Cucurbit Genetics Cooperative Report 15:31-32 (article 11) 1992 N.P.S. Dhillon Punjab Agricultural University, Vegetable Research Station, Jalandhar – 144 001, India The role of bitterness (caused by cucurbitacins) in cucumber resistance to twospotted spider mite (Tetranychus urticae) is not conclusive. North American researchers reported that bitterness caused resistance to spider mite (2, 3). However, in […]
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Use of Reproduction Factor and Gall Index in Determining Resistance in Cucumis spp.
Cucurbit Genetics Cooperative Report 15:28-30 (article 10) 1992 Todd C. Wehner, S. Alan Walters and Kenneth R. Barker Department of Horticultural Science, North Carolina State University, Raleigh, NC 27695-7609, Department of Plant Pathology, North Carolina State University, Raleigh, 27695 According to Taylor and Sasser (4), nematode reproduction can be used to measure root-knot nematode resistance, […]
Development of a Seedling Test for Resistance to Gummy Stem Blight in Cucumber
Cucurbit Genetics Cooperative Report 15:23-27 (article 9) 1992 Zoila G. Abad and Todd C. Wehner Department of Horticultural Science, Box 7609, North Carolina State University, Raleigh, NC 27695-7609 Gummy stem blight, caused by Didymella bryoniae and possibly by Phoma exigua, is the second most important pathogen of field grown cucumber (Cucumis sativus L.) in North […]
Screening Cucumber for Resistance to Belly Rot Caused by Rhizoctonia solani
Cucurbit Genetics Cooperative Report 15:19-21 (article 8) 1992 Todd C. Wehner, Michael S. Uchneat and Rufus R. Horton, Jr. Department of Horticultural Science, North Carolina State University, Raleigh, NC 27695-7609 Belly rot caused by Rhizoctonia solani Kuhn (Ag-4) is one of the more important cucumber (Cucumis sativus L.) diseases in the southeastern United States. Crop […]
The Significance of Some Traits and Their Combinations in the Usage of U.S. Cucumber
Cucurbit Genetics Cooperative Report 15:17-18 (article 7) 1992 Henry M. Munger Department of Plant Breeding, Cornell University, Ithica, NY 14853 The excellent history of U.S. cucumber improvement by Wehner and Robinson (1) prompts me to make some corrections and add some thoughts about the importance of the right combination of traits as contrasted with improvement […]
Correlation Between Parents and F1 Progeny in Earliness Heterosis and the Estimation of Traits Limits of Parents
Cucurbit Genetics Cooperative Report 15:13-16 (article 6) 1992 Hongwen Cui, Yongtao Qi, Jianhui Liu and Zhongbo Ren Department of Horticulture, Northwestern Agricultural University, Yangling, Shaanxi 172100, P.R. China Cucumber (Cucumis sativus L.) is one of the important summer vegetables in China. There is an urgent requirement for early cultivars of cucumber for use in plastic […]
Some Relationships of Seed Production with Parthenocarpy and Relative Humidity in the Cucumber
Cucurbit Genetics Cooperative Report 15:11-12 (article 5) 1992 Nick E. Fanourakis and Eva E. Tzifaki Technological Educational Institute, Heraklion Crete 71500 Greece, Institute of Viticulture Vegetable Crops and Floriculture, Hereklion, Crete, 71110 Greece An important advantage of the cucumber plant that makes it suitable for breeding and genetic studies is its ability to produce many […]
Survey of Cucumber Cultivars Grown in North Carolina
Cucurbit Genetics Cooperative Report 15:9-10 (article 4) 1992 Jonathan R. Schultheis Department of Horticultural Science, North Carolina State University, Raleigh, NC 27695-7609 A survey of North Carolina cucumber growers was administered via mail in January and February, 1991 for the 1990 crop of pickling and fresh-market types. The survey encompassed 15 counties, comprising over 90% […]
Cucumber Germplasm Resources in Southwest China
Cucurbit Genetics Cooperative Report 15:7-8 (article 3) 1992 Si-Lin Yang Department of Horticulture, Southwest Agricultural University, CongQing, Sichuan, 60316, People’s Republic of China The majority of Chinese cucumber cultivars of the outdoor type have been grown for fresh consumption in China for well over 2000 years. Only in recent history were the greenhouse and pickling […]
Phylogenetic Relationships Among Several African Cucumis Species: A Working Evolutionary Hypothesis
Cucurbit Genetics Cooperative Report 15:4-6 (article 2) 1992 J.E. Staub and L.D. Knerr Vegetable Crops Research, USDA/ARS, Department of Horticulture, University of Wisconsin, Madison, WI 53706 Phylogenetic models of the genus Cucumis have been constructed based on variation in morphology and geography, cucurbitacins, flavonoids, cytological studies and chromosome banding patterns, cross-compatibility, isozymes, and nuclear DNA. […]