Pollen dimorphism and dioecy in <i>Vitis aestivalis</i>
DOI:
https://doi.org/10.5073/vitis.1988.27.143-146Keywords:
pollen, morphology, flower, sexuality, Vitis, CanadaAbstract
- Problems of low production and sterile pollen in varieties of Vitis vinifera may be tracable to their ancestral relations with dioecious wild grapes.
- Like V. riparia, the wild summer grape V. aestivalis has dimorphic male and female flowers; but unlike V. riparia it also has dimorphic pollen grains with the pollen from the female flower being significantly smaller.
- It seems fairly certain that V. aestivalis is truly dioecious.
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