While all the leaves from one tree are lying on the ground, all the leaves from another tree next to it are falling off. remains green.

While some trees shed their leaves Why don’t some people throw?

Contrary to popular belief, all trees shed their leaves.

The time at which trees shed their leaves varies depending on their species and weather conditions. For example, some trees shed all their leaves in the fall, while others lose their leaves It is discarded after completion of the term.

At the same time, this process is determined by changes in the environment, such as temperature and hereditary factors. First of all, in this time of leaf loss, A group of cells in the area where the petiole connects to the stem begins to differentiate.

This area is called the fracture zone. In this process, in the fracture zone the walls of the cells weaken and the cells become smallerAs a result, the leaf breaks off from the weakened area.

The area where the leaf breaks off is like an open wound, making the plant vulnerable to disease and infection.

The cells at the site of the fracture form scar tissue to heal this open wound. Growth hormone, also called auxin, It slows down the formation of the fracture zone. The amount of auxin molecules is high in young leaves and begins to decrease as the leaf ages.

For this reason, the shedding process begins when the leaf matures. Plants drop their leaves; reduce the need for water, energy and nutrients and helps them survive cold and dry weather.

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