How are the seeds spread?
Plants tend to multiply in all imaginable and unthinkable ways, however, it is worth remembering that not only seeds are important for the further distribution of plants in a particular territory. Very important for cultivated plants is the environment and climatic conditions. Only in the presence of heat, moisture and oxygen the plant can develop. If at least one of these components is missing, the plant dies. So let's look at how seeds are spread.
Methods of spreading seeds
It is for this reason that many of the seeds tend to get into a suitable climate as quickly as possible. Biology is aware of at least eight ways to spread the seeds of cultivated plants. Consider each way how plant seeds spread.
- The first method of propagation of a seed is its external fitness and readiness for the fact that it will be transferred to a long distance. For example, a huge number of seeds have devices such as thorns or hooks, with which they can be attached to the clothing of a person or to the animal's fur and transported over distances.
- The second kind of seed is sticking. They are located in quite sticky berries of plants. Such berries are eaten by birds, and when they begin to peck at them, the seeds attach to feathers and travel very long distances on the bird.
- In addition, another not quite common way of how fruits and seeds spread is known. It lies in the fact that these plants grow near water bodies or even in the water. Seeds are mixed with dirt or water, and then transferred to the paws of animals or on people's shoes. Also similar seeds can stick to the paws of birds with dirt.
- In addition, there are plants that are eaten by animals. Eating a delicious filling, they do not think that many seeds stuck to their mouths together with this, and when they fly away to travel, the seeds are transported over long distances with them.
- However, one should not detract from human influence on the spread of wild plant seeds on the ground. We carry thousands of plants on our clothes, without even knowing it. For example, when we collect very small seeds, we often screen out those that do not fit in size or for any other reasons. It is fastened on our shoes or clothing and transported to distant lands.
- However, seeds can be scattered on the ground and wind. Seeds spread, thus, by air is quite self-sufficient. These are various fluffy devices that help the seed to control the flight. Some seeds even have small wings or parachute-like devices.
- The next category of seeds that spread independently is the so-called "swimmers." They move on a reservoir by means of a current of the river.
- There is also a special category of plants that explode to spread their seeds over distances. After full ripening occurs, the fruits of the plants dry out and burst, throwing seeds at a considerable radius.
Thus, the plants are distributed not only with the help of living beings, but independently.