摘要
选用4个光温敏核不育系与4个恢复系,按不完全双列杂交试验设计,通过对杂交组合各农艺性状与双亲关系的研究发现,在株高和穗节伸出长度这两个性状上,所有杂交组合均超过中亲值;16个杂交组合在一次枝梗粒数、二次枝梗粒数和单株有效穗数这3个性状上与恢复系呈极显著正相关。
Selected 4 Japonica photoperiod/ thermo-sensitive genic male sterile lines and 4 restorer lines,using the experiment of incomplete diallel cross(NCⅡ) to research the relationship between offsprings and parents on agronomic traits,the results indicated that all crosses exceed midparent on plant height and panicle length,there was a significant positive correlation among grains number at primary branch,grains number at secondary branch,effective panicles per acre and restorer from 16 crosses.
出处
《北方水稻》
CAS
2012年第2期19-21,33,共4页
North Rice
关键词
两系杂交稻
杂种优势
农艺性状
北方
Two-line hybrid rice
Heterosis
Agronomic traits
North