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 […]
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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 […]
Watermelon: Breeding for Resistance to Mycosphaerella citrullina and Colletotrichum lagenarium
Cucurbit Genetics Cooperative Report 1:24 (article 23) 1978 J. D. Norton Auburn University Agricultural Experiment Station, Auburn, AL 36830 Severe crop losses and reduced yields of melons have resulted from gummy stem blight Mycosphaerella citrullina in certain fields in Alabama. Although the damage seemed to be more widespread in the Gulf Coast area, there have been frequent […]
A Watermelon Bulk Population with Resistance to Cucumber Beetles
Cucurbit Genetics Cooperative Report 1:23-24 (article 22) 1978 O. L. Chambliss and J. D. Norton Auburn University Agricultural Experiment Station, Auburn, AL 36830 A bulk population of cucumber beetle resistant watermelon has been developed from resistant single plant selection grown in minimum isolation and allowed to open-pollinate for three generations. The original population was grown […]
Potential Uses of Micropropagation for Cucurbits
Cucurbit Genetics Cooperative Report 1:21 (article 21) 1978 L. R. Barnes, F. D. Cochran, R. L. Mott and W. R. Henderson North Carolina State University, Raleigh, NC 27650 Plant tissue culture offers a potential tool for rapid clonal propagation of most herbaceous plants. For plant breeders, these techniques would allow the rapid multiplication of a […]
Tolerance of Melon to Watermelon Mosaic Virus II
Cucurbit Genetics Cooperative Report 1:20 (article 20) 1978 M. Pitrat Station d’Amelioration des Plantes Maraicheres, I.N.R.A., Domaine Saint Maurice, 84140 Montfavet-Avignon (France) Cucumber mosaic (CMV) is a very common and severe virus on melon in the Southeast of France. While observing different lines in the field to study their resistance, it appears that PI 161375 […]
Cantaloupe: Breeding for resistance to Mycosphaerella citrullina, Meloidogyne incognita acrita and Diaphania nitidalis
Cucurbit Genetics Cooperative Report 1:19 (article 19) 1978 J. D. Norton Auburn University Agricultural Experiment Station, Auburn, AL 36830 Multiple disease resistance, including resistance to M. citrullina has proven to be adequate for high yields of excellent quality fruit for ad-advanced breeding lines and released varieties. The Hollar and Company, Inc., Rocky Ford, Colorado, has exclusive right […]