小麦慢条锈品种成株期抗性组分分析  

Slow-rusting resistance components of wheat to Puccinia striiformis at adult stage

作　　者：曹世勤[1] 金社林[1] 贾秋珍[1] 骆惠生[1] 金明安[1] 

机构地区：[1]甘肃省农业科学院植物保护研究所,兰州730070

出　　处：《植物保护》2006年第4期39-42,共4页Plant Protection

基　　金：甘肃省自然科学基金项目(ZS001A25036N)

摘　　要：经2001-2003年对典型慢条锈品种成株期抗性组分测定结果表明,慢条锈品种具有如下特征:反应型和普遍率与快条锈品种差异不大,但病情指数低且上升速度缓慢;侵染点数少;潜育期相对较长;相对寄生适合度较小;对产量构成因素的影响不大等特点。提出了潜育期和病情指数是田间鉴定品种慢条锈性与否的简易、快速方法。The resistance components of slow-rusting of wheat at adult stage were tested, and the results showed that slow-rusting varieties were characterized by： a. no difference of infection types and infection percentage from fastvarieties, but rather low disease index and slow-rising AUDPC （the Area Under the Disease Progress Curve）; b. low relative infection efficiency; c. relatively long latent period; d. low relative parasitic fitness; e. no significance in yield reduction. At the same time, the latent period and disease index may be used to identify slow-rusting varieties.

关 键 词：小麦条锈病 慢条锈品种 抗性组分 

分 类 号：S435.121.42[农业科学—农业昆虫与害虫防治]