Texas. 1989.
Rio Selecto (RCSX 1325) – Breeder: R.Kreizenbeck. Vendor: Rio Colorado. Characteristics: Grano type, early maturing. 1987.
Rio Sonora (RCSX 7704) – Breeder: R.Kreizenbeck. Vendor: Rio Colorado. Characteristics: Grano type, early maturing. 1989.
Rio Unico (RCSX9535) – Breeder and vendor: Rio Colorado. Characteristics: hybrid, white, Grano type, high seedling vigor, large uniform bulbs, onions tend to mature at the same time. Resistance: pink root, bolting. Similar: Robust. 1989.
Rio Verde PRR (RCSX 948) – Breeder: R.Kreizenbeck. Vendor: Rio Colorado. Characteristics: green bunching type, long white shanks, early maturity. Resistance: strong to pink root. Similar: White Sweet Spanish Valencia. 1987.
Rio Zorro (RCSX 1329) – Breeder: R.Kreizenbeck. Vendor: Rio Colorado. Characteristics: Grano type, late maturing. 1988.
Rip Van Winkle (227W2) – Breeder and vendor: Ferry-Morse Seed Co. Parentage: FM inbreds. Characteristics: early maturity coupled with good storage qualities. Similar: Spartan Sleeper. Adaptation: New York, Wisconsin, and Michigan, and Ontario and Quebec, Canada. 1985.
Riviera (XPH3746) – Breeder: R.Jones. Vendor: Asgrow. Characteristics: intermediate day length, yellow type, good vigor, large thick flat bulbs, low percentage of splits and doubles. Resistance: pink root. Similar: Cimarron. 1991.
Robust White PRR – Breeder and vendor: ARCO Seed Co. Characteristics: F1 hybrid, white type. Resistance: pink root. Adaptation: short-day onion regions. 1964.
Rochester Bronze – Breeder and vendor: L.P. Gunson Company, Rochester, New York. Parentage: selection out of Downing, for color and keeping qualities. Characteristics: long keeping qualities. Similar: Downing. Adaptation: northern tier of the United States. 1945.
Rojo (ARCO 407R) – Breeder and vendor: ARCO Seed Co. Characteristics: F1 hybrid, early, large, thick, flat bulbs with excellent exterior and interior color. Resistance: pink root. Similar: Red Granex. Adaptation: short-day onion areas. 1987.
Rosada Milenio (SXO 1530) – Breeder and vendor: Sunseeds. Parentage: F1 hybrid. Characteristics: pink hybrid short day onion, flattened globe shape, medium size, pungent, late cultivar, thick scales. Resistance: pink root and fusarium. Adaptation: South American market. 2000.
Ruby (BSF Red Globe) – Breeder: John Brozdowski, private breeder, Pine Island, New York. Vendor: Asgrow Seed Co. Characteristics: heavy yielder of large, dark red bulbs. Similar: Southport Red Globe. Adaptation: medium and long day onion areas. Asgrow’s “Your Crops-What’s New for 65,” Fall 1964.
Rumba (SXO 1462) – Breeder: R. Watson. Vendor: Sunseeds. Parentage: F1 hybrid. Resistance: Pink root. Similar: Alabaster. Adaptation: intermediate day. 1996.
Russet – Breeder and vendor: Stokes. 1988.
S-1 White Grano – Breeder and vendor: New Mexico A and M. College, State College. Parentage: synthetic cultivar from 10 inbred lines. Characteristics: earlier and more uniform maturity; broad ovate shape; no red, yellow, or off-colored bulbs. Similar: White Grano. Adaptation: southwestern United States. 1955.
Sabroso (SXO 1440) – Breeder: R. Watson. Vendor: Sunseeds. Parentage: F1 hybrid. Resistance: Pink root and Fusarium. Similar: Valiant. Adaptation: long day. 1996.
Salad Red – Breeder and vendor: Burpee Seed Co. Adaptation: U.S. 2003.
Samba (SXO 1433) – Breeder: R. Watson. Vendor: Sunseeds. Parentage: F1 hybrid. Similar: Tango. Adaptation: long day. 1996.
San Felipe – Breeder and vendor: Ferry-Morse Seed Company, Mountain View, California. Parentage: G36 x F-M inbred. Characteristics: F1 hybrid, slow bolting, large, top-shaped. Similar: Yellow Grano. Adaptation: fall and early winter planting in California. Ferry-Morse Seed Company 15 Apr. 1963.
San Joaquin – Breeder: USDA, Beltsville, Maryland, and the California Agric. Expt. Sta., Davis. Parentage: Stockton S36 and Early Grano. Characteristics: early maturing, nonbolting, high yielding. Similar: Stockton Yellow Globe. Adaptation: southwestern United States, especially the San Joaquin valley. Southern Seedsman, June 1946.
San Juan – Breeder and vendor: Dakota. Characteristics: short day, yellow, high yielding. Resistance: pink root. Similar: Gran Prix. 1992.
San Lucas – Breeder and vendor: Dakota. Characteristics: short day, white, high yielding. Resistance: pink root, bolting. Similar: Early White Supreme. 1992.
San Mateo – Breeder and vendor: Dakota. Characteristics: short day, red, high yielding. Resistance: pink root. Similar: Red Granex. 1992.
San Paulo – Breeder and vendor: Dakota. Characteristics: short day, yellow, high yielding. Resistance: pink root. Similar: Gold Rush. 1992.
San Tomas – Breeder and vendor: Dakota. Characteristics: short day, red, thick flat bulb. Resistance: pink root. Similar: Tropicana. 1992.
Sangria (SSC-8379) – Breeder and vendor: Shamrock. Characteristics: main season, intermediate day, red bulb, large globe-shaped, deep red color with good ring distinction. Resistance: pink root, bolting. Similar: Tango. 1991.
Santa Fe (XP 15225) – Breeder: Omar Diaz. Vendor: Seminis-Asgrow. Parentage: F1 hybrid. Characteristics: full season, dark skin, bolt tolerant, globe shaped, high percentage single centers. Resistance: fusarium basal rot, pink root. Similar: Vaquero. Adaptation: Pacific northwest, south-central California, Colorado. 2002.
