光敏水稻与旱稻的杂种F_1代主要农艺性状的配合力研究

用田间实验及田间观测然后用SAS软件分析的方法,对具有代表性的2个光敏水稻品种与5个旱稻品种所配制的杂种F1代的12个主要农艺性状进行配合力分析,研究了各个性状的一般配合力和特殊配合力与F1竞争优势的关系。结果表明:农垦58S对提高产量有相对较大的作用,7001S对矮化株型有较大作用;7001S是较优的母本,旱驯1号是较优的父本品种,农垦58S×S647、001S×热大1号、农垦58S×旱驯1号是比较理想的杂交组合;配合力效应对杂种F1竞争优势的影响是正相关的。

Studies on Combining Ability of Major Agronomic Characters in Hybrid F1 of Photo-sensitive Rice and Upland Rice

Combining abilities of 12 major agronomic characters in representative hybrid F1 of 2 photosensitive rice varieties and 5 upland rice varieties were analyzed by field test and observation and by SAS software analysis.The relation between general combining ability and specific combining ability of different agronomic characters and the competitive advantage of F1 was also studied.Results showed that Nongken 58S played an important role in improving yield and 7001S had an effect on dwarfing plant type.7001S was the better maternal line,while Hanxun 1 was the better paternal line.And Nongken 58S×S64,7001S×Reda 1,Nongken 58S×Hangxun 1 were ideal hybrid combinations.The combining ability effect on the competitive advantage of the F1 was positive correlation.