Self-pollination
Enlarge text Shrink text-
Topic
- Work cat.: Sweet, Heather R. The influence of pollinators on the maintenance of mixed mating in a population of the blue columbine, Aquilegia coerulea (Ranunculaceae), 2007:abstract (... two major modes of selfing; autogamy (selfing within a flower) and geitonogamy (selfing between flowers on the same plant))
- McGraw-Hill dictionary of scientific and technical terms, 2003(self-pollination: transfer of pollen from the anther to the stigma of the same flower or of another flower on the same plant)
- Yin, Yun-fu. The effect of bud self pollination, open flower self pollination, and cross pollination on the field characteristics of broccoli progenies, 1977.
- Lindgren, Dag. The relationship between self-fertilization, empty seeds and seeds originating from selfing as a consequence of polyembryony, 1975.
- Kerwin, Maureen Ann. Pollen and pistil effects on pollen germination and tube growth in selfing and outcrossing populations of Clarkia tembloriensis (Onagraceae) and their hybrids, 1997.
- Ophrys_apifera_flower2.jpg:
- derivative work: Esculapio (talk)
Self-pollination is a form of pollination in which pollen arrives at the stigma of a flower (in flowering plants) or at the ovule (in gymnosperms) of the same plant. The term cross-pollination is used for the opposite case, where pollen from one plant moves to a different plant. There are two types of self-pollination: in autogamy, pollen is transferred to the stigma of the same flower; in geitonogamy, pollen is transferred from the anther of one flower to the stigma of another flower on the same flowering plant, or from microsporangium to ovule within a single (monoecious) gymnosperm. Some plants have mechanisms that ensure autogamy, such as flowers that do not open (cleistogamy), or stamens that move to come into contact with the stigma. The term selfing that is often used as a synonym is not limited to self-pollination, but also applies to other types of self-fertilization.
Read more on Wikipedia >