Cucurbit Genetics Cooperative Report 1:15 (article 14) 1978 R. W. Robinson New York Agricultural Experiment Station, Geneva, NY 14456 A search was made for spontaneous mutants among 30,030 plants of 13 cucumber cultivars. Several chlorophyll deficient mutants were found, each conditioned by a different single recessive gene. Surprisingly, male sterile mutants occurred in a frequency […]
R. W. Robinson
Pleiotropic Effects of the Glabrous Gene of the Cucumber
Cucurbit Genetics Cooperative Report 1:14 (article 13) 1978 R. W. Robinson New York Agricultural Experiment Station, Geneva, NY 14456 The glabrous (gl) gene of the cucumber was induced by thermal neutron seed treatment. It is a useful seedling marker gene, since the mutant is readily identified in the young seedling stage as well as at all […]
Mutagenic Experiments with the Cucumber
Cucurbit Genetics Cooperative Report 1:13 (article 12) 1978 R. W. Robinson New York Agricultural Experiment Station, Geneva, NY 14456 Chemical and irradiation treatments were applied to cucumber seed to induce gene mutations. Mutagenic agents and doses that were successful include 5,000 to 30,000¥ x- rays, 9 to 18 hours of thermal neutrons, 0.5 to 2% […]
Linkage of Male Sterility and Sex Expression Genes in Cucumber
Cucurbit Genetics Cooperative Report 1:13 (article 11) 1978 R. W. Robinson New York Agricultural Experiment Station, Geneva, NY 14456 A male sterile cucumber, obtained from N. Nakamura, was pollinated with the cultivar ‘Lemon’. Linkage was detected between male sterility and the m gene for monoecious vs. andromonoecious sex expression and the l locule number gene (Table 1). The male […]
Gene Linkage in the ‘Lemon’ Cucumber
Cucurbit Genetics Cooperative Report 1:12 (article 10) 1978 R. W. Robinson New York Agricultural Experiment Station, Geneva, NY 14456 The ‘Lemon’ cucumber is an interesting novelty. Named after its round, yellow fruit, it was apparently introduced in the early 1890’s. The slight resemblance of its fruit to a citrus gave a rise to an ingenious […]
Linkage relations of genes for tolerance to powdery mildew in cucumber
Cucurbit Genetics Cooperative Report 1:11 (article 9) 1978 R. W. Robinson New York Agricultural Experiment Station, Geneva, NY 14456 The F1 of powdery mildew tolerant ‘Ashley’ x susceptible ‘Lemon’ was susceptible to Sphaerotheca fuliginea. The F2 segregated 193 susceptible; 248 tolerant, in a good agreement (p = .5 -.7) with the 27:37 ratio expected if tolerance were […]
Fasciation in the Cucumber
Cucurbit Genetics Cooperative Report 1:11 (article 8) 1978 R. W. Robinson New York Agricultural Experiment Station, Geneva, NY 14456 Fasciated plants with wide, flattened stems and increased numbers of leaves, tendrils, and flowers per node, frequently occur in the cucumber cultivar ‘Lemon’ and other andromonoecious cucumber cultivars. Fasciation is associated with opposite leaf arrangement at […]
Association of Fruit Shape and Sex Expression in the Cucumber
Cucurbit Genetics Cooperative Report 1:10 (article 7) 1978 R. W. Robinson New York Agricultural Experiment Station, Geneva, NY 14456 It has been proposed that a single recessive gene (m) conditions andromonoecious sex expression, and a different but very closely linked locus governs round versus elongated fruit shape in the cucumber. I have never found a […]
Vegetable Improvement Newsletter No. 17
February 1975 Compiled by H.M. Munger, Cornell University, Ithaca, New York 1. Sungold or CW 198 Wax Bean M.H. Dickson New York State Agricultural Experiment Station, Geneva, N.Y. Sungold was released to the trade as CW 198 in February 1973. Sungold has been extensively tested in various parts of the country and has shown good […]
Vegetable Improvement Newsletter No. 12
February 1970 Compiled by H.M. Munger, Cornell University, Ithaca, New York 1. Presence of Third Strain of Lima Bean Downy Mildew R.E. Wester U.S. Department of Agriculture, Beltsville, Md. A third strain (strain “C”) of downy mildew of lima beans (Phytophthora phaseoli, Thaxt.) was discovered in the fall of 1969 on G 1 bush lima […]