activity of roots的用法和样例：
- The activity of roots was increased when the concentration was low, and it was inhibited when the concentration was high.Allelopathy of roots and tops of coriander was similar.
- The result shows that: Proper dose of Manganese mixed with seeds or spraying on the leaf can improve the bleeding intensity of the soybean plant, and also improve the ability of water absorbing and the activity of roots.
- The study of experiments of the effect ofinsect polysaccharide on the chlorophyll of rice leaves, the activity of roots, peroxidase content,soluble sugar content and soluble protein content.
- The result indicated that DPC could increase the content of IAA and Z+ZR in root system of peanut seedling,promote the growth of root system and increase activity of root system.
- But leaf color (SPAD) descended quickly.The roots grew stagnantly, root length and number of roots stopped increasing, the activity of root and root/shoot ratio descended quickly, and obviously.
但秧苗叶色(SPAD值)迅速下降, 地下部生长停滞, 根长、根数停止增加, 根系活力迅速下降, 根冠比明显降低。