Research on cross-linked chitosan as film-forming agent in seed coating agent

doi:10.14088/j.cnki.issn0439-8114.2023.01.014

Abstract

Abstract: Different amounts of glutaraldehyde （0%, 1.5%, 3.0%, 6.0%, 9.0%） were used as crosslinking agents to cross-link chitosan solutions （1.0%, 1.5%, 2.0%, 2.5%） with different mass concentrations to explore the film forming and coating properties of cross-linked chitosan solutions and its effect on the germination rate of corn seeds. The results showed that the film forming and coating properties of crosslinked chitosan were greatly improved. The film formation time of 2.0wt.%-1.5% sample （i.e., 2.0% chitosan concentration, 1.5% glutaraldehyde crosslinking agent） was 9.6 min, the coating shedding rate was 8.4%, the coating uniformity was 91.8%, and the germination rate was 93%.

Key words: chitosan, crosslinking, seed coating agent, film-forming agent, germination rate

CLC Number:

TQ450.6

ZHANG Xian, CHENG Zhuang, WEN Zi-hui, ZHU Cai, WU Ying, GUO Cheng, LI Wei, QIN Cai-qin, DING Yu. Research on cross-linked chitosan as film-forming agent in seed coating agent[J]. HUBEI AGRICULTURAL SCIENCES, 2023, 62(1): 89-93.

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