| 摘要: |
| 本研究利用提型杂种小麦的60个亲本,47个 F1杂种,在选用性状不同的情况下研究了亲本数量性状遗传距离与 F1单株产量杂种优势的关系,分析了提型杂种小麦的亲本选配问题,并对遗传距离与杂种优势关系的研究方法等问题进行了讨论。 |
| 关键词: 杂种小麦 遗传距离 亲本选配 |
| DOI： |
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| 基金项目:高等学校科学技术基金 |
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| STUDIES ON THE METHOD OF GENETIC DISTANCE ANALYSIS AS A MEANS IN THE CHOICE OF PARENTS FOR HYBRID WHEAT WITH TIMOPHEEVI CYTOPLASM |
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| Abstract: |
| 60 parental lines and 47 F_1 hybrids were used in the experiment to study the relationship between genetic distance and heterosis of hybrid wheat with Timopheevi cytoplasm.4 groups of characters chosen by 4 different methods were used in the calculation of genetic distance. When heterosis was measured as the deviation of F_1 yield performance from the midparent,there seemed to be no significant relationship between genetic distance and heterosis.But it could be seen obviously that D~2 numbers of crosses wit... |
| Key words: hybrid wheat genetic distance seletion of parents |
