What are the ways pollen is spread

As we all know, flowers not only satisfy people's desire to appreciate, but are also a good way to express feelings. Whether it is a confession of love or visiting a patient, most people will choose to buy a bouquet of flowers. Different flowers have different meanings. Flowers seem beautiful and colorful, so how do they spread pollen? Let's follow the editor to learn in detail about the way flowers spread pollen.

Self-pollination: pollen from the stamen is transferred to the stigma of the same flower. Self-pollinating plants must have bisexual flowers, but plants with bisexual flowers do not necessarily self-pollinate, but are more likely to cross-pollinate. Soybeans, peas, barley, wheat, sesame, etc. are all self-pollinating.

Cross-pollination: Pollen from one flower is transferred to the stigma of another flower on the same plant, or pollen from one flower is transferred to the stigma of another flower on a different plant. Cross-pollination is more evolved than self-pollination because during self-pollination, the genetic differences between the reproductive cells of the male and female are smaller. Continuous self-pollination will cause the vitality of the offspring to decline. At present, there are still self-pollinating plants in nature. This is an adaptation phenomenon formed during the evolutionary process and is related to the reproduction of offspring. When conditions are not suitable for cross-pollination, plants can complete the reproduction process through self-pollination. Most plants in nature are self-pollinating, but some individuals are cross-pollinating. Self-pollination protects the pollen from some damage, such as being eaten by insects. Self-pollinating plants have stable characteristics.