Sassy Brassy (232003) – Breeder and vendor: Ferry-Morse Seed Co. Parentage: FM inbreds. Characteristics: late-season storage type, dark bronze; tight skins. Resistance: pink root. Resistance: tolerance to fusarium. Similar: Spartan Banner. Adaptation: Michigan, Wisconsin, and New York and Ontario, Canada. 1985.
Saticoy Hybrid (OB Number) – Breeder and vendor: Petoseed Company, Saticoy, California. Characteristics: F1 hybrid, 5 to 7 days earlier than Early Harvest. Adaptation: Texas, mountain areas of Colorado, and central California. The Peto Story, Petoseed Company, 1961.
Savannah Sweet (PS5783) – Breeder: A.Burkett. Vendor: Petoseed. Characteristics: hybrid, early short day, uniform, thick flat shape, small necks, golden yellow bulbs with excellent retention. 1989.
Seahawk (EX 15232) – Breeder and vendor: Seminis Vegetable Seeds-Asgrow. Parentage: F1 hybrid. Characteristics: Spanish, storage type; dark skinned; sizes well; will store up to 7 months; 110 day maturity. Resistance: intermediate to Fusarium basal rot and pink root. Similar: Valiant. Adaptation: NAFTA, Pacific northwest U.S. 2003.
Seco (XP 643) – Breeder and vendor: Asgrow Seed Co. Parentage: closed pedigree Asgrow and USDA inbreds. Characteristics: F1 hybrid, high solids Southport White Globe type hybrid primarily for dehydration. Resistance: tolerance to pink root. Adaptation: long-day areas. 1968.
Seneca – Breeder and vendor: Golden Valley. Characteristics: yellow storage hybrid. Resistance: some to pink root, fusarium. 1991.
Sentinal (5551) – Breeder and vendor: Joseph Harris Co. Characteristics: F1 hybrid, long storage, dark scales. Resistance: fusarium. Similar: Downing Yellow Globe. Adaptation: wide. 1974.
Serrana (XP8403) – Breeder: R.Jones. Vendor: Asgrow. Characteristics: tropical yellow bulb type, early maturity, good storage potential. Similar: Baia Periforme. 1993.
Sevillana (129013) – Breeder and vendor: Seminis Vegetable Seeds-Petoseed. Parentage: F1 hybrid. Characteristics: mid season long day type with high plant vigor; gives larger sizes under low plant density and mid sizes (very uniform) under high plant density; skin is good dark color; storability good. Similar: Daytona. Adaptation: South America. 2003.
Seville (AX-1849) – Breeder and vendor: Aristogenes. Characteristics: outstanding vigor, high yielding ability, highly single centered, excellent uniformity, good storage quality. Resistance: pink root. Similar: Sweet Amber. 1991.
Shamrock – Breeder and vendor: Northrup King and Comp., Minneapolis, MN. Parentage: Selection from Southport White Globe. Characteristics: selected for shipping. Northrup King Desc. List, GS 53-2. 1959.
Shasta (PSX73089) – Breeder: R.Engle. Vendor: Petoseed. Characteristics: single centers, vigorous tops. Similar: Oro Grande. 1993.
Showtime (PSX63788) – Breeder: R.Engle. Vendor: Petoseed. Characteristics: yellow Spanish hybrid, extra large jumbo bulbs, globe shaped, mild flavor, excellent storage, midseason maturity range. Similar: Summit. 1993.
Sierra (XP70) – Breeder and vendor: Asgrow Seed Co. Characteristics: F1 hybrid, medium season maturity, better ability for storage than most Sweet Spanish types. Similar: Yellow Sweet Spanish. Adaptation: wide. 1976.
Sierra Blanca (PS 25294) – Breeder and vendor: Seminis-Petoseed. Parentage: F1 hybrid. Resistance: Pink root. Similar: Aspen. Adaptation: Texas, Colorado, Mexico.
Silverstone (SXO 1457) – Breeder: Rick Watson. Vendor: Sunseeds. Parentage: F1 hybrid. Characteristics: long day, northern type, hybrid, white globe shape, bright white outer scales, firm and pungent flesh, excellent storage abilities. Resistance: pink root. Similar: Blanco Duro. Adaptation: Italy; long day onion market. 2000.
Simcoe (DEXP 764) – Breeder and vendor: Dessert Seed Co. Parentage: hybrid, B2264A x Dessert Pollinator. Characteristics: bronze, deep globe, long storage, high yield. Similar: Downing Yellow Globe. Adaptation: northern mucks. 1974.
Sin Simeon – Breeder and vendor: Dakota. Characteristics: white, short day, high yielding. Resistance: pink root, bolting. Similar: Early White Supreme. 1992.
Sioux – Breeder: Ferry-Morse Seed Company, Mountain View, California. Characteristics: F1 hybrid, a full Spanish hybrid that stores well; bulbs large, globular, with dark brown scales. Similar: Sweet Spanish. Adaptation: long photoperiod areas. Ferry-Morse Seed Company, 2 July 1963.
Sleeping Beauty (225W2) – Breeder: K.McLellan. Vendor: Ferry-Morse. Characteristics: main season, excellent yields, long storage. Similar: Sentinel. 1985.
SM 107 – Breeder and vendor: Samen Mauser America. Parentage: hybrid. Characteristics: Granex hybrid; very early maturing; slow bolting and uniform medium to large onion has flattened globes with refined necks; diameter measures 3 1/2 to 4 inches. Resistance: tolerance to pink root and Botrytis. 1998.
SMX 102 – Breeder and vendor: Samen Mauser America. Parentage: hybrid. Characteristics: short-day hybrid Grano type onion; features crisp, firm, and mild flesh with extreme vigor; high yielding; slow bolting. Resistance: pink root tolerance. 1998.
