期刊论文

中文

中国农学通报

1000-6850

2011

27

15

26-33

本校为第一机构

为探讨杂种优势与双亲值、双亲一般配合力(GCA)、组合特殊配合力(SCA)、双亲遗传距离的关系,利用10个不育系和10个恢复系,按不完全双列杂交配制100个组合,对杂交水稻产量及农艺性状的杂种优势进行了分析,探索杂种优势的预测方法。结果表明:杂种一代的超亲优势和对照优势主要体现在穗长、每穗总粒数、每穗实粒数几个性状上,其具有正向超亲优势组合的比例分别达到61.0%、66.0%和53.0%,具有正向对照优势的比例分别为62.0%、78.0%和79.0%,结实率性状具有正向对照优势的比例也达到58.0%。杂种优势与父母本值、父母本平均值、高亲值、低亲值及父母本差值都有较为密切的关系,超亲优势与高亲值在8个性状...

In order to explore the relation between heterosis and parents value,the general combing ability of parents,the specific combing ability of combinations and the genetic distance,using 10 male sterile lines （maintenance line） and 10 restorer lines were used to make 100 crosses by NCⅡ design to analyze heterosis of yield and agronomic characters and explore the method of predicting heterosis.The results showed：the over-parent and contrast heterosis of hybrids mainly presented panicle length,number of grains per panicle,filled grains per panic...