What? what does it take to spread the seed?

In life, many plants grow by artificial planting, but some reliable wind and animals spread seeds, so what does it rely on to spread seeds?

1. Animal transmission

Plants that rely on animals to spread seeds include Xanthium sibiricum, Tribulus terrestris, Bidens bipinosa, mountain grape, pine, cherry, pine nut, chestnut and so on. Such as Bidens bipinnata, Xanthium sibiricum and other seeds have spiny hairs and barbs on the outside, which will adhere to the fur of animals as long as they are touched lightly. Most of the plants such as cherries and wild grapes have succulent fruits. After the fruits of these plants are eaten by birds, the seeds pass through the digestive tract and are excreted at will. Chestnuts and pine nuts will be taken home and stored by squirrels, some will be eaten, and the rest will take root and sprout in the coming year.

2. Wind propagation

The plants that rely on the wind to spread their seeds are dandelion, willow, poplar, maple and so on. the seeds of these plants are usually lighter and can be suspended in the air, and the wind can take them to the end of the sea. The seeds of some plants also grow some special structures suitable for flying with the help of the wind, such as the fine hairs on the seeds of cotton and willow, the umbrella-shaped hairs on the fruits of dandelions, and the winglike structures of pine, maple and elm seeds.

3. Water transmission

Plants that grow in or near the water usually use water power to spread seeds, such as coconut trees, water lilies and so on. When the fruit of the coconut tree is ripe, its shell is hard, like a boat drifting away with the sea. After being washed ashore by the tide, new coconut trees will grow. After ripening, the fruit of water lilies will slowly rot in the water, and the seeds covered with a spongy outer seed coat will float, drift on the water surface, and finally sink to the bottom of the water to take root and sprout.

4. Ejection propagation

Ejection means to eject seeds like cannonballs, such as rape, mustard, peas, soybeans, mung beans, sorrel, impatiens, and so on. The dry and hard skins of these plants often burst in the scorching sun, and the seeds are ejected into the distance like bullets flying out of the gun chamber. The most interesting of these is a plant called "spray melon", which falls off at the slightest touch when the melon is ripe and ejects the seeds from the top in an instant.