Self-pollination
407234
213889068
2008-05-21T05:53:45Z
Sidhekin
2449838
Reverted 1 edit by [[Special:Contributions/69.19.14.36|69.19.14.36]] identified as [[WP:VAND|vandalism]] to last revision by [[User:125.239.116.62|125.239.116.62]]. using [[WP:TWINKLE|TW]]
'''Self-pollination''' is a form of [[pollination]] that can occur when a [[flower]] has both [[stamen]] and a [[carpel]] in which the [[cultivar]] or [[species]] is [[Self-fertilization|self fertile]] and the stamens and the sticky [[carpel|stigma]] of the carpel contact each other to accomplish pollination. The term is inaccurately used in many cases where an outside [[pollinator]] is actually required; such plants are merely self fertile, or self [[pollenizer|pollenizing]].
Few plants actually self pollinate. The mechanism is seen most often in some [[legume]]s such as [[peanut]]s. In another legume, [[Soybean]]s, the flowers open and remain receptive to insect cross pollination during the day; if this is not accomplished, the flowers self pollinate as they are closing.
Self pollination, or more generally self pollenizing, limits the variety of progeny and may [[Inbreeding depression|depress plant vigor]]. However, self pollenizing can be advantageous, allowing plants to spread beyond the range of suitable pollinators or produce offspring in areas where pollinator populations have been [[pollinator decline|greatly reduced]] or are naturally variable.
==See also==
*[[Cleistogamy]]
[[Category:Pollination]]
{{botany-stub}}
[[de:Selbstbestäubung]]
[[nl:Zelfbestuiving]]
[[pl:Samopylność]]
[[uk:Самозапилення]]