Self-sterile

Self-sterile A plant not capable of reproducing with its own pollen. Semi-double A flower with only a few stamens converted to petals; a flower with less than twice the normal number of petals.

Muscadines come in self-fertile and self-sterile lines. The best fruits are from the self-sterile vines; to assure pollination you have to grow a pollinizing vine, too.

Generally, apples, crab apples, pears, plums, apricots, cherry plums and bush cherries should be considered self-sterile, that is, they can be fertilized by their own pollen. Self-sterile fruit trees must have a source of pollen within 500 m.

heterothallic. The condition of being self-sterile, requiring a partner for sexual reproduction. (15) heterothallism. The phenomenon in which sexual reproduction requires the involvement of two different thalli. (16) ...

Definition as written by Terry: Hybrid that is self-sterile and usually cross-sterile due to infertile pollen or undeveloped pistils. Add a definition to this term Return to the Gardenology homepage ...

Though I admire the straight species, I love the cultivar 'Winterthur', which has brighter red leaves and more abundant fruit. However, since the cultivar is probably self-sterile, it is wise to plant another V.

See also: Plant, Sterile, Growing, Produce, Spring