期刊
HORTSCIENCE
卷 36, 期 1, 页码 120-124出版社
AMER SOC HORTICULTURAL SCIENCE
DOI: 10.21273/HORTSCI.36.1.120
关键词
Vitis rotundifolia; bees; entomophily; anemophily; fruit set; seed set; parthenocarpy
类别
Fruit set in the muscadine grape (Vitis rotundifolia Michx,) depended on insect cross-pollination, although flowers were well adapted for selfing. Pollinizer cultivars produced about half of their optimal fruit set when selfed, but cross-pollination was needed to reach an optimal fruit set of 33.7%, Eighty-one percent of the overall fruit set in pistillate vines was attributed to insect cross-pollination; wind played only a small role. Diminished fruit set and fewer seeds per berry occurred in cultivars receiving no effective cross-pollination. Components of fruit quality were not profoundly affected by the pollination treatments, although seed set and berry weight in pistillate cultivars was lower in the absence of cross-pollination. Parthenocarpy was rare, except in 'Fry Seedless', Muscadine production throughout the southeastern United States depends on cross-pollination by indigenous insects, particularly bees. To ensure consistently high yields, bees must have sale access to flowers and their nesting sites must be preserved.
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