摘要
选用20个具有不同迟眼蕈蚊抗性的韭菜栽培品种,在迟眼蕈蚊发生高峰期对韭菜叶组织中的粗纤维、芳香油、可溶性蛋白、可溶性糖、色素、叶绿素a及游离氨基酸含量进行了测定,通过与韭菜抗虫性评价指标(虫口密度、受害植株比例和叶片被害指数)的相关分析,进行了韭菜生化物质含量与韭菜抗虫性的相互关系研究。结果表明,与感虫品种相比,抗虫品种中均有较低的芳香油、可溶性糖和游离氨基酸含量;抗虫品种较感虫品种有较高的粗纤维、可溶性蛋白、色素和叶绿素a含量。基于相关分析和逐步回归分析的韭菜抗虫性和生化指标间关系分析表明:芳香油、可溶性蛋白和游离氨基酸等3个生化指标与韭菜品种抗虫性有较为紧密的关系,其中又以芳香油含量与韭菜抗虫性的关系最为密切。
Twenty Chinese chives cultivars that showed different resistance to Bradysia odoriphage were selected to study the correlations between the pest resistance(based on 3 pest resistant index:pest density,percentage of infected plants and leaf suffering index)and the content of several physiological chemical substances,including coarse-fiber,naphtha,soluble sugar,soluble protein,pigment,chlorophl-a and dissociative amino acids.The results showed that the contents of naphths,soluble sugar and dissociative amino acids in the resistant cultivars appeared with lower content than those of the infective ones.But the contents of coarse-fiber,soluble protein,pigment and chlorophl-a in the resistant cultivars showed higher values than the infective ones.The results of correlative analysis showed that the contents of naphtha,soluble protein and dissociative amino acids displayed distinct correlations with the level of pest resistance.And the results of regression analysis also revealed that the content of naphtha might be the most important factor for the pest resistance.
出处
《中国蔬菜》
北大核心
2011年第12期42-45,共4页
China Vegetables
关键词
生化物质
韭菜
迟眼蕈蚊
相关分析
Chemical substance
Chinese chives cultivars
Bradysia odoriphage Yang et Zhang
Correlation analysis
