Cucurbit Genetics Cooperative Report 15:59-61 (article 22) 1992 James D. McCreight U.S. Department of Agriculture, Agricultural Research SErvice, 1636 East Alisal Street, Salinas, CA 93901 Lettuce infectious yellows (LIY), a sweetpotato whitefly, Bemisia tabaci Genn., (SPWF) transmitted virus disease of melons, has been a problem in fall melon production in the lower desert valleys of […]
James D. McCreight
Pedigree of PI 414723 Melon
Cucurbit Genetics Cooperative Report 15:51-52 (article 17) 1992 James D. McCreight, G. Weston Bohn, and Albert N. Kishaba U.S. Department of Agriculture, Agricultural Research Service, 1636 East Alisal Street, Salinas, CA 93901 PI 414723 from India has received much attention from breeders, pathologist and entomologists for resistances to: zucchini yellow mosaic and watermelon mosaic viruses […]
Potential Sources of Resistance to Lettuce Infectious Yellows in Melon
Cucurbit Genetics Cooperative Report 14:51-52 (article 18) 1991 James D. McCreight U.S. Department of Agriculture, Agricultural Research Service, U.S. Agricultural Research Station, 1636 East Alisal Street, Salinas, CA 93905 Lettuce infectious yellows (LIY) is a sweetpotato whitefly, Bemesia tabaci (Genn.), transmitted virus disease that occurs in the lower deserts of California, Arizona, and Mexico (1). Foliar symptoms […]
Evidence of a Recessive Powdery Mildew Resistance Gene in Muskmelon PI 414723
Cucurbit Genetics Cooperative Report 7:45 (article 20) 1984 J. D. McCreight U.S. Department of Agriculture, Agricultural Research Service, P.O. Box 5098, Salinas, CA Plant Introduction (PI) 414723 (melon aphid, Aphis gossypii Glover, resistant inbred of PI 371795) is a source of aphid resistance (1) and zucchini yellow mosaic virus resistance in muskmelon. Observations of greenhouse […]
The Importance of Monitoring Races of Powdery Mildew on Muskmelon
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 […]
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 […]
A Long Internode Mutant in Muskmelon
Cucurbit Genetics Cooperative Report 6:45 (article 21) 1983 J. D. McCreight U. S. Department of Agriculture, Agricultural Research Service, P. O. Box 5098, Salinas, CA 93915 Abnormally long veined plants occurred in 7 of 10 F2 sib progenies from the 11th backcross generation of a cross of ‘PMR 45’ with aphid resistant 90234, derived from PI […]