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 […]

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Effects of the White Spine Allele on Skin Toughness and Fruit Firmness in ‘Wisconsin SMR 18’ Cucumber

Cucurbit Genetics Cooperative Report 3:6-8 (article 4) 1980 B.F. George Heinz, U.S.A., Tracy, CA 95376 H.M. Munger Cornell University, Ithaca, NY 14853 The cream mature fruit color, associated with the white spine allele (b), is preferred by pickle processors over the orange mature fruit color associated with the black spine allele (B). However, many seedsmen […]

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The Influence of Temperature on Powdery Mildew Resistance in Cucumber

Cucurbit Genetics Cooperative Report 2:9-10 (article 5) 1979 H. M. Munger Departments of Plant Breeding and Vegetable Crops, Cornell University, Ithaca, NY 14853 In studying the inheritance of powdery mildew resistance in cucumber, we have repeatedly noticed that plants in the greenhouse with any given level of resistance show much more mildew during the winter […]

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Vegetable Improvement Newsletter No. 20

February 1978 Compiled by H.M. Munger, Cornell University, Ithaca, New York 1. Resistance in Sweet Corn to Colletotrichum graminocolum L.V. Gregory, L.J. Seybert, J.E. Ayers, and D.L. Garwood Departments of Plant Pathology and Horticulture, The Pennsylvania State University, University Park, Pennsylvania 16802 The inbreds PaIa453 ae du wx and PaIa5125 ae du wx were observed to differ in field reaction […]

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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 […]

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Vegetable Improvement Newsletter No. 19

February 1977 Compiled by H.M. Munger, Cornell University, Ithaca, New York 1. Growth Analysis of Dry Matter, Economic Bulb Yield and Protein Production of Several Varieties of Onion (Allium cepa L.) Gaafar Mohamedali Department of Plant Breeding, Cornell University, Ithaca, N.Y. Five field experiments were conducted in 1973-75 at East Ithaca and Freeville, New York with […]

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