Different Resistance of Non-bitter Cucumbers to Tetranychus urticae in the Netherlands and the USA

Cucurbit Genetics Cooperative Report 6:27-28 (article 14) 1983 O. M. B. de Ponti, G. G. Kennedy, and F. Gould Institute for Horticultural Plant Breeding, P.O. Box 16, 6700 AA Wageningen, The Netherlands (first author); North Carolina State University, Raleigh, NC 27650 (second and third authors) Opinions on the relation between the bitter principle cucurbitacin-C and […]

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Intermediary Inheritance of Glabrousness (gl) in Cucumber

Cucurbit Genetics Cooperative Report 6:8-9 (article 4) 1983 H. Inggamer and O.M.B. de Ponti Institute for Horticultural Plant Breeding, P.O.B. 16, 6700 AA Wageningen, The Netherlands In order to improve the biological control of the glasshouse whitefly (Trialeurodes vaporariorum) with the parasitic wasp Encarsia formosa, glabrous cucumber mutants were introduced from the USSR and the USA (1). The […]

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The Identity of Genes for Glabrousness in Cucumis sativus L.

Cucurbit Genetics Cooperative Report 3:14 (article 8) 1980 H. Inggamer and O.M.B. de Ponti Institute for Horticultural Plant Breeding, Wageningen, The Netherlands The occurrence of glabrous cucumber has been reported from the USSR and the USA. In the USSR the cucumbers in question are the spontaneous mutants Odnostebelnyi 33 and Mayak 422, which were found at […]

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Development and Release of Breeding Lines of Cucumber with Resistance to the Twospotted Spider Mite, Tetranychus urticae Koch

Cucurbit Genetics Cooperative Report 2:6-7 (article 3) 1979 o. M. B. de Ponti Institute for Horticultural Plant Breeding, Wageningen, The Netherlands Based on a thorough study of the host-parasite relationship using cucumber varieties with different levels of resistance to the twospotted spider mite, two resistance tests were developed: a laboratory test (1) measuring acceptance and […]

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Breeding Glabrous Cucumber Varieties to Improve the Biological Control of the Glasshouse Whitefly

Cucurbit Genetics Cooperative Report 2:5 (article 2) 1979 O. M. B. de Ponti Institute for Horticultural Plant Breeding, Wageningen, The Netherlands On glasshouse tomatoes in the Netherlands, the biological control of the glasshouse whitefly (Trialeurodes vaporariorum Westwood) with the parasitic wasp (Encarsia formosa Gahan) is successfully applied on an ever increasing scale. On glasshouse cucumbers, however, despite repeated and […]

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