MySheen

The root of soybean

Published: 2024-11-06 Author: mysheen
Last Updated: 2024/11/06, The root system of soybean belongs to straight root. It can be divided into main root and lateral root, both of which have dense root hairs. The main part of the root is 5-20 cm in the soil, and the whole root system is approximately bell-shaped. There is symbiosis between rhizobium and soybean on soybean root. When soybean sprouts, rhizobium invades the root. When soybean grows the first compound leaf, root nodule is formed on soybean root, first is the main root, and then gradually spreads to lateral root. Nodules are produced by rod-shaped rhizobia with 1-2 flagella at one end. It is a kind of aerobic bacteria, which mainly lives near the earth.

The root system of soybean belongs to straight root. It can be divided into main root and lateral root, both of which have dense root hairs. The main part of the root is 5-20 cm in the soil, and the whole root system is approximately bell-shaped.

There is symbiosis between rhizobium and soybean on soybean root. When soybean sprouts, rhizobium invades the root. When soybean grows the first compound leaf, root nodule is formed on soybean root, first is the main root, and then gradually spreads to lateral root. Nodules are produced by rod-shaped rhizobia with 1-2 flagella at one end. It is a kind of aerobic bacteria, mainly growing on the root system 20 cm near the surface. The diameter of the nodule is generally 4-5 mm. It is green at birth, becomes light red gradually, and finally becomes dark brown. Rhizobium fixed free nitrogen in the air, in addition to self-supporting nitrogen nutrition, the excess part was supplied to the growth and development of soybean.

 
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