Cucurbit Genetics Cooperative Report 2:46-47 (article 28) 1979 D. L. Visser and J. Franken Institute for Horticultural Plant Breeding, Wageningen, The Netherlands Several 10-year old seed samples of accessions of wild Cucumis species in the breeding collection of the Institute for Horticultural Plant Breeding did not germinate under standard conditions, which included heat treatments as used for […]
Other Genera & Species Reports
Disease Resistances in Some Wild Cucumis Species
Cucurbit Genetics Cooperative Report 2:44-45 (article 27) 1979 M. Pitrat and R. D. de Vaulx Station d’Amélioration des Plantes Maraîcherès, I.N.R.A., Domaine Saint Maurice, 84140 Montfavet-Avignon, France Cucumis species in collection at the Vegetable Plant Breeding Station of Montfavet-Avignon (France) were evaluated for resistance to natural infestation or artificial inoculation to some important diseases in France: […]
Mentor Pollen as a Tool in Interspecific Hybridization in Cucumis
Cucurbit Genetics Cooperative Report 2:43-44 (article 26) 1979 Emiel H. Oost and A. P. M. den Nijs Institute for Horticultural Plant Breeding, Wageningen, The Netherlands The African species Cucumis metuliferus carries resistance to root knot nematodes(Meloidogyne spp.), which would be an important asset for both melons and cucumbers. The species, however, could so far not be crossed with […]
Interspecific Hybridization of Cucumis
Cucurbit Genetics Cooperative Report 1:40 (article 37) 1978 R. W. Robinson and E. Kowalewski New York Agricultural Experiment Station, Geneva, NY 14456 Diallel reciprocal cross pollinations were made among cucumber, muskmelon, and l9 wild species of Cucumis. The only species that crossed with the cucumber was C. Hardwickii; and C. trigonus and C. callosus were the only species to cross with […]
Comparative Electrophoresis of Isozymes of Cucumis Species
Cucurbit Genetics Cooperative Report 1:39 (article 36) 1978 J. T. Puchalski, R. W. Robinson, and J. W. Shail New York Agricultural Experiment Station, Geneva, NY 14456 Electrophoretic patterns of esterase, peroxidase, and leucine aminopeptidase of 24 different Cucumis species were compared. Large differences between several species were found for all these enzyme systems, but some other species […]
Interspecific Crosses of Cucumis Species
Cucurbit Genetics Cooperative Report 1:39 (article 35) 1978 J. D. Norton Auburn University Agricultural Experiment Station, Auburn, AL 36830 Interspecific crosses among Cucumis melo, C. metuliferus, and C. anguria have been attempted over a ten year period. In greenhouse experiments one cross of C. melo x C. metuliferus was accomplished. Further attempts to make this cross resulted in an occasional fruit set with normal fruit […]
White Fly Resistance in Cucumis Species
Cucurbit Genetics Cooperative Report 1:38 (article 34) 1978 E. Kowalewski3 and R. W. Robinson New York State Agricultural Experiment Station, Geneva, NY 14456 Cucumis species were evaluated for resistance to natural infestation with white flies in the greenhouse. Scanning electron and stereoscope microscope studies were made to determine if white fly resistance is related to morphology or […]
Dormancy of Cucumis Species
Cucurbit Genetics Cooperative Report 1:36-37 (article 33) 1978 Claude Heit, R. W. Robinson, and W. Mishanec New York Agricultural Experiment Station, Geneva, NY 14456 Dormancy is seldom a serious problem with seed of cucumber and muskmelon. Freshly harvested seed may be dormant, but this can usually be easily overcome by removal of the seed coats […]
1978 Other Cucurbit Genera and Species
1978 Report No. 1 Other Genera and Species Dormancy of Cucumis species C. Heit, R.W. Robinson and W. Mishanec (USA) CGC 1:36-37 (1978) White fly resistance in Cucumis species E.Kowalewski and R.W. Robinson (USA) CGC 1:38 (1978) Interspecific crosses of Cucumis species J.D. Norton (USA) CGC 1:39 (1978) Comparative electrophoresis of isozymes of Cucumis species J.T. Puchalski, R.W. Robinson and J.W. Shail (USA) […]