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Screening of antagonistic Trichoderma strains and their application for controlling stalk rot in maize
Lu Zhixiang1; Tu Guangping2; Zhang Ting1; Li Yaqian1; Wang Xinhua1; Zhang Quanguo3; Song Wei1; Chen Jie1
2020
Source PublicationJOURNAL OF INTEGRATIVE AGRICULTURE
ISSN2095-3119
Volume19Issue:1Pages:145-152
AbstractMaize is one of the major crops in China, but maize stalk rot occurs nationwide and has become one of the major challenges in maize production in China. In order to find an environment-friendly and feasible technology to control this disease, a Trichoderma-based biocontrol agent was selected. Forty-eight strains with various inhibition activities to Fusarium graminearum, and Fusarium verticillioides were tested. A group of Trichoderma strains (DLY31, SG3403, DLY1303 and GDFS1009) were found to provide an inhibition rate to pathogen growth in vitro of over 70%. These strains also prevented pathogen infection over 65% and promoted the maize seedling growth for the main root in vivo by over 50%. Due to its advantage in antifungal activity against pathogens and promotion activity to maize, Trichoderma asperellum GDSF1009 was selected as the most promising strain of the biocontrol agent in the Trichoderma spectrum. Pot experiments showed that the Trichoderma agent at 2-3 g/pot could achieve the best control of seedling stalk rot and promotion of maize seedling growth. In the field experiments, 8-10 g/hole was able to achieve over 65% control to stalk rot, and yield increased by 2-11%. In the case of natural morbidity, the control efficiency ranged from 27.23 to 48.84%, and the rate of yield increase reached 11.70%, with a dosage of Trichoderma granules at 75 kg ha(-1). Based on these results, we concluded that the Trichoderma agent is a promising biocontrol approach to stalk rot in maize.
KeywordHARZIANUM stalk rot in maize biocontrol Trichoderma Fusarium granules
Indexed ByCSCD
Language英语
Funding Project[National Key Research and Development Program of China] ; [Key International Intergovernmental Scientific and Technological Innovation Cooperation Project, China] ; [National Natural Science Foundation of China] ; [Agriculture Research System of Shanghai, China] ; [earmarked fund for the China Agriculture Research System]
CSCD IDCSCD:6654735
Citation statistics
Cited Times:1[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/155939
Collection中国科学院金属研究所
Affiliation1.上海交通大学
2.中国科学院金属研究所
3.Hebei Acad Agr & Forestry Sci, Institute Cereal & Oil Crops, Shijiazhuang 050051, Hebei, Peoples R China
4.中国科学院亚热带农业生态研究所
Recommended Citation
GB/T 7714
Lu Zhixiang,Tu Guangping,Zhang Ting,et al. Screening of antagonistic Trichoderma strains and their application for controlling stalk rot in maize[J]. JOURNAL OF INTEGRATIVE AGRICULTURE,2020,19(1):145-152.
APA Lu Zhixiang.,Tu Guangping.,Zhang Ting.,Li Yaqian.,Wang Xinhua.,...&Chen Jie.(2020).Screening of antagonistic Trichoderma strains and their application for controlling stalk rot in maize.JOURNAL OF INTEGRATIVE AGRICULTURE,19(1),145-152.
MLA Lu Zhixiang,et al."Screening of antagonistic Trichoderma strains and their application for controlling stalk rot in maize".JOURNAL OF INTEGRATIVE AGRICULTURE 19.1(2020):145-152.
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