摘要
从非洲水稻研究中心引进了78份非洲新稻品种资源,2009年在武汉大田条件下种植,对生育期、水稻白叶枯抗性和稻米品质进行了初步评价。观察表明,生育期可以分为4个类型:短生育期品种13份,中生育期品种37份,长生育期11份,生育期特长在武汉不能安全抽穗的品种17份。白叶枯抗性鉴定表明,57.7%的品种高抗或抗长江中下游籼稻区的优势白叶枯病菌株ZHE173,76.9%的品种高抗或抗来自云南稻区的菌株YN18,对中国新发现的强致病力菌株FuJ能达到抗级水平的仅有3个品种,而达到中抗水平的有5个品种,凡是对FuJ达到中抗以上的品种,均高抗或抗ZHE173和YN18。对50个品种的米质分析表明,非洲新稻品种的稻米加工品质和粒型品质特别优良。非洲新稻品种资源可以用于改良国内新品种的白叶枯病抗性和稻米加工品质。
78 rice varieties（new rice for Africa,NERICA） were introduced from Africa Rice Center and planted in field at Wuhan in 2009.The growth duration,resistance against rice bacterial blight and rice quality were evaluated preliminarily.The results showed that the growth duration of 78 NERICA varieties could be divided into four groups,13 for short growth duration,37 for medium,11 for long,and 17 for over-long growth duration which could not heading normally.57.7 percent of 78 NERICA varieties were resistant against the epidemic strain（ZHE173） of Xanthomonas oryzae pv.oryzae（Xoo） in indica rice growing area in Yangtze Valley.76.9 percent of varieties were resistant against the Xoo strain,YN18,from Yunnan Province.Only eight out of 78 varieties evaluated were resistant against the Xoo strain,FuJ,which is new strain with strong virulence in China.The varieties resistant against FuJ were resistant against both ZHE173 and YN18.The milling quality and grain length and shape are high-class.The NERICA is valuable for improving bacterial blight resistance and rice quality in future rice breeding program in China.
出处
《植物遗传资源学报》
CAS
CSCD
北大核心
2010年第6期683-690,共8页
Journal of Plant Genetic Resources
基金
农业部"948"项目(2006-G8-32)
科技部国际科技合作重点项目(2009DFA31400)
关键词
非洲新稻
生育期
白叶枯病抗性
稻米品质
NERICA
Growth duration
Resistant against bacterial blight
Rice quality
