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Effects of Three Diphenyl-Ether Herbicides on Sclerotium rolfsii Sacc
Author(s): YANG Guang-ling, WANG Jin-xin, LIU Wei
Pages: 304-
307
Year: 2005
Issue:
2
Journal: JOURNAL OF AGRO-ENVIRONMENT SCIENCE
Keyword: 除草剂; 花生白绢病菌; 影响; 致病力;
Abstract: 室内条件下,研究了二苯醚类除草剂(三氟羧草醚、乙氧氟草醚和乳氟禾草灵)对花生白绢病菌的影响.结果表明,3种除草剂均能抑制白绢病菌的菌丝生长,其中以三氟羧草醚抑菌作用最明显,EC50值为 7.88 mg·L-1.3种除草剂对花生白绢病菌菌核的萌发无抑制作用.三氟羧草醚和乙氧氟草醚对菌丝体干重和菌核数量有较强的抑制作用,乳氟禾草灵作用较弱.温室条件下,接种经 3种除草剂处理白绢病菌后产生的菌核的致病力试验显示,乙氧氟草醚处理能降低病害的发生率,三氟羧草醚处理则能提高病害的发生率,乳氟禾草灵与对照相比没有差别.
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