论文部分内容阅读
本文利用离体叶砂基培养法,在实验室条件下系统研究了花生属中6个拟直立型组野生种、2个花生组野生种(副对照)和1个栽培品种(对照)对花生锈病、褐斑病和黑斑病的抗性反应.对感染频率、菌斑直径、叶片脱落率、叶面坏死率和产孢指数等五种抗性成分综合分析的结果表明,所选用的野生种对锈病均表现免疫;在6个拟直立型组的野生种中,A.sp.30003、A.sp.9990和A.sp.30126未表现黑斑病症状,对褐斑病呈过敏性反应;A.sp.9993、A.sp.11462和A.sp.30134等三个种在主要抗性成分上,也明显地优于花生组的野生种及栽培种.文中还对拟直立型组的应用潜力及实验室条件下抗性成分的选择作了简要讨论.
In this paper, the leaves of sand-based culture in vitro, under laboratory conditions systematically studied the peanut in the six quasi-erect vertical group of wild species, two peanut group of wild species (control) and a cultivars (control) on peanut Rust resistance, brown spot and black spot.The results of comprehensive analysis of five resistant components including infection frequency, plaque diameter, leaf exfoliation rate, leaf necrosis rate and sporulation index showed that the selected wild Species showed immunity against the rust; Among the wild plants of the 6 quasi-erect groups, A.sp.30003, A.sp.9990 and A.sp.30126 did not show symptoms of black spot and were allergic to brown spot Reaction; A.sp.9993, A.sp.11462 and A.sp.30134 and other three kinds of the main resistance components, but also significantly better than the peanut group of wild species and cultivars.This article also proposed pseudo-erect The application potential of the group and the selection of the resistant components under laboratory conditions are briefly discussed.