Snow White – Breeder: USDA and Utah Agric. Expt. Sta., Logan. Parentage: CW15-8-4-1A x WSS 89-1-4 Cochise White inbred x White Sweet Spanish inbred. Characteristics: F1 hybrid, plant large, semi-glossy foliage; bulbs medium size, white globe shape, firm, pungent, medium maturity, long storage. Similar: White Sweet Spanish. Onion Hybrid Snow White USDA release 28 February. 1957.
Snowbaby – Breeder and vendor: Johnny’s.
Solid Gold (AX-1468) – Breeder: E.Wheeler. Vendor: Aristogenes. Characteristics: consistent heavy yielder of attractive, high quality, very long storing bulbs. Resistance: pink root. Similar: Paragon. 1992.
Span-Gran – Breeder and vendor: Bill Wahlert Seeds, Oregon. Characteristics: hybrid, 2 to 4″ in diameter, light straw-colored scales, predominately single centered, medium to long storage, Yellow Sweet Spanish type. Resistance: pink-root. Similar: Yellow Sweet Spanish. Adaptation: Idaho, eastern Oregon, northern California, and Iowa. 1972.
Spanish Main – Breeder: K.McLellan, P.Olesen and Associates, Parma, Idaho. Vendor: Ferry-Morse. Parentage: closed. Characteristics: long day Spanish hybrid. Resistance: tolerance to pink root. Similar: El Capitan. Adaptation: areas where Yellow Sweet Spanish is grown. 1969.
Spartan – Breeder: USDA, Iowa Agric. Expt. Sta., Ames, and Michigan Agric. Expt. Sta., East Lansing. Parentage: IA 467-8A x B2215C Melzers Yellow Globe x Brigham Yellow Globe. Characteristics: F1 hybrid, medium plant size, nonglossy foliage; bulb medium size, brown scales, high globe, pungent, long storage. Similar: Downing Yellow Globe. Adaptation: where Brigham Yellow Globe is grown. Onion Hybrid Spartan, USDA release, 14 Mar. 1957.
Spartan Banner – Breeder: Michigan State University, E. Lansing. Parentage: MSU 2399A x MSU 611C. Characteristics: F1 hybrid, long-day, storage, late, high yield. Similar: Spartan Gem. Adaptation: northern muck areas of the United States. Mimeo Announcement, Dec. 15, 1965.
Spartan Banner 80 – Breeder: USDA, Michigan State Expt. Stn. Parentage: (MSU 611-1A x MSU 611B) x MSU 2399B. 1979.
Spartan Bounty – Breeder: Michigan State University, East Lansing. Parentage: MSU 1411A x MSU 611C. Characteristics: F1 hybrid, long-day, storage type. Firm, long keeping, high yield, uniform maturity. Similar: Downing Yellow Globe. Adaptation: northern long-day onion areas. Release announcement, Michigan State University, Nov. 14, 1966.
Spartan Era – Breeder: Michigan State University, East Lansing. Parentage: IA 736A x MSU 611C. Characteristics: F1 hybrid, late and long storing; bulb very hard, pungent, uniform, high globe. Similar: Brigham Yellow Globe. Adaptation: northern muck land. C.E. Peterson 27 May 1963.
Spartan Gem – Breeder: Michigan Sate University, East Lansing. Parentage: MSU728A x MSU611C. Characteristics: F1 hybrid, late and long storing; bulb very hard, pungent, uniform high globe. Resistance: some tolerance to pink root. Similar: Brigham Yellow Globe. Adaptation: northern muck land. C.E. Peterson 27 May 1953.
Spartan Sleeper – Breeder: USDA, Michigan State Expt. Stn. Parentage: (MSU 2935A x MSU 1459B) x MSU 4535B. 1974.
Special 38 – Breeder and vendor: ARCO Seed Company. Characteristics: F1 hybrid. Resistance: pink root. Similar: Henrys Special. Adaptation: short-day onion regions. 1983.
Spectrum (SXO 1461) – Breeder: R. Watson. Vendor: Sunseeds. Parentage: F1 hybrid. Similar: Marvel. Adaptation: long day. 1997.
Spinnaker (XP 15043) – Breeder and vendor: Seminis-Asgrow. Parentage: F1 hybrid. Resistance: Pink root and Fusarium. Similar: Valiant. Adaptation: northwest U.S. and Italy.
Spirit – Breeder and vendor: Bejo. Characteristics: hybrid, dark brown bulb, long storability. 1989.
Squire (HMX0627) – Breeder: M.Mason. Vendor: Harris Moran. Characteristics: large colossal bulbs, globe shaped. Resistance: tolerance to pink root.
Stallion (HMX2327) – Breeder and vendor: Harris Moran. Characteristics: short day onion, yellow in color, medium in maturity, globe shaped bulbs, large bulb size, excellent uniformity. 1992.
Stealth (MR7500) – Breeder and vendor: Rispens. Characteristics: 108 day onion, long day, good storage. Resistance: pink root, fusarium. Similar: Legacy. 1992.
Sterling (PSX92088) – Breeder: R.Engle. Vendor: Petoseed. Characteristics: long day type, white sweet Spanish type, globe shaped jumbo. 1991.
Stetson (HMX2324) – Breeder and vendor: Harris Moran. Characteristics: short day onion, white in color, early-medium maturity, slightly flattened bulb shape, jumbo bulb size. Resistance: pink root, good tolerance to bolting. 1992.
Stockade (XP 77012) – Breeder and vendor: Seminis-Asgrow. Parentage: F1 hybrid. Characteristics: mid-late storage onion, 115 days maturity. Similar: Duration. Adaptation: New York, Michigan, Wisconsin. 2000.
Stockton G-36 – Breeder: California State Expt. Stn. Similar: Stockton Yellow Globe.
Stratus (XP 6800) – Breeder: Omar Diaz. Vendor: Seminis-Asgrow. Parentage: F1 hybrid. Characteristics: main season, white single centered, globe shaped, bolt resistant. Similar: Diamente. Adaptation: Mexico, Texas, Central America. 2001.
Sugar Belle (SSC 6371) – Breeder and vendor: Shamrock Seed Co. Parentage: F1 hybrid. Resistance: Bolting. Similar: Granex 33. Adaptation: all short onion growing regions. 1999.
