Preparation of traditional Chinese medicine-chitosan seed coating agent substrate by blending-crosslinking method and evaluation of its biological properties

doi:10.14088/j.cnki.issn0439-8114.2025.08.030

Abstract

Abstract: Active ingredients of traditional Chinese medicine with antibacterial and growth-promoting effects were compounded with chitosan, supplemented with polyvinyl alcohol (PVA) and glycerol as functional additives, and a high-performance biomass seed coating agent composite substrate system was successfully constructed using the blending-crosslinking technique.Comprehensive analysis based on four indicators, namely water solubility, water absorption rate, tensile strength, and water permeability rate, indicated that the ZG4J4 sample exhibited the best overall performance; the composition of the ZG4J4 sample was traditional Chinese medicine-chitosan, glycerol, and polyvinyl alcohol (PVA) at a volume ratio of 25∶2∶100. The ZG4J4 sample possessed characteristics such as stable structure, good water solubility, and strong thermal stability. The seed germination rate, germination potential, and germination index of the ZG4J4 coating group were 95%, 90%, and 15.726, respectively, all higher than those of the tebuconazole coating group and the uncoated control group; this demonstrated that the ZG4J4 sample significantly promoted seed germination and was an excellent substrate material for corn seed coating agent.

Key words: blending-crosslinking, traditional Chinese medicine-chitosan, seed coating agent substrate, biological properties, coating

CLC Number:

S131

SUN Yun-di, XIAO Yi-ling, HUANG De-zhi. Preparation of traditional Chinese medicine-chitosan seed coating agent substrate by blending-crosslinking method and evaluation of its biological properties[J]. HUBEI AGRICULTURAL SCIENCES, 2025, 64(8): 197-204.

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