安庆市第三代二化螟田间为害状况及水稻损失率的研究
Damages and yield lossing caused by the third generation of Chilo suppressalis (Walker)
肖满开1;王小平2;张生来2;孙旺应3;卢汪政3
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DOI:10.7679/j.issn.2095-1353.2000.081
作者单位:1.安微省安庆市农业局植保站,246001;2.安徽省怀宁县茶岭镇农技站,246100;3.安徽省怀宁县农业技术推广中心,246100
中文关键词:二化螟;为害状;损失率;防治
英文关键词:Chilo suppressalis(Walker);damages;yield lossing;control
中文摘要:本文阐述了 3代二化螟在双季晚稻上发生危害症状和出现的新特点 ,明确了各种受害症状均有产量损失 ,损失率为 12.85%~ 59.63% ;建立了田间宏观受害状与产量损失之间的关系 ,为产量损失调查提供了参考依据。导致减产的主要原因是结实率和千粒重显著降低。药剂防治试验、示范表
英文摘要:This paper described the damages by the third generation of Chilo suppressalis (Walker)in late rice and the new characters,and defined the relationships between every kind of the damages and the yield lossing,which were 12.85% —59.63%. This provid