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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
The results showed that: (1) Teyouming 86, Shanyouming 86 and Ⅱ Youming 86 had the characteristics of high yield in the first season and high regeneration ability “Double high” characteristics; (2) the restorative power of the regeneration system is mostly higher than that of its F1, the regeneration of high regeneration has a higher probability group with high regeneration F1, medium and low regeneration (3) The injury flow in the first season, which reflects the post-root function, had a significant positive correlation with regenerative vigor and could be used as an important diagnostic index for screening regenerated rice varieties