Soil application of Trichoderma asperellum GDFS1009 granules promotes growth and resistance to Fusarium graminearum in maize

作     者：HE An-le LIU Jia WANG Xin-hua ZHANG Quan-guo SONG Wei CHEN Jie 

作者机构：School of Agriculture and BiologyShanghai Jiao Tong University/State Key Laboratory of Microbial Metabolites/Key Laboratory of Urban Agriculture(South)Ministry of Agriculture Institute of Cereal and Oil CropsHebei Academy of Agriculture and Forestry Sciences 

出 版 物：《Journal of Integrative Agriculture》 (农业科学学报（英文版）)

年 卷 期：2019年第18卷第3期

页      面：599-606页

核心收录：

学科分类：09[农学] 0904[农学-植物保护] 090401[农学-植物病理学] 090402[农学-农业昆虫与害虫防治] 

基　　金：supported by the grants from the National Key Research and Development Program of China (2017YFD0200403, 2017YFD0201108, and 2017YFE0104900) the "948" Project of China (2016-X48) the National Natural Science Foundation of China (31750110455, 31872015) the earmarked fund for China Agricultural Research System (CARS-02-26) 

主　　题：Trichoderma asperellum maize Fusarium graminearum stalk rot biocontrol agent 

摘      要：Of diseases affecting maize(Zea mays), Fusarium graminearum is one of the most common pathogenic fungi that cause stalk rot. In the present study, the Trichoderma asperellum GDFS1009 strain was shown to be an effective biocontrol agent against stalk rot. In a confrontation culture test, Trichoderma strain displayed an approximately 60% inhibition rate on the mycelial growth of F. graminearum. In pot trials, the application of 2 g/pot of T. asperellum GDFS1009 granules had the best control effect on stalk rot at the seedling stage(up to 53.7%), while the average plant height and fresh weight were also significantly improved. Additionally when fertilizer was added at 8 g/pot, the application of 3 g/pot of Trichoderma granules had the best control effect on maize stalk rot(40.95%). In field trials, when inoculating F. graminearum alone, the disease index for inoculating was 62.45, but only 31.43 after treatment with T. asperellum GDFS1009 granules, suggesting a control efficiency of 49.67%. Furthermore, in a naturally F. graminearum-infected field, Trichoderma granules, when applied for 3 consecutive years, showed significant control of stalk rot and increased yields.