What is the stem meaning of the plant What is the stem of the herb called

The stem is the central axis part of the plant body. It is erect or prostrate and has branches on the stem, and the apical growth is carried out by meristems at the apex of the branches. The stem generally differentiates into two parts, short nodes and long internodes.

The stem has the function of transporting nutrients and water and supporting leaves, flowers and fruits in a certain space. Some stems also have the functions of photosynthesis, nutrient storage and reproduction.

The main function of the stem is to transport the water and inorganic salts absorbed by the roots, as well as the organic matter produced by the leaves, to all parts of the plant body.

Details: The transport of water and inorganic salts is done by the ducts of the stem. Why do water and inorganic salts rise down the ducts?

This is due to the effect of root pressure and transpiration pulling of the leaves. Root pressure is a type of pressure created by the root that causes the solution to enter the catheter and rise along the wall of the catheter. If you cut off the stem of a sunflower or pecan close to the base, you can see that there is liquid flowing out of the wound, which is the result of root pressure.

The transpiration pull of the leaf is the force of the leaf to pull the water upwards when the leaf is constantly transpiring water, so that the water continues to rise along the duct.

The transport of organic matter is done by the sieve tube of the stem. The organic matter produced by the leaves is mainly transported to the various organs of the plant body through the sieve tube of the stem phloem. The organic matter conveyed in the sieve tube must be small in molecule and soluble in water.

Starch, protein, and fat must be broken down into small molecules of glucose, amino acids, glycerol, fatty acids, and other simple organic substances before they can be transduced. If the bark is destroyed on a large scale, the roots of the plant will die due to the lack of sufficient organic nutrients for a long time, which in turn will cause the death of the whole plant.

The stem of the herbaceous plant is called the herbaceous stem, which can transport the water absorbed by the roots of the plant to various positions such as the leaves, and transport the nutrients accumulated by the leaves through photosynthesis to the branches and roots to ensure the healthy growth of the herbaceous plant.

1. Herbaceous stems

The stem of the herbaceous plant is called the herbaceous stem, the xylem in the stem is not developed enough to make it soft and juicy, the function of the herbaceous stem is to transport the water absorbed by the roots to all positions of the plant, and can transport the nutrients absorbed by the leaves through photosynthesis to the branches and roots, so as to maintain the normal growth of the herbaceous plant.

2. Herbaceous plants

Herbaceous plants are a kind of plants with small plant size, short life span and weak support, which can be divided into three categories: annual, biennial and perennial, among which the annual herbaceous plant has the shortest growth cycle, and will bloom and seed before midsummer every year, ending its life, and the representative plants are wheat, onions, violets, etc.

3. Use

Herbaceous plants can not only be woven into many living utensils, such as building houses with bamboo in Yunnan region of China, but also prevent soil erosion and purify the air, at the same time, herbaceous plants such as wheat, corn, sorghum and other herbs can also be edible, but not all that can be eaten, such as tobacco leaves, etc., will affect human health.

4. Breeding methods

When cultivating herbaceous plants at home, it should be placed in a sunny, ventilated and breathable place, watered once every 1-2 days when the summer temperature is high, and pay attention to avoid exposure to the sun, you can use shade nets for the plants, and increase the amount of watering after the herbaceous plants grow buds, watering 1-2 times a day, so that the flowers can be larger.

The stem of the plant is the main part that connects the roots and leaves, and it has a variety of important physiological and ecological functions. One of the main functions of the stem is to provide mechanical support for the plant, allowing the plant to maintain a stable posture in natural environments such as wind and rain. In addition, the stem also functions as a transport system for plants, transporting water and nutrients from the roots to the leaves and flowers, while transporting the food produced from the leaves back to the roots.

Stems can also play an important role in photosynthesis, displaying the leaves in their proper position so that they can absorb sunlight to the maximum and photosynthesize. The stems can also undergo vegetative propagation, such as spreading or branching, which helps the plant to reproduce offspring.

The stem of the plant is one of the five major organs of the plant, and its function is to transfer the water and inorganic salts absorbed by the roots to the leaves and flowers, and transfer the nutrients formed by the photosynthesis of the leaves to other parts, mainly through the ducts inside the stem.

The stem tip is similar to the root tip and has the ability to grow indefinitely, and the stem tip continues to grow, successively producing leaves and lateral branches, except for a few underground stems, which together constitute a huge branch system of the aboveground part of the plant body.

The degree of stem development is closely related to the life cycle of the plant, and perennial woody plants have more developed stems than annual herbaceous plants. It is a vegetative organ, and the stem and root have a basically similar general structure, but are adapted to the two main functions of transport and support, and the stem shows many special structures that are different from the root.