水稻不育系稻粒黑粉病病穗率与病粒率间的关系研究  

THE RELATIONSHIP BETWEEN THE DISEASED PANICLE RATE AND THE DISEASED SEED RATE OF KERNEL SMUT ON RICE MALE STERILE (A) LINES

作　　者：黄富[1] 潘学贤 程开禄 汪远宏 

机构地区：[1]四川省农科院水稻高粱所,泸州646100

出　　处：《植物病理学报》1995年第1期65-68,共4页Acta Phytopathologica Sinica

摘　　要：经田间调查分析,稻粒黑粉病在水稻不育系D汕A和珍汕97A上的病穗率与病粒率之间的关系(简称P-S关系)均可用指数函数描述,分别建立了两个不育系上的P-S关系模型。协方差分析表明两回归方程的截距间有显著差异,并建立了两不育系的P-S关系综合模型。The relationship between the diseased panicle rate and the diseased seed rate (P-S re-lationship)of rice kernel smut (Neovossia horrida) on D shuan A-line and Zhengshuan 97 A-line were studied through field investigation. The results showed that the P-S relationship of the disease on the two A-lines might be described with exponential functions,and the P-S relationship models of the two A-lines were established. Analysis of covariance showed that there was a significant difference between the two regression intercepts, and the integrative P-S relationship model was established.

关 键 词：水稻不育系 稻粒黑粉病 病穗率 病粒率 相互关系 

分 类 号：S435.111.4[农业科学—农业昆虫与害虫防治] S41－31[农业科学—植物保护]