中文摘要：

通过室内养虫鉴定,农艺性状考查和收获后单株考种,对194份栽培大豆进行了抗斜纹夜蛾的鉴定和评价。结果表明：在抗生性和抗选性上对斜纹夜蛾表现为高抗或抗的材料分别有77份和107份。194份品种在株高、主茎分枝数、单株粒数和单株粒重性状上表现出不同程度的耐害和补偿能力。大豆对斜纹夜蛾的抗生性与抗选性的相关性表现相对一致,而抗生性或抗选性与耐害性的表现无显著相关。在抗性鉴定的基础上,筛选出一批对斜纹夜蛾在3种抗性机制上均表现优异的大豆材料25份,为大豆抗虫遗传和育种提供新的抗源。

英文摘要：

The common cutworm is a major pest of soybean in the southern China.In this study,the insect bioassay was applied to evaluate the resistance of 194 soybean cultivars.Agronomic traits were measured after the leaf-feeding test and sampled at V6 growth stage and after the harvest,respectively.In the insect bioassay,there were 77 resistant soybean cultivars based on the antibiosis and 107 resistant soybean cultivars based on the antixenosis.In the tolerance test,the 194 soybean cultivars performed different tolerance.The correlation analysis was used to analyze the relationship of the three resistance mechanisms.The result showed that the antibiosis had extremely significant positive correlation with the antixenosis.However,neither the antibiosis nor antixenosis had significant positive correlation with the tolerance.Based on the resistant test,twenty-five elite soybean resistance germplasms were selected,which could be used as new resistant sources in soybean genetics and breeding.