热研1号、2号与我国水稻的亲和性研究

• 作 者: 孙明 张培江 白一松 李成荃
• 机 构: 安徽省农科院水稻研究所,安徽省农科院水稻研究所,安徽省农科院水稻研究所,安徽省农科院水稻研究所
• 出 处: 安徽农业科学
• 发表日期: 1992年03期
• 关键词: 超高产育种 籼粳交 粳稻品种 柱头外露率 粳型 花时 籼型 野败 亚种间 类型品种

日本粳稻品种热研1号、2号与我国籼型、粳型及广亲和水稻品种杂交,F_1的结实率均较高,除热研1号与某些籼稻杂交,F_1结实率为75.70%外,其余均在80%以上。而且同类型组合间的变异系数较小,最大为14.21%。可以认为,热研1号、2号都具有广谱亲和性和较强的亲和力。它们的花时早而集中、柱头外露率高,对野败、矮败和BT型不育系都是保持的,在我国水稻超高产育种中具有重要的利用价值。

The japonica rice variety No.2 and No.2 crossed with indica, japonica and broad compatibility rice cultivars in China, and the seed setting rate of F 1 was higher. The cross between F 1 and some indica hybrids showed that the F 1 seed setting rate was 75.70% Outside, the rest are more than 80%. And the coefficient of variation of the same type of combination is smaller, the maximum is 14.21%. It can be considered, hot research No. 1, No. 2 has a broad spectrum of affinity and strong affinity. Their early and concentrated flowering, stigma exsertion rate is high, on the wild defeat, dwarf defeat and BT-type sterile lines are maintained in China’s rice super-high-yielding breeding has an important value.