Cucurbit Genetics Cooperative Report 7:58-59 (article 26) 1984 Thomas, C.E., A.N. Kishaba, J.D. McCreight, and P.E. Nugent USDA/ARS, U.S. Vegetable Laboratory, Charleston, SC 29407 (first and fourth authors), USDA/ARS, Boyden Entomological Laboratory, Riverside, CA 92521 (second author); and USDA/ARS, U.S. Agricultural Research Station, Salinas, CA 93915 (third author) Powdery mildew is a widespread and often […]
Melon Reports
1984 Melon Reports
Report No. 7 Melon (Cucumis melo) Evaluating downy mildew resistance in Cucumis melo L. Y. Cohen, H. Eyal, A. Cohen and C.E. Thomas (Israel and USA) CGC 7:38-40 (1984) Climacteric and nonclimacteric ripening in Cucumis melo Stephen Kendall and T. Ng (USA) CGC 7:41-42 (1984) Interaction of zucchini yellow mosaic virus strains and muskmelon lines H. Lecoq and […]
Development of Embryoid-like Structures from Cucumis melo L. Callus In Vitro
Cucurbit Genetics Cooperative Report 6:56-57 (article 29) 1983 H. Young, R. M. Skirvin and J. A. Juvick Department of Horticulture, University of Illinois, Urbana, IL 61801 Members of the Cucurbitaceae have been grown in tissue culture to yield callus cultures (3) and shoot tip cultures (2, 6). The subject has been partially reviewed by Bottino […]
Chiasma Frequency in Different Sex Forms of Muskmelon
Cucurbit Genetics Cooperative Report 6:54-56 (article 28) 1983 C. Ramachandran, V. S. Seshadri and R. A. Pai Divisions of Vegetable and Floriculture and Genetics, Indian Agricultural Research Institute, New Delhi-110 012- India The pairing behavior of chromosomes at meiosis is closely associated with recombination. Chiasma frequency is a cytological measure of such recombinations. The relationship […]
Two Alleles for Watermelon Mosaic Virus 1 Resistance in Melon
Cucurbit Genetics Cooperative Report 6:52-53 (article 27) 1983 M. Pitrat and H. Lecoq I. N. R. A., B. P. 94, 84140 Montfavet-Avignon, France Two sources of resistance to Watermelon Mosaic Virus 1 (WMV-1) have been used independently. In the U. S., Webb and Bohn (10) found some resistant (symptomless) plants in PI 180280 from India. […]
An Improved Method of BA Application for the Promotion for the Promotion of Fruit Set in Muskmelon
Cucurbit Genetics Cooperative Report 6:51 (article 26) 1983 Henry M. Munger and David P. Lane Cornell University, Ithaca, NY 14853 The artificial cytokinin N6-benzyladenine (BA) greatly improves the percentage of fruit set in hand-pollinated muskmelon (1). This effect is probably even more pronounced in situations where emasculation is involved or where pollinations are made by […]
Potential Sources of Sudden Wilt Resistance in Muskmelon
Cucurbit Genetics Cooperative Report 6:49-50 (article 25) 1983 J. D. McCreight U. S. Department of Agriculture, Agricultural Research Service, P. O. Box 5098, Salinas, CA 93915 Sudden wilt (Pythium ultimum and P. aphanidermatum) of muskmelon has been of increasing importance in California and in Arizona. The disease causes rapid wilting and collapse of the vines just prior […]
Linkage of Red Stem and Male Sterile-1 in Muskmelon
Cucurbit Genetics Cooperative Report 6:48 (article 24) 1983 J. D. McCreight U. S. Department of Agriculture, Agricultural Research Service, P. O. Box 5098, Salinas, CA 93915 The seedling marker gene red stem (3) was crossed with male sterile-1 (1) to determine the linkage relationship between these two loci. Three F2 families segregated 559 green, fertile:195 green, male sterile:221 red […]
Independent Assortment of Red Stem and Yellow Green in Muskmelon
Cucurbit Genetics Cooperative Report 6:47 (article 23) 1983 J. D. McCreight U. S. Department of Agriculture, Agricultural Research Service, P. O. Box 5098, Salinas, CA 93915 Five F2 and 15 repulsion phase backcross (BC) families were scored for red stem (2) and yellow green (3) seedling marker genes. Pooled segregation data indicate independent assortment between these two loci (Table […]
A Third Male Sterile Gene in Muskmelon
Cucurbit Genetics Cooperative Report 6:46 (article 22) 1983 J. D. McCreight and G. W. Elmstrom U. S. Department of Agriculture, Agricultural Research Service, P. O. Box 5098, Salinas, CA 93915 (first author) and IFAS, P. O. Box 388, Leesburg, FL 32748 (second author) A third male sterile gene was discovered in PI 321005 (a cross […]