Cucurbit Genetics Cooperative Report 9:104-106 (article 34) 1986 Weeden, N.F., R.W. Robinson and J.W. Shail Dept. of Horticultural Sciences, New York Agricultural Experiment Station, Geneva, NU 14456 Considerable isozyme polymorphism has been identified in cultivars of Cucurbita pepo (1,2,3,4), and a correlation between the particular activity bands and fruit types was noted by Ignart and […]
R. W. Robinson
Cucurbitacin Concentrations in Different Plant Parts of Cucurbita Species as a Function of Age.
Cucurbit Genetics Cooperative Report 8:71-73 (Article 27) 1985 Jaworski, A., P. M. Gorski*, S. Shannon, and R. W. Robinson Department of Horticultural Science, New York State Agricultural Experiment Station, Geneva, NY 14456 Cucurbitacins (Cucs) are of concern to breeders due to their relation to insect resistance and fruit bitterness. When evaluating lines for Cucs, it […]
Rapid TLC and HPLC Test for Cucurbitacins
Cucurbit Genetics Cooperative Report 8:69-70 (Article 26) 1985 Gorski, P. M.*, A. Jaworski, S. Shannon and R. W. Robinson Department of Horticultural Science, New York State Agricultural Experiment Station, Geneva, NY 14456 Recently, there have been reports (2,4) of serious illness and litigation due to a low incidence of a gene for bitter fruit in […]
Trisomic Identification of Linkage Groups of Cucurbita
Cucurbit Genetics Cooperative Report 7:96 (article 43) 1984 Graham, J.D., N.F. Weeden and R.W. Robinson Department of Horticultural Sciences, New York State Agricultural Experiment Station, Geneva, NY 14456 Bemis (1) synthesized trisomic stocks of Cucurbita, having 40 chromosomes of C. moschata and one from C. palmata. The five different trisomics we obtained from him are […]
Linkage between an Isozyme Locus and One of the Genes Controlling Resistance to Watermelon Mosaic Virus 2 in Cucurbita ecuadorensis
Cucurbit Genetics Cooperative Report 7:86-87 (article 38) 1984 Weeden, N.F., R.W. Robinson and F.Ignart* Dept. Horticultural Sciences, New York Agricultural Experiment Station, Geneva NY 14456 Resistance to watermelon mosaic virus 2 (WMV-2) has been found in Cucurbita ecuadorensis (2). The resistant phenotype appears to be controlled by more than one locus (1), but little is […]
Influence of Temperature and Humidity on Longevity of Squash Pollen
Cucurbit Genetics Cooperative Report 6:91 (article 46) 1983 Yong-Jian Wang and R. W. Robinson Seed and Vegetable Sciences Department, New York State Agricultural Experiment Station, Geneva, NY 14456 It would be convenient in squash breeding to store pollen for extended periods, particularly with late maturing or photoperiodic germplasm that does not flower sufficiently early to […]
A Cucumber Mutant with Increased Hypocotyl and Internode Length
Cucurbit Genetics Cooperative Report 4:19-20 (article 9) 1981 R. W. Robinson and J. W. Shail New York State Agricultural Experiment Station, Geneva, NY 14456 A cucumber plant with a three-fold increase in hypocotyl length was found in the F2 generation after treatment of seed of ‘Lemon’ with thermal neutron radiation. Discrete segregation occurred in the […]
Vegetable Improvement Newsletter No. 22
February 1980 Compiled by H.M. Munger, Cornell University, Ithaca, New York 1. Some Germplasm of Rheum rhaponticum and Related Species David W. Davis Dept. of Horticultural Science and Landscape Architecture, University of Minnesota, St. Paul, MN 55108 The University of Minnesota has for many years maintained a sizeable collection of rhubarb types brought together by the late […]
Pollen Receptivity of Different Areas of the Stigma in Cucumber
Cucurbit Genetics Cooperative Report 3:25 (article 14) 1980 R.W. Robinson and D.F. Heffernan New York State Agricultural Experiment Station, Geneva, NY 14456 Pollen was placed with a dissecting needle on different areas of ‘Wisconsin SMR 18’ stigmas to determine the area of greatest receptivity. Five different areas of the stigma were pollinated including (1) the […]
Rosette, A Spontaneous Cucumber Mutant Arising from Cucumber-Muskmelon Mentor Pollination
Cucurbit Genetics Cooperative Report 3:4 (article 2) 1980 A.C. de Ruiter and B.J. van der Knap DeRuiterzonen Seed Co., Bleiswijk, The Netherlands R.W. Robinson New York State Agricultural Experiment Station, Station, Geneva, NY 14456 An interesting variant, given the acronym “megurk” from the combined Dutch words for cucumber and muskmelon, was obtained when cucumber plants […]