Question

How is geitonogamy different from autogamy and xenogamy?

Answer 1

Answer:

Autogamy- transfer of pollen grain from anther to stigma of same flower.

Geitonogamy – transfer of pollen grains from anther to stigma of different flower of same plant. Geitonogamy is functionally cross-pollination involving a pollinating agent, genetically it is similar to autogamy since the pollen grains come from the same plant.

Xenogamy- transfer of pollen grain from anther to stigma of different plant’s flower of

same species.

Answer 2

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word autogamy mean self fertilization. this is a special type of self pollination in which an intersexual or top flower is pollinated through its own pollen. Autogamy is only possible when anther and stigma are close to each other and which has synchrony in pollen release and stigma respectively. It is frequently meet in unicellular organisms such as protozoan, protist.

autogamy in plant :- the plant which is capable to fertilize themselves rather than hybridize with another plants.

Autogamy occurs by three method:-

Namely-homogamy

Cliestogamy

Bud pollination