摘要: |
利用单交、回交及三交三种组合方式研究普通小麦产量及品质性状的遗传变异,结果表明,单株产量和籽粒蛋白质含量、干、湿面筋含量和S.D.S沉淀值在回交群体中的遗传变异与轮回亲本有关,在三交群体中的遗传变异与第三亲本有关。用高值系本回交和用品质比较好的亲本作第三亲本进行三交,后代可能分离出更多的品质好的个体,这对选择比较有利。 |
关键词: 组合方式,小麦,产量,品质,遗传变异 |
DOI: |
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基金项目:国家自然科学基金!29170492,39370440 |
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Abstract: |
With the single crosses, the back crosses and the 3-way crosses of wheat (Triticum aestivum L. ),the genetic variation of the yield and quality characters were stud-ied, and the results are as follows: The genetic variation of yield per plant and quality characters was correlated to the recurrent parent in back cross population and the third parent in 3-way cross population. It also showed that the back cross with higher value par-ent and the 3-way cross with other higher value parent as the third parent could greatly in-crease the probability of segregating plants with good quality characters. |
Key words: cross pattern,wheat,yield,quality,genetic variation |