Summit (PSX64289) – Breeder: R.Engle. Vendor: Petoseed. Characteristics: long day type, midseason globe shaped jumbo. 1991.
Sun Sweet (Sunex1504) – Breeder: I.Miller. Vendor: Sunseeds. Characteristics: short day, attractive yellow scales, mild in flavor highly single centered. Resistance: high tolerance to pink root. 1995.
Sunburst (W4A x W101B) – Breeder: University of Wisconsin, Madison. Parentage: W4A x W101B. Characteristics: F1 hybrid, heavily scaled; good yielder; minimum shrinkage in storage. Resistance: tipburn. Adaptation: midwestern. Memo to Onion Seed Producers, 1 May 1964.
Sunglow (Crk N81) – Breeder and vendor: Crookham Co. Characteristics: F1 hybrid, uniform midseason globe with excellent storage quality and above-average yield. Similar: Downing and Brigham Yellow Globe. Adaptation: areas where Downing and Brigham Yellow Globe are grown. 1978.
Suntan – Breeder and vendor: Bejo. 1989.
Sunup (Sunex1502) – Breeder: I.Miller. Vendor: Sunseeds. Characteristics: yellow scales. Resistance: tolerance to pink root. 1995.
Super Apollo (ACX 801615) – Breeder and vendor: Abbott & Cobb. Characteristics: early maturing, uniform size and shape, good storage quality. Similar: Early Yellow Globe, Apollo. 1982.
Super Chief (XP 77031) – Breeder: Omar Diaz. Vendor: Seminis-Asgrow. Parentage: F1 hybrid. Characteristics: full season true Spanish onion, 120 days, stores well, single centers, globe shaped, excellent dark skin. Similar: Vision. Adaptation: Pacific northwest, California, Colorado. 2001.
Super Set – Breeder and vendor: Abbott & Cobb. Characteristics: sets hold longer in storage than cultivars presently used. Similar: Ebenezer. 1982.
Super Spice 2 – Breeder and vendor: Stokes. 1988.
Super Staf (25294) – Breeder and vendor: Seminis-Petoseed. Parentage: F1 hybrid. Resistance: Pink root. Similar: Aspen, Alabaster.
Super Sweet – Breeder and vendor: Dakota. Characteristics: thick, flat yellow, very mild. Resistance: pink root. Similar: Sweet Vidalia. 1993.
Super Sweet Red – Breeder and vendor: Dakota. Characteristics: hybrid, red, short day. Resistance: pink root. 1994.
Superbronze – Breeder and vendor: L.P. Gunson Company, Rochester, New York. Parentage: Downings x Southern Red Globe. Characteristics: long keeping, multi-skinned, high yielding. Adaptation: northern tier of the United states and Canada. 1953.
Superior – Breeder and vendor: Abbott & Cobb. Characteristics: medium large, deep globe, long keeping, uniform size and shape. Similar: Downing Yellow Globe. 1982.
Surecrop (D5537) – Breeder and vendor: Joseph Harris Co. Characteristics: F1 hybrid, high yield. Similar: Spartan Banner. Adaptation: northeastern and midwestern United States. 1980.
Surprise – Breeder: USDA, Idaho Agric. Expt. Sta., Moscow and Iowa Agric. Expt. Sta., Ames. Parentage: B2207A x B2215C Brigham Yellow Globe inbreds. Characteristics: F1 hybrid, large plant size, nonglossy foliage, late maturity, good storage; bulbs medium sized, good yellow color, high globe, pungent firm. Similar: Brigham Yellow Globe. Adaptation: where Brigham Yellow Globe is grown. Release of Onion Hybrid Surprise USDA release. 1 Dec. 1953.
Sweet Amber (XPH 77N76) – Breeder and vendor: Crookham Co. Characteristics: F1 hybrid, early mild Spanish hybrid with good single centers and thick, succulent rings; heavy amber scales that adhere well. Resistance: high tolerance to pink root. Similar: Yellow Sweet Spanish. Adaptation: areas where Yellow Sweet Spanish is grown. 1986.
Sweet and Early – Breeder and vendor: Burpee. Characteristics: mid day hybrid.
Sweet Dixie (RCSX 7702) – Breeder: R.Kreizenbeck. Vendor: Rio Colorado. Characteristics: deep Granex type. 1989.
Sweet Georgia (KFX1100) – Breeder and vendor: K-F Seeds. Characteristics: F1 hybrid, early mild Granex type, bolt-resistant. Resistance: pink root. Similar: F1 hybrid Granex. Adaptation: short-day growing areas, especially Georgia. 1984.
Sweet Melissa (SX 15190N) – Breeder: Felix Serquen. Vendor: Sunseeds. Parentage: F1 hybrid. Characteristics: high yielding yellow Granex hybrid, high percentage jumbo sizes, mild flavor. Resistance: pink root. Similar: Yellow Granex. Adaptation: Granex market areas. 2000.
Sweet Perfection (XPH85N39) – Breeder: N.Molenaar. Vendor: Crookham. Characteristics: consistent high yielding, predominantly single centered, a few days earlier than Sweet Amber, longer storage than Sweet Amber. Resistance: pink root. Similar: Sweet Amber. 1989.
Sweet Ring (ARCO 92-3147Y) – Breeder and vendor: ARCO Seed Co. Characteristics: F1 hybrid, maturity 7 to 10 days earlier than Early Premium, highly single-centered, medium to jumbo globe-shaped bulbs. Resistance: pink root. Similar: Colossal. Adaptation: short-day growing areas. 1985.
Sweet Sandwich – Breeder and vendor: USDA, Michigan State University, Cornell University and University of Wisconsin. Vendor: Various. Parentage: F1 hybrid, (MSU5718A x MSU8155B) x MSU826B. Characteristics: good storage quality, low pungency (mild) from storage, long-day type. Similar: Spartan Banner. Adaptation: organic soils of New York and the midwestern United States. 1983.
