Inheritance of firmness in raw cucumber (Cucumis sativus L.) fruit |
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| Authors: | Robert K. Peterson D. W. Davis R. E. Stucker W. M. Breene |
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| Affiliation: | (1) Present address: Department of Horticultural Science, University of Minnesota, St. Paul, Minnesota, USA;(2) Department of Landscape Architecture, University of Minnesota, St. Paul, Minnesota, USA;(3) Department of Agronomy and Plant Genetics, University of Minnesota, St. Paul, Minnesota, USA;(4) Department of Food Science and Nutrition, University of Minnesota, St. Paul, Minnesota, USA;(5) Department of Horticulture, University of Wisconsin, 53706 Madison, WI, USA |
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| Abstract: | Summary Inheritance of raw cucumber fruit texture (Magness-Taylor Fruit Pressure Tester firmness) was investigated over a 4-year period from 1971–1974. Results from 2 separate but related experiments suggested that firmness was quantitatively inherited with sufficient additive effects to permit gain from selection. In a selection study within 4 F2 populations derived from crosses between  firm (Chipper and Gy3) and soft (Mincu and Green F) fruit type cultivars, variation among and within F3 and F4 families was significant but overall family means were not significantly higher than the high parent in any of the 4 crosses. Narrow sense heritability estimates for fruit texture were 0.80 in the Mincu × Chipper population and 0.77 in the Green F × Chipper, Mincu × Gy3, and Gy3 × Green F crosses. In a separate experiment, generation means analysis was used to assess the mode of gene action in 2 crosses: Green F × Chipper, and Gy3 × Green F. Additive genetic effects accounted for 98.8% and 99.3% of the total genetic variation within each cross, respectively.Scientific Journal Series Paper No. 9794. |
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| Keywords: | Cucumis sativus selection for cucumber fruit texture heritability generation means analysis |
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