Report no. 9 Squash and Pumpkin (Cucurbita spp.) Cucurbita fraterna, the closest wild relative and progenitor of C. pepo Thomas C. Andres (USA) CGC 10:69-71 (1987) Hybridization of Cucurbita foetidissima with . pedatifolia, C. radicans, and C. ficifolia Thomas C. Andres (USA) CGC 10:72-73 (1987) Relationship of Cucurbita scabridifolia to C. foetidissima and C. pedatifolia: A case of natural interspecific hybridization Thomas C. Andres (USA) CGC 10:74-75 […]
Month: July 1987
A Green Corolla Mutant in Cucurbita pepo
Cucurbit Genetics Cooperative Report 10:103 (article 53) 1987 Theodore H. Superak Harris Moran Seed Company, 3760 Buffalo Road, Rochester, NY 14624 During the summer of 1986, an F2 population of Cucurbita pepo was observed to segregate for a new flower mutant. The mutant had a green, leaf-like corolla in both male and female flowers. Early […]
Precocious Fruit Pigmentation in BwB+Plants of Cucurbita pepo L.
Cucurbit Genetics Cooperative Report 10:100-102 (article 52) 1987 O. Shifriss 21 Walter Ave., Highland Park, NJ 08904 T.H. Superak Harris-Moran Seed Co., 3670 Buffalo Rd., Rochester, N.Y. 14624 A BwBw line of ‘Table King’, B+B+, background was developed in 1979. Gene Bw is a weak allele of B (1). The fruits of the BwBw line […]
Notes on Squash Breeding
Cucurbit Genetics Cooperative Report 10:93-99 (article 51) 1987 O. Shifriss 21 Walter Ave., Highland Park, NJ 08904 Interspecific hybridization (11). The cross C. pepo x C. moschata is important from both theoretical and practical points of view. The natural reproductive isolation between these species is not as strong as that between other species of Cucurbita. […]
Anther and Ovule Culture of Cucurbita
Cucurbit Genetics Cooperative Report 10:92 (article 50) 1987 J. W. Shail and R. W. Robinson Horticultural Sciences Department, New York State Agricultural Experiment Station, Geneva, NY 14456 Previous attempts to grow plants from cultured anthers have been successful for cucumber (3) and muskmelon (2) but not for squash (1). We found that squash pollen did […]
A source of Genes for Improved Fruit Color and Large Fruit Size in Cucurbita moschata
Cucurbit Genetics Cooperative Report 10:91 (article 49) 1987 R. W. Robinson, J. W. Shail, and G. Moriarty Horticultural Sciences Department, New York State Agricultural Experiment Station, Geneva, NY 14456 PI 287531, an introduction from Naples, Italy of the cultivar Long Neopolitan, was included in the 1980 planting of Cucurbita maxima at the North East Regional […]
Inheritance of Internal Fruit Color in an Interspecific Cross
Cucurbit Genetics Cooperative Report 10:90 (article 48) 1987 R. W. Robinson and J. W. Shail Horticultural Sciences Department, New York State Agricultural Experiment Station, Geneva, New York Cucurbita ecuadorensis, which has white flesh color, was crossed with C. maxima cv. Buttercup, which has deep orange flesh due primarily to [beta]- carotene. Fruit of the interspecific […]
Genetic Variability for Compatibility of an Interspecific Cross
Cucurbit Genetics Cooperative Report 10:88-89 (article 47) 1987 R. W. Robinson and J. W. Shail Horticultural Sciences Department, New York State Agricultural Experiment Station, Geneva, NY 14456 The cross Cucurbita pepo x C. ecuadorensis, which is of interest for breeding squash for multiple disease resistance, was first made by Washek (2). The cross is usually […]
Downy Mildew Resistance in Cucurbita
Cucurbit Genetics Cooperative Report 10:87 (article 46) 1987 R. W. Robinson Horticultural Sciences Department, New York State Agricultural Experiment Station, Geneva, NY C. A. John ¹ Castle Seed Co., Homestead, Florida 33031 Cucurbita ecuadorensis and C. okeechobeensis are generally considered to be not very closely related. They were placed in different groups, when Cucurbita species […]
Novel Variation in an Interspecific Cross
Cucurbit Genetics Cooperative Report 10:85-86 (article 45) 1987 R. W. Robinson Horticultural Sciences Department, New York State Agricultural Experiment Station, Geneva, NY 14456 An unusually large number of different chlorophyll deficient mutants was observed in breeding lines derived from the interspecific cross, Cucurbita maxima x C. ecuadorensis. One F2 population segregated 147 normal : 18 […]