Sweet Spanish Colorado Number 6 – Breeder: Colorado Agric. Expt. Sta., Fort Collins. Vendor: various Colorado Seed Companies. Parentage: selection out of Burrells Riverside Strain of Sweet Spanish. Characteristics: late maturity, dark brown scale color, better storage qualities than most Sweet Spanish, vigorous top growth. High tolerance to Pink Root. Adaptation: Arkansas Valley of long growing seasons. (Idaho number 6 is an early selection out of Colo. no.6). College Agric. Expt. Sta. Rpts. 1937.
Sweet Success (Sunex1514) – Breeder: I.Miller. Vendor: Sunseeds. Characteristics: early maturity, low bolting, large high-quality bulbs. Resistance: pink root. Similar: Yellow Granex. 1994.
Sweet Sunrise – Breeder and vendor: Champion. Characteristics: sweet, short day, yellow hybrid, high percentage single centers, excellent yields. Resistance: fine tolerance to pink root, good tolerance to bolting. 1995.
Sweet Vidalia (KFX-1133) – Breeder and vendor: K-F Seeds. Characteristics: F1 hybrid, bolt-resistant, high percent single centers; unusual mildness when grown in Vidalia, GA, area. Resistance: pink root. Similar: F1 Granex. Adaptation: short-day growing areas, especially Georgia. 1985.
Sweet Winter (OWY-1909) – Breeder and vendor: Dessert Seed Co. Characteristics: open pollinated, larger overwinter onion, flattened globe, mild flavor, matures mid-June. Resistance: freezing. Similar: Walla Walla Sweet. Adaptation: wide. 1980.
Sweetex (ARCO 532Y) – Breeder and vendor: ARCO Seed Co. Characteristics: F1 hybrid, large, early Granex-type bulbs. Resistance: pink root. Adaptation: short-day onion areas. 1987.
Sweetex (FMX 225) – Breeder: N.Dragoescu. Vendor: Ferry-Morse. Characteristics: outstanding hybrid for high percentage of jumbo sizes, Grano shape, 10-14 days earlier and stores better than 1015Y. Resistance: pink root. Similar: 1015Y. 1988.
Sweetheart (219W2) – Breeder and vendor: Ferry-Morse Seed Co. Parentage: F1 hybrid, FM inbreds. Characteristics: Spanish type that can be spaced for jumbo sizes and will store slightly longer than most Spanish hybrids; highly single-centered. Similar: Cima. Adaptation: Michigan and New York. 1985.
Tamarack 2 – Breeder and vendor: Stokes. 1988.
Tampico – Breeder and vendor: ARCO/Dessert. Resistance: pink root. 1982.
Tango (Expt 110-4) – Breeder and vendor: ARCO Seed Co. Characteristics: F1 hybrid, dark red color extends to center of bulb when well-cured; bulbs uniform and globe-shaped with small necks and excellent storage qualities. Similar: Carmen. Adaptation: northern onion-growing areas. 1985.
Tara – Breeder and vendor: Rio Colorado. Characteristics: intermediate onion; has been adapted to withstand the stresses of heat and dry conditions; yields mostly jumbo to colossal sized onions. Resistance: bulbs have excellent pink root resistance. 1998.
Tarmagon – Breeder and vendor: Stokes. Characteristics: long day by short day hybrid for long day production. 1988.
Taurus (XP45) – Breeder and vendor: Asgrow Seed Co. Characteristics: F1 hybrid, large bulb for long storage. Resistance: fusarium rot. Similar: Spartan Banner, Spartan Gem, and Sunburst. Adaptation: long-season areas of midwestern and northeastern United States and Europe. 1975.
Terlingua (XP 6786) – Breeder and vendor: Seminis-Asgrow. Parentage: F1 hybrid. Resistance: Pink root. Similar: Linda Vista. Adaptation: Texas, Mexico, California.
Tesoro (Sunex1473) – Breeder: R.Watson. Vendor: Sunseeds. Characteristics: yellow sweet Spanish, large bulb size, good storage quality. Resistance: pink root, fusarium. Similar: Valiant. 1994.
Teton (PSX60487) – Breeder: R.Engle. Vendor: Petoseed. Characteristics: long storage, dark scales, hard bulbs, export type. Similar: Bull Ring. 1994.
Texas Early Grano – Breeder and vendor: Texas Agric. Expt. Sta., College Station. Parentage: selection from Early Grano. Characteristics: top shaped globe; early, uniform under south Texas conditions. Adaptation: south Texas. Texas Agric. Expt. Sta. Prog. Rpt. (Mimeo). June 1944.
Texas Grano 438 – Breeder: L.Pike, Texas A and M University. Characteristics: short day, one week later than TG 1105Y, slightly flattened globe, fairly large neck, excellent root system, excellent shipping quality. Resistance: pink root. Similar: New Mexico Yellow Grano. PVP. 1989.
Texas Grano 1015Y – Breeder: L.Pike, Texas A and M University. Characteristics: TEG 951C. 1987.
Texas Grano 1025Y – Breeder: L.Pike, Texas A and M University. Parentage: Texas Early Grano 502 x Ben Shemen. 1987.
Texas Grano 1105Y – Breeder: L.Pike, Texas A and M University. Parentage: Texas Early Grano 502 x Ben Shemen. 1987.
Texas Hybrid 23 – Breeder: Texas Agric. Expt. Sta., College Station, and USDA. Parentage: YB 986A x L365 Yellow Bermuda x Crystal Wax. Characteristics: F1 hybrid. Resistance: pink root in Texas. Similar: Yellow Bermuda. Texas Agric. Expt. Sta. Bul. 854-Onion Varieties in Texas. March 1957.
Texas Hybrid 28 – Breeder: Texas Agric. Expt. Sta., College Station, and USDA. Parentage: YB986A x L 303. Characteristics: F1 hybrid. Resistance: pink root in Texas. Similar: Yellow Bermuda. Texas Agric. Expt. Sta. Bul. 854. Onion Cultivars in Texas, March 1957.
