How to distinguish cross-pollinated, self-pollinated and cross-pollinated plants?

1. Cross pollination: Cross pollination between different plants, different flowers and different clones.

2. Self-pollination: In the same flower, the pollen of stamens falls on the stigma of pistil.

3. Cross-pollinated plants: One plant can be self-pollinated or cross-pollinated, while the other two pollination methods can only accept pollen from plants with different genotypes (cross-pollination) or pollen from their own flowers (self-pollination).

Second, the characteristics are different.

1, Cross-pollination: Because the offspring produced by cross-pollination are rich in heredity and strong in adaptability, plants have produced some ways to adapt to cross-pollination in the process of evolution.

2. Self-pollination: both flowers are bisexual and mature at the same time; The flower organs are well protected, other pollen is not easy to fly in, the flowering time is short, and the flowers can be closed for pollination.

3. Cross-pollinated plants: The particularity of cross-pollinated plants can be said to improve its survival probability. Under natural conditions, plants are mainly self-pollinated, but some flowers are cross-pollinated.

Third, different pollination media.

1, cross pollination: wind or insects.

2. Self-pollination: pollination can be completed by itself without media.

3. Cross-pollinated plants: including wind power and insects.

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