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Incapable of self-fertilization.

self′-in′com·pat′i·bil′i·ty n.


(Botany) (of a plant) incapable of self-fertilization because its own pollen is prevented from germinating on the stigma or the pollen tube is blocked before it reaches the egg cell
ˌself-ˌincomˌpatiˈbility n
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References in periodicals archive ?
* POLLINATION: Yellow, cross-shaped collard flowers have both male and female parts that are self-incompatible. They require insect pollination from wasps, flies, or bees.
Nothocalais cuspidata is an early spring-flowering, nonclonal perennial member of the prairie flora that is primarily self-incompatible. Flowers were highly reflective in UV light and easily visible to pollinating halictid and solitary bees.
RNAase in style in gametophytic self-incompatible system (TAKAYAMA; ISOGAI, 2005) and glycoproteins in stigma cause self-incompatibility reaction (SI) in sporophytic system (HISCOCK; MCINNIS, 2003).
Most diploid tuber-bearing Solanum species are self-incompatible
In Europe and North America, honeybees are crucial to their agriculture because a number of their valuable crops are self-incompatible e.g.
In contrast, some other chrysanthemum breeders feel that it is unnecessary to make inflorescences emasculated during chrysanthemum hybridization breeding, as they think that chrysanthemum is a self-incompatible flower.
For example, plants within the family Asteraceae predominantly are self-incompatible; however, the family contains both outcrossing and selfing species (e.g., Lawrence, 1985; Lane, 1996; Nielsen et al., 2003; Heenan et al., 2005; Ortiz et al., 2006).
caryopsises dehiscent DNA fingerprinting drupe endocarp exocarp [F.sub.1] hybrid gamete gene homozygote inbred indehiscent mesocarp nut open-pollinated seeds parthenocarpy perfect pericarp pollen sac quantitative trait self-incompatible self-sterile tube nucleus zygote
Common buckwheat, the cultivated species, is a self-incompatible diploid species.
On the other hand, Uqroo2 was self-incompatible, that is, it did not accept self pollen.
Delph notes that other scientists had been troubled by the earlier hypothesis because dimorphism arose in some self-incompatible lineages.