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International Journal of Carbohydrate Chemistry
Volume 2012 (2012), Article ID 104565, 5 pages
http://dx.doi.org/10.1155/2012/104565
Research Article

Application of Bioactive Coatings Based on Chitosan for Soybean Seed Protection

School of Resource & Environmental Engineering and Key Laboratory of Hubei Province for Mineral Resources Processing and Environment, Wuhan University of Technology, Wuhan 430070, China

Received 6 December 2011; Revised 7 March 2012; Accepted 18 March 2012

Academic Editor: José A. Lopes da Silva

Copyright © 2012 Defang Zeng et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Soybean seeds suffer attacks of various pests that result in a decreased yield in northeastern China. Until recently, people use pesticides such as insecticides to achieve the goal of controlling pests. Chitosan extracted from deacetylation of chitin is promising candidates as a seed-coating agent to control agrotis ypsilon, soybean pod borer, and soybean aphid effectively. An experimental study on influences of chitosan with different concentrations on pest controlling and soybean growth was made in the paper. Coating based on chitosan was used as a feeding deterrent and for enhancing the germination and quality of soybean seeds. Results indicated that all chitosan coating had a significant effect on antifeeding against pests; with the increasing concentration, antifeedant rate (AR) were increased obviously, especially when in the concentration of 5%, santifeedant rate of agrotis ypsilon, soybean pod borer, and soybean aphid reached 82.89%, 87.24%, and 80.21%, respectively. Also chitosan coating increased seed germination, plant growth, and soybean yield efficiently, especially when, in the concentration of 5%, the yield was increased by about 20% compared with CK. The application of chitosan in soybean seed coated is an appropriate option to control pests replacing high-toxicity pesticides and enhance soybean yield.