Texspan PRR – Breeder and vendor: ARCO Seed Co. Characteristics: open pollinated. Resistance: pink root. Similar: Ben Sheman. Adaptation: intermediate onion areas. PVP certificate number 800159. 1981.
Texstar 80 Yellow PRR – Breeder and vendor: ARCO Seed Co. Characteristics: F1 hybrid. Resistance: pink root. Similar: Yellow Granex. Adaptation: short-day onion regions. 1980.
Tioga (PS 663395) – Breeder: Omar Diaz. Vendor: Seminis-Petoseed. Parentage: F1 hybrid. Characteristics: early yellow Spanish, 115-120 days to maturity, globe shaped long storage. Resistance: fusarium basal rot, pink root. Similar: Teton. Adaptation: Pacific northwest, Colorado, Utah, Northern California. 2000.
Tip Top (E1216 (4C-X154)) – Breeder: Sakamoto. Vendor: Ferry-Morse. Characteristics: uniform, vigorous Grano hybrid, good size, scales slightly darker than Texas Early Grano but retained much longer. Resistance: pink root. Similar: Texas Early Grano 502 PRR. 1982.
Titania (XPH3371) – Breeder: S.Hendricks. Vendor: Asgrow. Characteristics: long day type, Granex shape, bulbs generally large with good scale color and retention, storability is very good. Resistance: pink root, fusarium. Similar: Dorata di Parma (Italy). 1990.
Toltec – Breeder and vendor: Dakota. Characteristics: late maturing, high yielding, yellow sweet Spanish. Resistance: pink root. Similar: Vega. 1990.
Toluca (XP 07777103) – Breeder and vendor: Seminis. Parentage: Hybrid. Characteristics: full season white Spanish long day onion, matures in 120 days with shiny white globe shaped bulbs; sprint planted/transplanted; late summer/early fall harvest; grown at latitudes lower than 48L. Similar: Sterling. Resistance: Interme-diate resistance to Fusarium basal rot (FBR). Adaptation: NAFTA – Mexico and Pacific Northwest. 2005.
Top Keeper – Breeder and vendor: Takii. Characteristics: overwintering yellow type. Resistance: tolerance to botrytis, downy mildew, bolting. 1988.
Topaz (XP 194) – Breeder and vendor: Asgrow Seed Co. Parentage: closed combination of USDA male-sterile and pollinator lines. Characteristics: F1 hybrid, main season with good scales, keeping qualities and market appearance. Similar: Elite. Adaptation: long-day, northern onion areas. Asgrow’s “Your Crops-What’s New for 67,” Fall 1966.
Topnotch (90H4) – Breeder: N.Molenaar. Vendor: Crookham. Characteristics: very hard globe to tall globe, long term storage onion, 110 day maturity from seeding. Resistance: pink root, fusarium. Similar: Spartan Banner 80. 1994.
Topper (Briggs #1) – Breeder and vendor: Shamrock. Characteristics: early maturing, open pollinated, short day onion, very good size bolt. Adaptation: Rio Grande, New Mexico, California. Resistance: pink root. Similar: BR#1. PVP. 1989.
Torero (SXO 1436) – Breeder: R. Watson. Vendor: Sunseeds. Parentage: F1 hybrid. Resistance: Pink root and Fusarium. Similar: Vaquero. Adaptation: Sweet Spanish growing regions. 1998.
Torque (9OH29) – Breeder: N.Molenaar. Vendor: Crookham. Characteristics: hard storage onion for eastern U.S. mud soils, 102 day maturity from seeding, very hard round globe. Resistance: pink root, fusarium. Similar: Autumn Keeper. 1994.
Tough Ball – Breeder and vendor: Takii. Characteristics: overwintering yellow storage type. Resistance: tolerance to botrytis, downy mildew, bolting. 1988.
Tradewind (XPH 15042) – Breeder and vendor: Seminis-Asgrow. Parentage: F1 hybrid. Resistance: Pink root and Fusarium. Similar: Teton. Adaptation: northwest U.S., Utah, Colorado.
Treasure – Breeder: USDA, Cornell University, Ithaca, and Idaho Agric. Expt. Sta., Moscow. Parentage: B2267A x B12115C Brigham Yellow Globe x Yellow Sweet Spanish. Characteristics: plant size large, nonglossy foliage; bulbs medium size, yellow sloping shoulders, deep globe, firm; late maturity, long storage. Similar: Yellow Sweet Spanish. Adaptation: northern United States. Notice of Release of F1 hybrid Treasure, USDA release 1 Sept. 1960.
Tribute (XPH3958) – Breeder: S.Hendricks. Vendor: Asgrow. Characteristics: storage type of onion with round globe shape, good skin quality, trim neck. Resistance: pink root. Similar: Brown Beauty. 1993.
Trooper (MR7550) – Breeder and vendor: Rispens. Characteristics: 110 day maturity, high yield. Resistance: pink root, fusarium. Similar: Duration. 1992.
Tropex (XP 181) – Breeder and vendor: Asgrow Seed Co. Parentage: Excel and Texas Grano 502. Characteristics: open pollinated. Similar: Grano 502. Adaptation: short-day areas. 1974.
Tropicana Red PRR – Breeder and vendor: ARCO Seed Company. Characteristics: F1 hybrid. Resistance: pink root. Adaptation: short-day onion areas. 1964.
Tule – Breeder and vendor: Ferry-Morse Seed Company, Mountain View, California. Parentage: G36 x Sweet Spanish type. Characteristics: F1 hybrid, bulb yellow, large, shallow globe, flesh white; slower bolting than Sweet Spanish. Similar: Sweet Spanish Utah. Adaptation: late fall and early winter planting in California. Ferry-Morse Seed Company, 15 Apr. 1963.
Twister (PS 492) – Breeder and vendor: Seminis-Petoseed. Parentage: F1 hybrid. Similar: Granex. Adaptation: Arizona, California.
Ultra (FMX253) – Breeder: N.Dragoescu. Vendor: Ferry-Morse. Characteristics: short day yellow-copper scale color, 10-12 days earlier than Sweetex. Resistance: pink root. Similar: Sweetex. 1991.
