Biology, asked by ananyadubey2013, 1 year ago

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Question:-
Explain the process of autogamy and it's types.

Answers

Answered by Anonymous
5

hiii

1. Autogamy (Self-pollination):

It is the kind of pollination in which the pollen from the anthers of a flower is transferred to the stigma of the same flower, e.g., wheat, rice, pea, etc.

Autogamy is further classified as:

(i) Cleistogamy In some plants, flowers never open up and the anthers dehisce inside these closed flowers to ensure pollination. Thus, cleistogamous flowers are invariably autogamous as there is no chance of cross-pollination. These flowers produce assured seed sets even in the absence of pollinators, e.g., Oxalis, Viola, etc.

(ii) Homogamy In this method, both the anthers and the stigma mature at the same time, e.g., Mirabilis.

2. Geitonogamy:

It is a kind of pollination where the pollen grains from the anther of the flower are transferred to the stigma of another flower borne on the same plant but at different branches. It usually occurs in plants, which show monoecious condition, e.g., Cucurbita.

3. Xeno-gamy (Cross-Pollination):

It involves the transfer of pollen grains from the flower of one plant to the stigma of the flower of another plant. This is the only type of pollination which brings genetically different types of pollen grains to the stigma during pollination, e.g., papaya, maize, etc.

hope this answer helpful u


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Answered by Bartwal
10

Hey dude here is your answer✅

Autogamy is the process of self fertilization in plants.The pollen of the plant is transferred to its own stigma and ovules and fertilization occurs .Many plants have evolved and adaptedo ro the autogamy fertilization method.

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