Silicon-mediated rice plant resistance to the asiatic rice borer (Lepidoptera: Crambidae): Effects of silicon amendment and rice varietal resistance

文献类型: 外文期刊

第一作者: Han, Yongqiang

作者: Han, Yongqiang

作者机构:

关键词: boring behavior;Chilo suppressalis;plant resistance;rice;silicon

期刊名称:JOURNAL OF ECONOMIC ENTOMOLOGY ( 影响因子:2.381; 五年影响因子:2.568 )

ISSN:

年卷期:

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收录情况: SCI

摘要: The Asiatic rice borer, Chilo suppressalis (Walker) (Lepidoptera: Crambidae), is one of the most destructive pests in rice, Oryza sativa L., throughout Asian countries. The aim of this study was to investigate the potential of applied silicon in mediating rice plant resistance to C. suppressalis in a susceptible (Shanyou63) and a moderately resistant (Yanfeng47) rice cultivar. Silicon-treated plants showed significant increases in silicon content compared with the control. Silicon addition significantly decreased borer penetration, weight gain, and stem damage, and it prolonged penetration duration and larval development; some of the effects were manifested more strongly in the susceptible rice cultivar compared with the moderately resistant cultivar. Therefore, silicon amendment may contribute to the suppression of C. suppressalis directly through reduced feeding damage and performance and indirectly through increased exposure time of young larvae to natural enemies and control measures.

分类号: Q969.9

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