Uniglobe 100 – Breeder: R. Maxwell. Vendor: Seminis-Petoseed. Parentage: F1 hybrid. Adaptation: Long-day. 1997.
Uniglobe 108 – Breeder: R. Maxwell. Vendor: Seminis-Petoseed. Parentage: F1 hybrid. Adaptation: Long-day. 1996.
Uniglobe 118 – Breeder: R. Maxwell. Vendor: Seminis-Petoseed. Parentage: F1 hybrid. Adaptation: northwest U.S. 1996.
Uno Grande PRR (Ringer PRR) – Breeder and vendor: Moran. Characteristics: deeper bulb shape than Ringer, a Texas early Grano 520 type, thinner neck diameter, 5 days earlier maturity than TEG502, short day. Resistance: pink root. Similar: Ringer. 1983.
Utopia (XPH6025) – Breeder: R.Jones. Vendor: Asgrow. Characteristics: intermediate, yellow skin, early globe shaped bulb, for immediate shipment, limited storage, early summer harvest. Similar: Cimarron. 1992.
Valdez (DEXP 659-3) – Breeder and vendor: Dessert Seed Co. Characteristics: F1 hybrid, yellow sweet Spanish, high yields, long storage life. Resistance: Pink root. Similar: Victory. Adaptation: Sweet Spanish onion growing areas. 1978.
Valiant (DEXP 592P) – Breeder and vendor: ARCO/Dessert. Characteristics: midseason Spanish type, very firm with good mechanical handling quality, long storage potential. Similar: Fiesta. 1984.
Vantage (PS 67691) – Breeder and vendor: Seminis-Petoseed. Parentage: F1 hybrid. Resistance: Pink root. Similar: Candy, Teton. Adaptation: northwest U.S., California, Colorado, Utah.
Vaquero (Sunex 1487) – Breeder: R.Watson. Vendor: Sunseeds. Characteristics: main season yellow Spanish type capable of high yields of large bulbs with a high frequency of single centers. Resistance: pink root, fusarium basal rot. Similar: Bravado. 1992.
Vega (XPH 419) – Breeder and vendor: Asgrow Seed Company. Characteristics: F1 hybrid with large bulbs and good storability for this class. Resistance: possible field tolerance to pink root. Similar: Spanish types. 1981.
Viceroy (XPH3466) – Breeder: S.Hendricks. Vendor: Asgrow. Characteristics: main season Spanish type for limited storage, very uniform size and shape, medium scale color. Resistance: pink root. Similar: Maya. 1993.
Viper (XPH3803) – Breeder: S.Hendricks. Vendor: Asgrow. Characteristics: true Spanish long day hybrid type, improved bolting tolerance relative to Vega, bulbs with good color and scale retention, storage is limited. Resistance: pink root, fusarium. Similar: Vega. 1994.
Vision (PS754) – Breeder: R.Engle. Vendor: Petoseed. Characteristics: hybrid yellow Spanish type, late maturity, excellent storage, jumbo and colossals, single centers. Resistance: pink root. 1995.
Vista (PSX62588) – Breeder: R.Engle. Vendor: Petoseed. Characteristics: long day onion, globe shaped jumbo size, excellent storage. 1991.
Voyager (HMX2613) – Breeder and vendor: Harris Moran. Characteristics: large blocky bulbs with long term storage. Resistance: tolerance to pink root. Similar: Spartan Banner. 1991.
Waikato (XP 6808) – Breeder: David Dean. Vendor: Seminis-Asgrow. Parentage: open pollinated. Characteristics: yellow hard storage, golden brown scales, globe shaped, can be stored 4-6 months. Resistance: fusarium basal rot. Similar: Creamgold. Adaptation: New Zealand, Australia, South Africa, Colorado. 2000.
Warhawk – Breeder and vendor: Dakota. Characteristics: yellow intermediate type. Resistance: tolerance to pink root. Similar: Buffalo. 1993.
White Alamo Hybrid – Breeder and vendor: Dessert Seed Company, El Centro, California. Characteristics: F1 hybrid, matures about 7 to 10 days earlier than White Granex; good prepackage onion; bulb high, flat, mild; stores well. Resistance: Southern Texas strain of pink root. Similar: White Granex. Adaptation: same region as White Granex. Dessert Catalog, 1962.
White Creoso PRR – Breeder and vendor: ARCO Seed Co. Characteristics: open pollinated. Resistance: pink root. Adaptation: intermediate onion areas. 1968.
White Delite (Crk XPN 135) – Breeder and vendor: Crookham Co. Parentage: F1 hybrid, (CW 15-8 x WSS34-89) x Crk 139C. Characteristics: a While Spanish type that stores longer, uniform, medium high globe shape with snow white interior and exterior bulb color. Resistance: tolerance to some strains of pink root. Similar: White Sweet Spanish. 1980.
White Express – Breeder and vendor: ARCO Seed Company. Characteristics: F1 hybrid. Resistance: pink root. Adaptation: short-day onion areas. 1982.
White Granex – Breeder: USDA and Texas Agric. Expt. Sta., College Station. Parentage: L 303A x B 1410C. Eclipse x TEG. Characteristics: F1 hybrid, medium plant size, semi-glossy foliage; bulbs large, white, high flat, taper to base, mild, soft. Similar: Granex. Adaptation: southern United States. White Granex, A New F1 Onion Hybrid for the South, USDA release, 29 June 1956.
White Granite – Breeder and vendor: Asgrow Seed Company, New Haven, Connecticut. Characteristics: F1 hybrid, higher solids than most cultivars; tall globe shape reduces trimming losses for dehydration. Similar: Asgrow W45. Adaptation: same as Southport White Globe. Asgrow Commercial Growers Guide. 1963.
White Ivory – Breeder and vendor: Harris Moran. Characteristics: globe shape, medium-large size, excellent storage. 1992.
