Cucurbit Genetics Cooperative Report 11:29-32 (article 14) 1988 Jack E. Staub U.S.D.A. / A.R.S., Department of Horticulture, University of Wisconsin, Madison, WI 53706 Improvement of cucumber (Cucumis sativus var. sativus L.; hereafter referred to as sativus) for low temperature germination and emergence ability has been the focus of several research programs in the U.S.A. (1, […]
Month: July 1988
Evaluation of Fruit Quality in Cucumis sativus var. hardwickii (R.) Alef.-Derived Lines
Cucurbit Genetics Cooperative Report 11:25-28 (article 13) 1988 Jack E. Staub and Linda R. Frederick, U.S.D.A. / A.R.S. Department of Horticulture, University of Wisconsin, Madison, WI 53706 Breeding strategies designed to incorporate the sequential fruiting ability of Cucumis sativus var. hardwickii (R.) Alef. (hereafter referred to as hardwickii) into commercially acceptable cultivars (var. sativus L.) […]
Interaction of Cucurbitacin Genes
Cucurbit Genetics Cooperative Report 11:23-24 (article 12) 1988 R.W. Robinson, A. Jaworski, P.M. Gorski, and S. Shannon Horticultural Sciences Department, New York State Agricultural Experiment Station, Geneva, NY 14456 The Bt gene of Cucumis sativus L. has been reported to produce bitter fruits (1). We found that the bitterness is due to a quantitative, but […]
Improving the Level of Powdery Mildew Resistance in Cucumber
Cucurbit Genetics Cooperative Report 11:22 (article 11) 1988 Henry M. Munger Emerson Hall, Cornell University, Ithica, NY 14853 In attempting to raise the level of powdery mildew resistance ({MR) in ‘Poinsett’ cucumber, we have made use of several parents with some unexpected results. Initially crosses were made with ‘Spartan Salad’ 77-717 whose F1’s showed somewhat […]
Preinoculation peroxidase activity in cucumber leaves not associated with race 2 anthracnose resistance
Cucurbit Genetics Cooperative Report 11:20-21 (article 10) 1988 Linde, D.C. Department of Plant Pathology, University of Minnesota, St. Paul, MN 55108 Rhodes, B.B. Clemson University Edisto Research and Education Center, Blackville, SC 29817 Anthracnose, caused by the fungus Colletotrichum lagenarium (Pass.) Ell. and Halst., is one of the major foliar diseases of cucumbers. An inexpensive […]
Association of fasciation with opposite leaf arrangement
Cucurbit Genetics Cooperative Report 11:19 (article 9) 1988 R.W. Robinson Department of Horticultural Sciences, New York State Agricultural Experiment Station, Geneva, NY 14456 Fasciated cucumber plants develop a very broad main stem, with increased numbers of leaves, tendrils, and flowers per node. Yorty (2) suggested that two recessive genes were required to produce fasciation. An […]
Development of Tropical Gynoecious Lines in Cucumber
Cucurbit Genetics Cooperative Report 11:17-18 (article 8) 1988 T. A. More and V.S. Seshadri Division of Vegetable Crops, Indian Agricultural Research Institute, New Delhi – 110012, India Gynoecious sex expression has been responsible for phenomenal development and quicker exploitation of hybrid vigor in cucumber which has attained a high degree of perfection in U.S.A., Canada, […]
Number of Seeds per Mature Fruit for Different Types of Cucumber
Cucurbit Genetics Cooperative Report 11:15-16 (article 7) 1988 Todd C. Wehner and Rufus R. Horton, Jr. Department of Horticultural Science, North Carolina State University, Raleigh, NC 27695-7609 In a plant breeding program, it is useful to know the number of seeds per fruit to expect when plants are harvested at mature fruit stage. As a […]
Cluster Analysis of Environments for the U.S.A. Southern Cooperative Slicing Cucumber Trials
Cucurbit Genetics Cooperative Report 11:13-14 (article 6) 1988 Todd C. Wehner Department of Horticultural Science, North Carolina State University, Raleigh, NC 27695-7609 Plant breeders interested in developing slicing cucumbers for the southern U.S.A. often use the southern cooperative trials that cover many locations and seasons in that region. Trials use locations from Virginia (northeast corner […]
Survey of Cucumber Breeding Methods in the U.S.A.
Cucurbit Genetics Cooperative Report 11:9-12 (article 5) 1988 Todd C. Wehner Department of Horticultural Science, North Carolina State University, Raleigh, NC 27695-7609 In 1987, I surveyed public (state university and U.S. Dept. Agric.) and private (seed or processing companies) plant breeders assigned to the improvement of cucumber. The survey included questions on breeding objectives, selection […]