Cucurbit Genetics Cooperative Report 1:33 (article 30) 1978 S. Shannon and R. W. Robinson New York Agricultural Experiment Station, Geneva, NY 14456 Problems have been encountered in the commercial production of hybrid seed of summer squash when recommended rates of ethephon application were used to inhibit staminate flower production on the maternal inbred parent. The […]
Squash & Pumpkin Reports
Gynoecious Sex Expression in Cucurbita Resulting from an Interspecific Cross
Cucurbit Genetics Cooperative Report 1:31-32 (article 29) 1978 R. W. Robinson, M. A. Boettger, and J. W. Shail New York Agricultural Experiment Station, Geneva, NY 14456 The ‘Buttercup’ and ‘Golden Delicious’ cultivars of Cucurbita maxima were crossed with the ‘Butternut’ and ‘Waltham Butternut’ cultivars of C. moschata. Each parent was monoecious, producing many more staminate than pistillate flowers. Each […]
Insect Associations with Cucurbita in Illinois
Cucurbit Genetics Cooperative Report 1:30 (article 28) 1978 A. M. Rhodes, W. L. Howe, R. L. Metcalf and P. Y. Lu University of Illinois, Urbana, IL 61801 For the past seven years we have evaluated the host preference of several insect species that were attracted to five cultivated and 14 mesophytic and xerophytic wild Cucurbita spp. The […]
Genetic Variation of Esterases and Peroxidases in an Interspecific Cucurbita Cross
Cucurbit Genetics Cooperative Report 1:29 (article 27) 1978 J. T. Puchalski, R. W. Robinson, and J. W. Shail New York Agricultural Experiment Station, Geneva, NY 14456 The aim of this preliminary study was to investigate the inheritance and linkage relations of multiple electrophoretic forms of esterases and peroxidases in an interspecific cross between Cucurbita moschata cv. ‘Butternut’ and C. […]
Comparative Electrophoretic Analysis of Isozymes in Cucurbita Species
Cucurbit Genetics Cooperative Report 1:28 (article 26) 1978 J. T. Puchalski and R. W. Robinson New York Agricultural Experiment Station, Geneva, NY 14456 A chemotaxonomic investigation of 19 different species of the genus; Cucurbita, including all five cultivated species, was made on the basis of isozymic composition. The multiple molecular forms of esterase, peroxidase, and leucine […]
Multiple Virus Resistance in Cucurbita species
Cucurbit Genetics Cooperative Report 1:26-27 (article 25) 1978 R. Provvidenti, R. W. Robinson and H. M. Munger New York Agricultural Experiment Station, Geneva NY 14456 Adequate levels of resistance to several viral diseases have not been found in cultivated Cucurbita species. Therefore, we tested wild species of the genus to determine if genes for virus resistance could […]
The Versatility of the Feral Buffalo Gourd, Cucurbita foetidissima HBK
Cucurbit Genetics Cooperative Report 1:25 (article 24) 1978 W. P. Bemis University of Arizona, Tucson, AZ 85721 A wild perennial gourd, native to the arid regions of Western North America may be the key to additional food and feed crops adapted to low water use agriculture. This plant is Cucurbita foetidissima HBK, the Buffalo gourd. It has […]
1978 Squash and Pumpkin Reports
Report No. 1 Squash and Pumpkin (Cucurbita spp.) The versatility of the feral buffalo gourd, Cucurbita foetidissima HBK W.P. Bemis (USA) CGC 1:25 (1978) Multiple virus resistance in Cucurbita species R. Provvidenti, R.W. Robinson and H.M. Munger (USA) CGC 1:26-27 (1978) Comparative electrophoretic analysis of isozymes in Cucurbita species J.R. Puchalski and R.W Robinson (Poland & USA) CGC 1:28 (1978) Genetic variation […]