南方农业学报2011，Vol.42Issue(12)：1481-1485,5.
江苏水稻主栽和候选品种抗黑条矮缩病鉴定
Identification of resistance to rice black-streaked dwarf disease in main rice cultivars and candidate varieties in Jiangsu
摘要
Abstract
[Objective]The purpose of the current study was to screen rice cultivars resistant to rice black-streaked dwarf disease (RBSDD) in order to develop breeding source for disease resistance breeding. [Method]The resistance of rice varieties to RBSDD was evaluated under natural field conditions. The evaluated varieties included 36 main japonica rice varieties planted during 1980 to 2000 in Jiangsu, 57 main japonica rice cultivars planted during 2001-2008, 228 japonica rice materials used in various trials in 2009, 210 family materials of Zhenshan 97B/Minghui 63 as well as 365 new japonica rice lines bred by Lianyungang Academy of Agricultural Sciences. [Result]Of 896 tested rice varieties or lines, none was found immune to RBSDD, however, 81.1% were found moderately susceptible and only 1.8% were resistant to RBSDD. The level of resistance differed in rice cultivars collected during different years. The cultivars collected during past decade showed high resistance than those of 20 years ago. Amongst recently bred rice varieties from Lianyungang Academy of Agricultural Sciences, the ratio of moderately resistance to moderately susceptible lines was distinctively higher compared to other four groups. Amongst the japonica rice varieties tested in the year 2009 in Jiangsu Province, mid maturing and japonica rice materials showed lower disease incidence compared to other types. After analyzing the relationship between rice strip leaf blight and black-streaked dwarf in Lianyungang, we found that the occurrence of rice black-streaked dwarf had some relaionship with the extended planting of strip leaf blight resistant rice varieties. [ Conclusion ] Sixteen RBSDD resistant rice cultivars such as Guangshenjin, etc., can be useful for breeding RBSDD resistant rice cultivars, studying resistance mechanism and exploring resistant gene. A suggestion was given to include both, the rice leaf blight disease and RBSDD resistance in future rice breeding programs in Jiangsu province.关键词
水稻/水稻黑条矮缩病/水稻条纹叶枯病/抗性鉴定/江苏Key words
Rice cultivars/ rice black-streaked dwarf/ rice stripe leaf blight disease/ resistance identification/ Jiangsu province分类
农业科技引用本文复制引用
卢百关,程兆榜,秦德荣,樊继伟,刘燕,潘学彪,徐大勇..江苏水稻主栽和候选品种抗黑条矮缩病鉴定[J].南方农业学报,2011,42(12):1481-1485,5.基金项目
国家公益性(农业)行业专项项目(201003031) （农业）
江苏省科技支撑计划项目(BE2009385) （BE2009385）
江苏省农业科技自主创新资金项目(CX08147) （CX08147）
连云港市科技攻关计划项目(CN0819) （CN0819）
