摘要
通过对以国内新育成的优良广亲和系为母本 ,典型籼、粳品种为父本配制的 8个杂种F1的产量潜力分析 ,结果表明杂种一代具有库容、物质生产和产量优势 ,特别是亚种间杂种优势突出。亚种间杂交组合抽穗后叶片衰老缓慢 ,功能期长 ,存在抽穗后干物质积累优势 ,但大多数亚种间杂交组合物质转运不良 。
The analysis on yield potential of 8 hybrid combinations made from new wide compatibility lines showed that the hybrids, especially, the intersubspecific hybrids, had heterosis in dry matter production, sink capacity and grain yield. The intersubspecific hybrids had a slower and a longer functional period of leaves, which results in their heterosis in dry matter production and cumulation, but most of them had a poorer translocation of dry matter from stem and sheath to panicle after heading, which greatly hinders their yield increasing ability.
出处
《杂交水稻》
CSCD
北大核心
2001年第2期41-45,共5页
Hybrid Rice
基金
国家"863"计划资助项目! (Z16 0 1 0 6 )
