杂交早稻库源特征及其应用研究  

Source-sink relationship and its utilization of early hybrid rice

作　　者：陈建民 黄荣裕 陈秉发 谢旺有 

机构地区：[1]福建省泉州市农业科学研究所,福建晋江362212

出　　处：《福建农业学报》2001年第2期16-19,共4页Fujian Journal of Agricultural Sciences

基　　金：福建省水稻育种攻关项目 (96 -Z-14 9)

摘　　要：调查分析了若干早稻品种 (组合 )的库源类型与结实性的关系。结果表明 ,杂交早稻组合具有明显较大的产量库容 ,源相对不足 ,产量库的实现率主要受源的限制 ,属源限制类型。因此 ,育种上在注重选择大穗的同时 ,还应重视叶片光合功能的选择 ;栽培上应采取增大源 (叶面积 )和延长源 (叶 )功能的措施 ,以充分发挥其产量潜力。Investigation and analysis on source\|sink relationship and seed\|setting character of some early rice varieties (hybrid combinations) indicated that early hybrid rice combinations possessed obvious hybrid vigor in sink capacity of yield and relativly inadequate source.The reaching rate of yield sink was mainly restricted by source,the combinations belonged to source restricted sort,so selection of big panicle and photosynthesis function of leaf was same important in breeding.Proper cultural practice such as strengthening and lasting function of source should be done to fully develop yield potential.The reason why seed\|setting rate in early hybrid rice was lower than that in conventional rice was also discussed.

关 键 词：杂交早稻 库源类型 结实性 千粒重 

分 类 号：S511.31[农业科学—作物学]