White Keeper (Crk XPH 136) – Breeder and vendor: Crookham Co. Parentage: F1 hybrid, (CW 15-8 x Crk GF3) x Crk 139C. Characteristics: modified White Spanish type that stores as well as Southport White Globe, bulbs firm; early maturity. Resistance: tolerance to various strains of pink root. Similar: White Sweet Spanish. Adaptation: areas where WSS are grown. 1980.
White Knight (XP 646) – Breeder and vendor: Asgrow Seed Co. Characteristics: long-shanked onion with slender, very deep bulb for bunching. Adaptation: wide. 1968.
White Lightning – Breeder and vendor: Dakota. Characteristics: overwintering white type. Resistance: tolerance to pink root, bolting. 1993.
White Majesty PRR – Breeder and vendor: ARCO Seed Co. Characteristics: F1 hybrid. Resistance: pink root. Adaptation: short-day onion areas. 1964.
White Persian – Breeder and vendor: USDA. Characteristics: selected from PI 86279 from Persia.
White Spear Bunching (4C-112) – Breeder and vendor: Ferry-Morse Seed Co. Characteristics: open pollinated, early, distinctly upright habit with blue-green tubular foliage, very long shanks, non-bulbing. Resistance: Pink root. Similar: Evergreen Bunching-Nebuka. 1979.
White Sweet Spanish 959 – Breeder and vendor: Asgrow Seed Company, New Haven, Connecticut. Characteristics: 10 days earlier than regular White Sweet Spanish; small trim neck of Idaho strain and size of the Utah strain. Similar: White Sweet Spanish. Adaptation: same as White Spanish types. Asgrow, Your Crops, Fall 1961.
White Tampico PRR – Breeder and vendor: ARCO Seed Company. Characteristics: F1 hybrid. Resistance: pink root. Adaptation: short-day onion areas. 1982.
Windfall (XPH3802) – Breeder: S.Hendricks. Vendor: Asgrow. Characteristics: full storage type onion with tall globe shape, good skin characteristics, excellent storability. Resistance: pink root, fusarium. Similar: Crusader. 1994.
Winter Over – Breeder: Herman Schlomann, Oradell, N.J. Vendor: Joseph Harris Company, Rochester, New York. Parentage: local strain bunching onion selected for winter hardiness and nonbolting. Characteristics: high quality bunching onion, slow to produce seeders, good winter hardiness. Resistance: winter kill. 1957.
Wolf (T-383) – Breeder and vendor: Takii. Parentage: F1 hybrid. Similar: Eskimo.
Wolverine – Breeder and vendor: Stokes. Characteristics: storage onion. Resistance: field tolerance to pink root. 1991.
XON 301W – Breeder and vendor: Sakata Seed America, Inc. Parentage: Hybrid. Characteristics: new intermediate hybrid white onion with a consistent globe shape and brilliant white scale; typically jumbo in size; mid-early maturity; offers a high percent-age of single-centered onions. Resistance: tolerant to pink root. 2005.
Wrangler – Breeder and vendor: Rispens. Characteristics: 115 day maturity, Spanish by eastern type, very uniform, large size, good storage. Resistance: tolerance to pink root, fusarium. Similar: Valiant.
Yula (XPH 673) – Breeder and vendor: Asgrow Seed Co. Parentage: F1 hybrid, Idaho Agric. Expt. Sta. and Asgrow inbreds. Characteristics: very early onion for prompt marketing or limited storage; yields a good percentage of jumbos. Similar: Pronto S and Spanish types.
Z218PRR – Breeder: L.Kyle. Vendor: Neuman. Characteristics: yellow bulbs, short day hybrid. Resistance: pink root, bolting. 1989.
Z222PRR – Breeder: L.Kyle. Vendor: Neuman. Characteristics: yellow bulbs, short day, Grano type hybrid. 1989.
Z235PRR – Breeder: L.Kyle. Vendor: Neuman. Characteristics: yellow bulbs, early maturity, short day hybrid, Granex type. Resistance: pink root, bolting. 1989.
Z237 – Breeder: L.Kyle. Vendor: Neuman. Characteristics: yellow bulbs, early maturity, short day hybrid. Resistance: bolting. Similar: Z218. 1988.
Z238 – Breeder: L.Kyle. Vendor: Neuman. Characteristics: yellow bulbs, early maturity, short day hybrid. Resistance: bolting. 1988.
Z303 – Breeder: L.Kyle. Vendor: Neuman. Characteristics: early maturity, red flattened globe type. Resistance: pink root. 1988.
Z506 – Breeder: L.Kyle. Vendor: Neuman. Characteristics: white bulbs, early maturity, short day hybrid. Resistance: bolting. 1988.
Z507 – Breeder: L.Kyle. Vendor: Neuman. Characteristics: white bulbs, early maturity, short day hybrid. Resistance: pink root, bolting. 1988.
Z508 – Breeder: L.Kyle. Vendor: Neuman. Characteristics: white bulbs, early maturity, short day hybrid. Resistance: pink root. 1988.
Z508PRR – Breeder: L.Kyle. Vendor: Neuman. Characteristics: white flattened bulbs, short day hybrid. Resistance: pink root, bolting. 1989.
Z512 – Breeder: L.Kyle. Vendor: Neuman. Characteristics: white bulbs, early maturity, short day hybrid. 1988.
Z513 – Breeder: L.Kyle. Vendor: Neuman. Characteristics: selection from Early White Grano. 1988.
Zapotez – Breeder and vendor: Dakota. Characteristics: midseason, high yielding, white sweet Spanish type. Resistance: tolerance to pink root. Similar: Blanco Duro. 1992.
Zenith (PSX63788) – Breeder: R.Engle. Vendor: Petoseed. Characteristics: long day type, late maturity, globe shaped jumbo, white flesh, light brown scales. 1990.
Zorro (XPH 97329) – Breeder and vendor: Crookham. Parentage: P-USS x Crookham inbred. Resistance: Pink root. Similar: Celebrity. Adaptation: northwest U.S.
Zuni – Breeder and vendor: Dakota. Characteristics: midseason high yielding, white sweet Spanish type. Resistance: tolerance to pink root. Similar: Sterling. 1991.