All organisms go through stages of growth, beginning with a simple stage until the organism develops into the final form in the final stage of growth. The plants also undergo stages during their growth, starting with the seed produced by the fertilization process. The seed then stores the food until it becomes full seed. Each seed on the embryo within it is responsible for the growth of the seed. This should remain away from heat and cold. There are two types of seeds; one embryo containing one embryo in it to produce one plant, several embryos to produce multiple plants, Button Plant production by type of seed.
Factors that help germinate the seed
Before entering the seed germination stages, we will mention the factors that help to grow it:
- Humidity: Moisture must be available in the soil so that the seed can drink water and begin to grow, and there should be a medium that helps to dissolve the nutrients to pass to all parts of the fetus. These parts are the buds and roots.
- Oxygen: It is important for the plant to breathe and is also important for the process of image representation.
- The temperature: Each type of seed temperature required to grow even the high temperature and cold as well as severe factors that prevent the growth of seeds of any kind and there are types need a specific temperature; for example, beans grow only at the temperature of 35 and do not grow above or below this degree .
Germination stages
To germinate the seed several stages are summarized as follows:
- The first stage is where the seed absorbs water, which increases its moisture and starts to multiply. This is where the enzymes that make the embryo begin to function, which opens the seed and the roots start to appear.
- Phase II: At this stage is analyzed food stored in the seed to simple materials and these materials are proteins and carbohydrates and others.
- Third stage: Here the plant begins to grow and appear on the surface of the earth and show some small leaves with the stem with the growth of roots underground so as to increase in size.
There are two types of germination:
- Aerobic germination: a form in which plants appear above the surface of the earth, showing leaves and fruits on the ground such as cherry and apple plant and many varieties that bear fruit on the tree.
- Ground germination: Unlike soil germination, the fruits remain underground and some leaves and small stems appear above the ground, such as potatoes and carrots.