中国油料作物学报2018，Vol.40Issue(3)：413-419,7.DOI:10.7505/j.issn.1007-9084.2018.03.014
160个春大豆品种豆荚结构及其对食心虫抗性相关分析
Structure of soybean pod of 160 spring soybean varieties and analysis of resistance to Leguminivora glycinivorella
摘要
Abstract
In order to further analyze soybean structure mechanism of resistance to soybean pod borer Legumini-vora glycinivorella and define its quantitative indicators,160 spring soybean materials from northeast China were se-lected to study the characteristics of pod surface structure,forty-one of gradient varieties with single factor struc-ture characteristics were screened.The investigation of oviposition selecting of Leguminivora glycinivorella to soy-bean varieties with different pod hair and the newly hatched larvae boring in different varieties of pod shell were car-ried out respectively.The results showed that the frequency distributions of pod hair density,pod hair length,cu-ticular layer,subcutaneous thick cell layer,middle epidermis cell layer,inner wall cell layer thickness of 160 breeds showed certain regularities,which can be represented by equation models.Pod hair density had significant positive correlation to single pod egg deposition number.The greater the pod hair density,the more egg of Legumin-ivora glycinivorella on the pods,which was consistent with the Logistic equation Yeggs＝6.22/[(1 +exp(3.17-0.88X)].Significantly negative correlation existed between pod hair length and single-pod egg amount,which was consistent with the quadratic equation Yeggs＝-23.98+27.82X-6.89X2.When the length of pod hair was more than 2.00mm,the amount of eggs decreased with the increase of the length of pod hair.There was no signifi-cant correlation between the thickness of epidermal cuticle and the thickness of the subcutaneous thick-walled cell layer and the pod rate of newly hatched larvae.Though the thickness of mesocarp cell layer and endothecium cell layer was negatively correlated with the boring rate of newly hatched larvae and the exponential function curve equa-tion fitted Zboring rate＝142.94exp(-0.70X),Logistic equation Zboring rate＝103.64/[1+exp(-5.28+20.29X)],respectively.It showed that the thicker the mesocarp cell and endothecium cell layer,the stronger resistance to Le-guminivora glycinivorella.The results would provide scientific basis for breeding soybean varieties resistant to soy-bean pod borer and for evaluating insect resistance.关键词
大豆品种/大豆食心虫/豆荚结构/抗虫性/相关分析Key words
soybean variety/Leguminivora glycinivorella/soybean pod structure/insect resistance/correlation analysis分类
农业科技引用本文复制引用
吕德东,徐伟,胡英露,史树森..160个春大豆品种豆荚结构及其对食心虫抗性相关分析[J].中国油料作物学报,2018,40(3):413-419,7.基金项目
国家现代农业产业技术体系(CARS-04) （CARS-04）
