摘要
在相同环境条件下,研究了3个母本与5个父本玉米自交系形成的15个杂交组合在充实期子粒重量的增加与充实时间的关系。结果表明,所有杂交组合种子从授粉后10d开始,种子重量的增加均表现为典型的S形曲线增长,且不同基因型表现一致。在授粉后30d内,母本间方差达显著或极显著,父本间方差均不显著,说明在此期间内,对杂交种子粒重增加的效应可能母本比父本更明显;授粉后第35天,母本间方差极显著,父本间方差显著,说明此时母、父本对增加杂交种子粒重的效应均较明显;在授粉40d后,对杂交种子粒重增加的效应转变为父本比母本更明显。
The relationship of kernel weight increasing in grain filling stage and the filling time was researched by 15 maize hybrid seeds crossing 3 females with 5 males in the same condition.The results indicated that kernel weight increasing models of all crosses were fit with typical S-curve beginning from 10 days after pollination,and different genotype showed correspondence.For 100-kernels weight of hybrid seeds in 30 days after pollination,the variance among the females was remarkable or highly remarkable,the ...
出处
《玉米科学》
CAS
CSCD
北大核心
2010年第2期59-61,共3页
Journal of Maize Sciences
基金
重庆市水稻玉米重大专项玉米育种材料创新项目(CSTC
2007AA1022)
高产多抗优质玉米新品种培育(CSTC
2007AA1017)
杂交玉米育种新技术与新方法研究(CSTC
2007AB1045)
关键词
玉米
杂交种子
充实期
粒重
Maize
Hybrid seeds
Filling stage
Kernel weight
