Cucurbit Genetics Cooperative Report 2:36 (article 21) 1979 Brenda K. Fulks, J. C. Scheerens, and W. P. Bemis University of Arizona, Tucson, AZ 85721 Sex expression in Cucurbita species including C. Foetidissima, the Buffalo gourd, have been considered as stable breeding monoecious species. Antherless and male sterile plants were described by Curtis (1). A population of C. foetidissima grown by Curtis […]
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Interspecific Cross Between Cucurbita pepo and C. martinezii
Cucurbit Genetics Cooperative Report 2:35 (article 20) 1979 R. D. de Vaulx and M. Pitrat Station d’Amélioration des Plantes Maraîchères, I.N.R.A., Domaine Saint Maurice, 84140 Montfavet-Avignon, France Powdery mildew, cucumber mosaic virus (CMV), and watermelon mosaic virus (WMV) are important and common diseases of Cucurbita pepo in France. High levels of resistance have not been described in […]
Attempts to Cross Cucurbita moschata (Duch.) Poir. ‘Butternut’ and C. pepo L. ‘Delicata’
Cucurbit Genetics Cooperative Report 2:32-34 (article 19) 1979 J. R. Baggett Department of Horticulture, Oregon State University, Corvallis, OR 97331 Breeders have long been interested in interspecific crosses among major Cucurbita species. Whitaker (12) reviewed the research in this area of breeding. They concluded that C. moschata occupies a central position among the annual species and can be crossed with […]
Race 2 Anthracnose Resistance in a Watermelon Line With a Pale Leaf Character
Cucurbit Genetics Cooperative Report 2:29-30 (article 18) 1979 B. B. Rhodes Edisto Experiment Station, Blackville, SC 29817 Hadwiger and Hall (1) reported increased growth of Colletotrichum orbiculare on the dark green striped rind area of ‘Garrisonian’ watermelon fruits. No other report relating this disease to the pigmentation of the watermelon fruit or vine is known. A pale […]
Preliminary Report on Association of Diabrotica Resistance and Morphological Characters in Watermelon
Cucurbit Genetics Cooperative Report 2:28 (article 17) 1979 B. B. Rhodes Edisto Experiment Station, Blackville, SC 29817 Chambliss and Cuthbert (1) determined that resistance to Diabrotica in watermelon was controlled by a single recessive gene. No association between this gene and other genes has been reported. We are currently investigating the assortment of genes for Diabrotica resistance, dwarf habit, […]
Growing Seedless Hybrid (triploid) Watermelons by Direct Seeding
Cucurbit Genetics Cooperative Report 2:27 (article 16) 1979 H. H. Partridge Munday Vegetable Growers Co-op, Munday, TX 76371 To be successful in growing seedless hybrid (triploid) watermelons by direct seeding, it is necessary to alter cultural practices normally used in growing the common diploid watermelon. Many growers have failed in their attempts to grow triploids […]
Improvement of Watermelon with Polyploids
Cucurbit Genetics Cooperative Report 2:25-26 (article 15) 1979 0. J. Eigsti 17305 SR4, R. R. 1, Goshen, IN 46526 Numerous polyploid species are important crops that show superiority over their diploid progenitors, and natural polyploid species exhibit a much wider range of adaptation than their related diploids (6). In both cases, the polyploids have attained […]
1978 Cucurbit Genetics Cooperative Membership Directory
Adams, H. Northrup, King and Company, Post Office Box 1406, Woodland, CA 95695. Breeding commercial cultivars. Angell, F. A.L. Castle, Inc., Post Office Box 279, Hollister, CA 95023. Cucumbers, squash, melons – breeding, genetics, variety development. Armstrong, G.M. Department of Plant Pathology, Experiment Station, Experiment, GA 30212. Wilt reactions (Fusarium oxysporum f. sp.). Azhar, Mohammad. 1850 […]
1978 Stocks and Germplasm Desired or For Exchange
Cucurbit Genetics Cooperative Report 1:43-45 (article 39) 1978 Stocks Desired J. M. Crall Watermelon lines with gummy stem blight resistance for crossing with the most advanced lines in our progeny selection program. T. P. M. den Nijs In research for resistance to several cucumber diseases (notably Cucumber Green MOttle Mosaic virus, black root rot caused […]
Gene Nomenclature Rules for the Cucurbitaceae
Cucurbit Genetics Cooperative Report 1:41-42 (article 38) 1978 R. W. Robinson New York Agricultural Experiment Station, Geneva, NY 14456 The Pickling Cucumber Improvement Committee voted unanimously on October 18, 1977, to adopt the proposed (1) nomenclature rules for genes of the Cucurbitaceae. Discussion at the annual PCIC meeting brought out the following considerations: Rule 1 states […]