摘要
对９个冬小麦亲本（５个品质亲本作母本，４个农艺亲本作父本）１３个性状的杂种优势分析表明，产量性状的杂种优势较强，品质性状的杂种优势较弱。籽粒蛋白质含量、硬度和湿面筋、干面筋含量偏低亲或中亲遗传，沉淀值偏高亲遗传，存在较明显的杂种优势（－１６．１－２３．８％）。对８个农艺性状的配合力分析表明，株穗数、千粒重和抽穗期的遗传以基因的加性效应占绝对优势，株高、株粒数和成熟期受基因加性和非加性效应共同作用，但加性效应更加重要，而穗粒数和单株产量除基因加性效应外，非加性效应作用更大。文中还对杂种优势、配合力效应与亲子代的性状值进行了相关分析。
The heterosis anlysis of thirteen characters of nine winter wheat parents (five quality parents were used as male parent,four agronomic parents as female parent) showedthat heterosis of yield traits were higher,heterosis of quality traits were lower. Inheri-tance of grain protein content,hardnees,wet gluten content and dry gluten content tended to the parent with low value or average value,sedimentation value tended to the parent with high value. The heterosis of sedimentation value was higher than other qualitycharacters. The analysis of combining ability of eight agronomic characters showed thatgene additive effect was predominant to spike per plant,thousand kernel weight andheading date,gene additive effect and non-additive effect both acted to other characters,but gene additive effect were more important to plant height,kernel per plant and ripening date,non-additive effect more important to kernel per spike and yield per plant. Therelation between heterosis,Gca. effect,Sca. effect,the mean of characters in perent andF, were analysed in the paper.
出处
《西北植物学报》
CAS
CSCD
北大核心
1996年第3期271-276,共6页
Acta Botanica Boreali-Occidentalia Sinica
关键词
小麦
杂种优势
配合力
相关分析
wheat variety
heterosis
combining ability
correlation analysis
