水稻抗纹枯病遗传研究中的鉴定与评价指标  

Identification and evaluating indicators of sheath blight resistance of rice

作　　者：付冬[1,2] 陈亮[1] 刘毅[1] 楼巧君[1] 李明寿[1] 熊良[1] 罗利军[1] 

机构地区：[1]上海市农业生物基因中心,上海201106 [2]中国种子集团有限公司生命科学技术中心,武汉430075

出　　处：《上海农业学报》2013年第1期5-9,共5页Acta Agriculturae Shanghai

基　　金：国家重点基础研究发展计划(2010CB125901);农业部转基因重大专项(2008ZX08001-002);上海市自然科学基金项目(09ZR1428200)资助

摘　　要：对1个包含286个个体的F_2群体及衍生出的包含121个株系的重组自交系群体(RILs)人工接种纹枯病菌,进行多年多点的纹枯病抗性鉴定。相关分析表明:病级(DR)、病斑长度(LL)、病斑高度(LH)、相对病斑长度(RLL)及相对病斑高度(RIH)等5个抗病性鉴定指标之间均呈极显著正相关,说明这些指标均可以较好地评价材料的抗病性,能够用于抗病鉴定研究。An F2 population including 286 individuals and a recombinant inbred lines population （RILs）consisting of 121 lines which derived from the F2 population were artificially inoculated with Rhizoctonia solani K/ihn, and then identification of their sheath blight resistances was carried out in different locations for several years. The correlation analysis showed that there were very significant positive correlations between the five indicators, or disease rating（DR）, lesion length（LL）, lesion height（LH）, relative lesion length（RLL）and relative lesion height（RLH）, indicating that all the 5 indicators could be used for evaluating the disease resistance.

关 键 词：水稻 稻纹枯病 抗病性 鉴定 评价指标 相关分析 

分 类 号：S435.111.4[农业科学—农业昆虫与害虫防治]