Question

Mention the adaptation the plant have to ensure self pollination or autogamy

Answer 1

* the anther and stigma has to mature at the same time
*the flower should be bisexual

Answer 2

Answer:

These adaptations are Flower's unisexuality, Self-sterility, Dochogamy, Heterostyly, Heikogamy.

Explanation:

Flowers' Unisexuality:  Self-pollination is almost impossible in plants with unisexual blooms, and cross-pollination is unavoidable.

Self- Sterility: Pollen grains in some plants, such as orchids, have no effect and are thus sterile on the stigma of the same flower.

Dichogamy: When stamen and carpel do not mature at same time. There are two situations that occur: (i) when the stamens mature significantly sooner than the carpels, and  (ii) when the carpels mature before the anthers.

Heterostyly: In some flowers with unusual shapes, self-pollination is impossible. Long stamens with short styles, or short stamens with long styles, are seen on these flowers.

Heikogamy: Self-pollination is often prevented in bisexual flowers with stamens and carpels mature at the same time by erecting barriers between the two.

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