陕西省小麦品种与陕西省不同年份的叶锈菌群体的相互作用研究  

The Study on the Interaction of Wheat Cultivars of Shaanxi Province and Isolates of Puccinia recondita f.sp.tritici Collected in Different Years in Shaanxi Province

作　　者：汪宜萱[1] 朱之堉[1] 王焕如[1] 张凤国[1] 袁文焕[2] 

机构地区：[1]河北农业大学植保系 [2]陕西省农科院植保所

出　　处：《河北农业大学学报》1989年第4期1-6,共6页Journal of Hebei Agricultural University

摘　　要：用来自陕西省1982—1987年6年的146个小麦叶锈菌株分别对陕西省34个小麦品种接种,分析毒力频率、毒性公式、联合抗病性。结果表明①目前大面积推广的18个生产品种中有13个高感叶锈病,占72.2%。②在12个抗源材料中,有9个对抗叶锈没有利用价值。③用不同年份的菌株进行试验所得的毒力频率、毒性公式和联合抗病性的结果都有差异,因此对同一地区不同年份研究小麦品种与叶锈菌群体的相互作用应具有“时态观点”。Analyses were made on virulence frequency,virulence,formula,and reaction association by inoculating 34 wheat cultivars of Shaanxi Prov- ince respectively with a population of-146 isolates of Puccinia recondita f.sp.tritici collected during 1982—1987 in Shaanxi Proviuce. The result showed (1) 13 (72.2%) of the 18 widely released wheat eultivars were highly susceptible to leaf rust;(2) 9 of 12 sources of resistance showed to be valueless against leaf rust;(3) The result of analyses of virulence frequency,virulence,formula and reaction associ- ation were all different by using isolates of the rust collected in diffe- rent years. The authors suggest to have the vicwpoint of time factor when the interaction of wheat cultivarsand population of leaf rust is studied in one locality but in different years.

关 键 词：小麦 叶锈菌 群体 相互关系 品种 

分 类 号：S512.102[农业科学—作物学]