First, the method of plant mother:
Mother dandelion spreads the seeds with the wind. Mother Xanthium spreads seeds by hanging animals' fur with small thorns. Mother pea lets the peas jump away, that is, spreads the seeds by elasticity.
Second, the principle of plant propagation:
1. Wind propagation.
Plants spread by wind generally grow appendages shaped like wings or feathers. When the wind blows, these plants will take advantage of the wind and grow and multiply in the distance. Dandelion, poplar, willow, elm and maple spread in this way.
2, spread by animals.
Birds or other animals eat seeds into their stomachs, and because they can't be digested, they are discharged with feces and spread in all directions. Spreading by squirrels is spread by animals while carrying seeds. Animals with hairy bodies will carry the seeds of Xanthium sibiricum in the process of walking, thus spreading. The representative plants are cherry, pine cone and xanthium sibiricum.
3, spread by water.
Water-borne seeds, whose surface wax does not touch water (such as water lilies), and whose pericarp contains air cells, are less dense than water, can float on the water surface and spread through streams or ocean currents. Most plants in water or marshes rely on water to spread their seeds.
4. Autologous transmission.
The so-called self-propagation, and some cucurbits and pods, when the fruits are ripe and cracked, will produce ejection force to eject the seeds, such as common pods. The fruit or seed itself has weight, and when it is ripe, it will directly fall to the ground due to gravity, such as persimmon and olive. It is spread by the plant itself and does not depend on other media.
Extended information:
The Plant Mother has a Way is a poem, which uses personification to vividly express scientific knowledge in the form of verse, and its language is catchy. It is a popular science work that can never be tired of reading. This text vividly tells how three plant mothers, dandelion, Xanthium sibiricum and pea, spread their seeds.
The text "Mother Plants Has a Way" explores the mystery of mother plants spreading seeds. In fact, mother plants not only spread seeds, but also some plants prey on insects. There are all kinds of plants in nature, and there are many ways for plants to spread their seeds.
After learning the text "Plant Mother has a Way", I hope all the children can be conscientious people in life, become children who can observe and love thinking, and solve the unsolved mysteries of nature in the future.