Cucurbit Genetics Cooperative Report 5:44-45 (article 22) 1982 A.P.M. den Nijs and N.J.D. Veldhuyzen van Zanten Institute for Horticultural Plant Breeding, P.O. Box 16, Wageningen, The Netherlands Zucchini squash is grown in the Netherlands in glasshouses in spring and fall. The crop has limited importance so far (annual sales less than a million guilders), but […]
Month: July 1982
Sources of Resistance or Tolerance to Viruses in Accessions of Cucurbita maxima
Cucurbit Genetics Cooperative Report 5:46-47 (article 23) 1982 R. Provvidenti New York State Agricultural Experiment Station, Cornell University, Geneva, New York 14456 Sources of resistance to cucumber mosaic virus (CMV) and watermelon mosaic virus 2 (WMV-2) , and tolerance to watermelon mosaic virus 1 (WMV-1) were recently found in three foreign accessions of Cucurbita maxima. Resistance […]
On the Silvery-Leaf Trait in Cucurbita pepo L.
Cucurbit Genetics Cooperative Report Volume 5:48-50 (article 24) 1982 O. Shifriss Department of Horticulture and Forestry, Cook College, Rutgers University, New Brunswick, NJ 08903 Recent observations and breeding data suggest that there exists a silvery-leaf (SL) trait whose expression is subject of marked genetic and non-genetic variations, that the genetic variants include M / M for mottled leaves (2) […]
In vitro Culture of Embryos of Cucumis zeyheri Sond. (2n=24)
Cucurbit Genetics Cooperative Report 5:54-56 (article 26) 1982 J.B.M. Custers Institute for Horticultural Plant Breeding, P.O., Box 15, Wageningen, The Netherlands A. Khatun Bangladesh Jute Research Institute, Dacca-17, Bangladesh It has been shown previously that embryos from the cross Cucumis zeyheri* (Gene Bank no. 0181) x C. Metuliferus (Gbn 1734) stopped growth during cotyledon development and seeds with such […]
Comparison of Seed Coat Development and Composition in Normal and Hull-less Strains of Pumpkin (Cucurbita pepo L.)
Cucurbit Genetics Cooperative Report 5: 51-52 (article 25) 1982 S.G. Stuart and J.B. Loy University of New Hampshire, Durham, NH 03824 Pumpkin seeds normally develop a well-defined, five-zoned seed coat or testa (1) by ten to fifteen days post-anthesis (2). In 1934, Tschermak-Seysenegg reported a ‘naked-seeded’ or hull-less mutant in pumpkin which did not develop […]
Inheritance of Resistance to Cucumber Green Mottle Mosaic Virus (Cgm) in Cucumis anguria L.
Cucurbit Genetics Cooperative Report 5:57-58 (article 27) 1982 A.P.M. den Nijs Institute for Horticultural Plant Breeding, P.O. Box 16, Wageningen, The Netherlands Cucumber green mottle mosaic virus (Cgm), first described by Ainsworth (1), causes significant losses in the glasshouse culture of cucumbers in Western Europe and Japan (3, 5). Strict phytosanitary measures are necessary to […]
Rectification of the Names of Certain Accessions of the IVT-Cucumis Collection
Cucurbit Genetics Cooperative Report 5:59-60 (article 28) 1982 H.Q. Varekamp, D.L. Visser and A.P.M. den Nijs Institute for Horticultural Plant Breeding (IVT), P.O. Box 16, Wageningen, The Netherlands During last summer we were fortunate enough to have the assistance of the Royal Botanic Gardens at Kew to check the taxonomic determinations of our Cucumis species collection. We […]
1982 Cucurbit Genetics Cooperative Membership Directory
Adams, Howard. Northrup, King and Co., Box 1406, Woodland, CA 95695 Adeniji, Adeoye A. P.O. Box 12465, Ibadan, Nigeria, West Africa Ahsan, A. Shoaib. Seria; Section, Library, Indian Agricultural Research Institute, New Delhi 110012, India Alexabdrova, Maria. Institute for Vegetable Crops, “Maritza” 32, Bresovsko Shosse Plovdiv, Bulgaria Angell, Fred. A.L. Castle,. Inc. P.O. Box 279, […]
Vegetable Improvement Newsletter No. 24
February 1982 Compiled by H.M. Munger, Cornell University, Ithaca, New York 1. Responses to Spacing of Spacemaster Cucumber H.M. Munger, R. Washek, and R.W. Riker Departments of Plant Breeding and Vegetable Crops, Cornell University, Ithaca, NY 14853 Spacemaster, essentially a dwarf version of Tablegreen 65, is characterized by a short hypocotyl in the seedling stage, […]
Cucumber Shoot Tip Growth on 9 Nitrogen Sources in in vitro Culture
Cucurbit Genetics Cooperative Report 5:10-11 (article 5) 1982 Robert D. Locy and Todd C. Wehner North Carolina State University, Raleigh, NC 27650 Previous research (2) indicated that cotyledon explants formed adventitious shoots in culture whereas hypocotyl explants did not. A possible explanation for that is that hypocotyl explants must rely primarily on nitrogen supplied from […]