广亲和系配制的杂种产量潜力分析  

Analysis on Yield Potential of F_1 Hybrids Made from Wide Compatibility Lines

作　　者：任仲玲 刘洪进 朱庆森 郎有忠 王志琴 杨建昌 

机构地区：[1]沿海地区农业科学研究所,江苏盐城224002 [2]盐城市种子公司,江苏盐城224002 [3]农业部江苏省作物栽培生理重点实验室,江苏扬州225009

出　　处：《杂交水稻》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 )

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.

关 键 词：水稻 广亲和系 库容量 物质生产 物质转运 杂种优势 产量潜力 亚种间杂交组合 

分 类 号：S511.035.1[农业科学—作物学] S511.01