In this test, rice seed were treated by three kinds chitosan in different glutinosity. The third kind chitosan promoted the growth of rice seed markedly, especially to their roots.

• 用三种不同粘度的甲壳胺（其中1、3号为虾壳制品、2号为蟹壳制品）处理水稻种子，其中3号对水稻种子有明显促进生长作用，特别是对根的生长促进作用更强