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摘要 為了明确哈茨木霉LTR-2拌种处理冬小麦的田间效果,为木霉拌种剂的推广应用提供依据,本试验于2016年-2018年连续3年,研究了哈茨木霉LTR-2拌种对小麦出苗率、幼苗生长、小麦纹枯病和茎基腐病发生情况和产量的影响,通过高通量测序和FUNGuild预测分析了木霉拌种对小麦根际土壤中真菌群落组成的影响。结果表明,哈茨木霉LTR-2拌种可以提高小麦的出苗率和冬前分蘖数;对小麦纹枯病的平均防效60%以上;对小麦茎基腐病的平均防效65%以上,优于6%戊唑醇悬浮种衣剂;与不拌种对照相比,哈茨木霉LTR-2拌种处理增产4.3%~634%,增产效果略高于6%戊唑醇悬浮种衣剂;木霉拌种可以降低小麦根际土壤中病原真菌的相对丰度,特别是土壤中镰孢属真菌的相对丰度。因此,哈茨木霉LTR-2可以作为化学拌种剂的绿色替代产品用于小麦生产。
关键词 哈茨木霉; 拌种; 冬小麦; 根际真菌群落
中图分类号: S 473
文献标识码: A
DOI: 10.16688/j.zwbh.2020409
Effects of seed dressing treatment with Trichoderma harzianum on the growth of winter wheat seedlings, soil borne diseases and rhizosphere fungal community
HU Jindong1, YANG Zaidong2, WU Yuanzheng1, WEI Yanli1, YANG Hetong1, LU Depeng3, LI Jishun1*
(1. Shandong Provincial Key Laboratory of Applied Microbiology, Institute of Ecology, Qilu University of Technology
(Shandong Academy of Sciences), Jinan 250103, China; 2. Shandong Luyan Quality Breeds Co., Ltd.,
Jinan 250100, China;
关键词 哈茨木霉; 拌种; 冬小麦; 根际真菌群落
中图分类号: S 473
文献标识码: A
DOI: 10.16688/j.zwbh.2020409
Effects of seed dressing treatment with Trichoderma harzianum on the growth of winter wheat seedlings, soil borne diseases and rhizosphere fungal community
HU Jindong1, YANG Zaidong2, WU Yuanzheng1, WEI Yanli1, YANG Hetong1, LU Depeng3, LI Jishun1*
(1. Shandong Provincial Key Laboratory of Applied Microbiology, Institute of Ecology, Qilu University of Technology
(Shandong Academy of Sciences), Jinan 250103, China; 2. Shandong Luyan Quality Breeds Co., Ltd.,
Jinan 250100, China;