~(60)Co-Υ射线诱发的8个籼型温敏核不育系水稻叶色突变系可分为三种类型,即叶色突变高温表达型、低温表达型及温钝型。对温钝型3个突变系研究发现,该性状由单一隐性基因控制,其农艺性状除LCM6外与对照2177s相似或有所改观,育性转换特性和配合力也与对照相仿,对杂种优势无细胞质负效应。与杂交种“汕优63”混合播种时,叶色标记性状表达明显,幼苗竞争能力明显弱。 There are three types of leaf color mutant in indica TGMS lines induced by ~ (60) Co-γ-rays, that is, the leaf color mutant is characterized by high temperature expression, low temperature expression and warm dullness. The results showed that the trait was controlled by a single recessive gene and its agronomic traits were similar to or changed from the control 2177s except for LCM6. The fertility traits and combining ability were also similar to those of the control, Cytoplasmic negative effect. When mixed with hybrid “Shanyou 63”, the leaf traits markedly expressed and the seedling competition ability was obviously weaker.