摘要： 根据加性-显性模型,利用15个双低油菜细胞质雄性不育杂交组合的F1及其亲本,预测杂种后代基因型值和杂种优势。结果表明:F1杂种优势较强。优势强的组合,其基因型值较高;反之,则低。因此,可以利用基因型值结合杂种优势评价组合。15个组合中,A3×R3最好,其F1群体平均优势、超亲优势均最高,而且基因型值很高,A2×R4次之。
关键词:
基因型值,
杂种优势,
评定,
双低油菜,
杂交组合
Abstract: ADM(Additive-Dominant Maternal) model was used in 15 cytoplasmic male sterile hybrids and their parents to predict the hybrids genotype value and heterosis.It showed that F1 hybrids had significant heterosis.Strong heterosis cross also hacl high genotype value.On the other hand,low heterosis crosses hacl low genotype value.So we can use genotype value combining with heterosis to appraise crosses. It can increase the foresight of breeding and shorten the breeding period.Cross 13(A3×R3)was the best cross,with both highest mid-parent heterosis and highest above better parent heterosis,its genotype value was also very high.
Key words:
Genotype value,
Heterosis,
Evaluation,
Double low rapeseed,
Hybrid crosses
中图分类号:
张书芬, 田保明, 王建平, 朱家成, 文雁成, 刘建明. 用杂种基因型值、杂种优势评定双低油菜杂交组合[J]. 华北农学报, 2002, 17(1): 51-54. doi: 10.3321/j.issn:1000-7091.2002.01.011.
Zhang Shufen, Tian Baoming, Wang Jianping, Zhu Jiacheng, Wen Yancheng, Liu Jianming. Evaluation of Hybrid Crosses by Genotype Value and Heterosis for Double Low Rapeseed(B.napus)[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2002, 17(1): 51-54. doi: 10.3321/j.issn:1000-7091.2002.01.011.