【摘要】 研究观察了 15个二系、三系杂交稻F1及其恢复系的再生性状 ,明确 :(1)特优明 86、汕优明 86、Ⅱ优明 86具有头季产量高和再生力高的“双高”特性 ;(2 )恢复系的再生力大多高于其组配的F1的再生力 ,高再生力的恢复系有较高机率组配出高再生力的F1,中、低再生力的恢复系所组配出的F1,再生力很低 ;(3)反映根系后期机能的头季成熟期的伤流量 ,与再生力成极显著正相关 ,可作为筛选再生稻品种的重要诊断指标更多还原

【Abstract】 The ratooning characters of 15 two-line hybrid rice F 1, three-line hybrid rice F 1 and restore-line were surveied in the studies The results showed that: 1 The restore-line of Teyouming 86, Shanyouming 86 and IIyouming 86 showed high yield in the first season and high ratooning function, which called “double high” characters; 2 The ratooning function of most restore-line was higher than that of its hybrid F 1 The higher ratooning function of restore-lines may have more chance to make higher ratooning function hybrid rice F 1, When the hybrid rice F 1 from the restore-line with middle or low ratooning function showed low ratooning function; 3 The bleeding capacity of rice in mature stage showed high singnificance positive correlaton with its ratooning function, which can be used as index for selecting ratooning rice varieties更多还原