小麦对条锈病高温抗病性表达规律的研究  

CHARACTERISTICS OF EXPRESSION OF HIGH-TEMPERATURE RESISTANCE TO STRIPE RUST IN WHEAT

作　　者：商鸿生[1] 王利国[1] 陆和平[1] 井金学[1] 

机构地区：[1]西北农业大学,杨陵712100

出　　处：《植物保护学报》1997年第2期97-100,共4页Journal of Plant Protection

基　　金：国家自然科学基金

摘　　要：在控温试验条件下,利用典型高温抗条锈品种的系统研究表明,只有在条锈病病程的潜育期和显症期高温处理才有抗锈性诱导作用,在夏孢子堆出现以后进行高温处理,不表达抗病性。高温抗条锈性表达的最低温度为18～21℃,最短高温处理时间为8～12h。高温对抗病性的诱导为一次性作用,无累积效应。A series of experiments on expressing characteristics of high-temperature resistance were conducted on typical cultivars with high-temperature resistance under controlled temperature conditions. Results revealed that high-temperature induced resistance only in the infection stage of incubation and symptom-expression stage,but did not after the stage of spore production. The lowest temperature for high-temperature resistance expression was 18 -21℃ ,and the shortest time of high-temperature treatment for resistance inducing was 8 -12h. The resistance inducement of high-temperature showed no cumulative effect.

关 键 词：小麦 条锈病 高温抗病性 

分 类 号：S435.121.4[农业科学—农业昆虫与害虫防治] S432.23[农业科学—植物保护]