摘要
斜纹夜蛾已成为影响大豆生产的世界性害虫,对野生大豆抗斜纹夜蛾资源进行鉴定可以拓宽大豆抗虫育种的遗传基础。采用室内喂养2日龄斜纹夜蛾幼虫的方法,以幼虫重和蛹重为指标,共鉴定了38份野生大豆资源对斜纹夜蛾的抗性。结果表明:室内饲喂后,幼虫重和蛹重在野生大豆种质间存在显著差异,并且二者间存在显著相关性。进一步分析结果表明,野生大豆抗虫性与百粒重存在极显著相关性。依据标准品种分级法对抗性鉴定结果进行划分,从供试的38份野生大豆资源中筛选出6个高抗种质和4个高感标准种质。
Common cutworm,Spodoptera litura Fabricius,has become one of the main pests for soybean throughout the world. The screening and identification of Glycine soja germplasm resistant to Spodoptera litura can broaden the genetic background for insect-resistance soybean breeding. In this study,thirty-eight Glycine soja accessions were evaluated for their resistance to Spodoptera litura in lab according to larval weight and pupal weight. The results showed that larval weight and pupal weight were all different among Glycine soja accessions,and moreover,larval weight was related to pupal weight. Further analysis showed that there was a certain correlation between resistance of Glycine soja and hundred-grain weight. According to standard-variety grading system,six materials were identified to be highly resistant to Spodoptera litura,and four were identified to be highly susceptible to Spodoptera litura.
出处
《吉林农业大学学报》
CAS
CSCD
北大核心
2017年第6期670-674,682,共6页
Journal of Jilin Agricultural University
基金
国家自然科学基金青年基金项目(31300282)
农业部野生资源保护与利用项目(09162130135252028)
关键词
野生大豆
斜纹夜蛾
抗性鉴定
Glycine soja
Spodoptera litura
resistance identification
