Yam is a plant with fibrous root system, and its root system is not developed, and it is mostly distributed in the shallow layer of soil. However, to absorb water and nutrients, it can not extend down to the soil until the root system of yam grows to 20 cm, which can extend to 60-80 cm at most.

Characteristics of yam root system root system function

The main root system for yam to absorb water and nutrients is the seed root, and the role of tuber root is to absorb fertilizer and water in the deep soil and fix the tuber. In addition, the roots and lateral roots of the seeds usually have many hairs, which will continuously absorb water and nutrients to meet the needs of plant growth.

Root structure characteristics

The root system of Chinese yam is mainly composed of two kinds of rhizomes: seed root and tuber root. Generally, each plant has 12~23 seed roots. There are generally 500~2000 tuber roots per plant of long-column yam varieties, which shows that there are many root systems of yam.

Root appearance and pictures of Chinese yam

The seed root of Chinese yam is an adventitious root generated from the peripheral cells of the scattered vascular bundles in the base of the plant bud, which is linear, while the tuber root is white at the initial stage, turns brown at the later stage, and gradually dies with the growth of the tuber.