粳稻光敏型核不育系对日长敏感性的鉴定分析  

Detection of photoperiod-sensitivity for photo-sensitive genic male sterile lines in rice

作　　者：周忠静[1] 薛庆中[1] 

机构地区：[1]浙江大学农业与生物技术学院农学系,浙江杭州310029

出　　处：《浙江农业学报》2009年第6期573-578,共6页Acta Agriculturae Zhejiangensis

基　　金：国家自然科学基金(30571146);浙江省重大科技攻关项目"水稻籼粳亚种间杂种优势利用研究"(8812计划)

摘　　要：提出利用自然日长鉴定粳稻光敏不育系的方法。应用AMMI(additive main effects and multiplicative interaction)模型,对8个水稻光敏不育系对日长和温度反应的遗传敏感性进行比较分析,将其育性敏感期日长分成6个梯度,温度分成11个梯度。结果表明:在杭州自然条件下种植参试的8个不育系均为光敏核不育系,具有以下特性,抽穗前10～20d是育性转化敏感期,不育系的可育临界日长为13.0～13.8h,育性的临界高温为25.0℃,临界低温为21.0℃。We have developed an identification method for the PGMS（photo-sensitive genic male sterile） lines under the natural day length.A comparison of genetic sensibility of the eight rice genotypes to longday and temperature was performed with the AMMI（additive main effects and multiplicative interaction）model,in which the longday and temperature at sensitive stages of the fertility were divided into 6 and 11 gradients,respectively,the results showed that these eight lines grown under the natural condition in Hangzhou belong to PGMS type,with the following characteristics：10-20 d before heading was the sensitive stage for the fertility transformation,3.0-13.8 h for critical day-length was 13.0-13.8 h,25 ℃ and 21 ℃ for the critical high temperature and critical low temperature of the fertility,respectively.

关 键 词：水稻 光敏不育系 育性 AMMI模型 

分 类 号：S511.2[农业科学—作物学]