Biology, asked by Amanshaikh6080, 10 months ago

what is the difference between self fertilization and self pollination​

Answers

Answered by do29293p7nz8o
1

Explanation:

  1. Self-pollination is when pollen from the same plant arrives at the stigma of a flower (in flowering plants) or at the ovule (in gymnosperms). 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.

  • Autogamy, or self-fertilization, refers to the fusion of two gametes that come from one individual. Autogamy is predominantly observed in the form of self-pollination, a reproductive mechanism employed by many flowering plants. However, species of protists have also been observed using autogamy as a means of reproduction. Flowering plants engage in autogamy regularly, while the protists that engage in autogamy only do so in stressful environments.
Answered by anuradha1039
0

Answer:

Pollination is the transfer of pollen from anther to stigma . This may be from the anther to stigma . If it occurs on another flower in same plant it is referred as self pollination.

Fertilization is the union of the sperm nucleus with an egg nucleus. This self pollination may or may not result in self fertilization..

Hope it helped..

Similar questions