| 摘要: |
| 研究小麦籽粒品质性状的亲子相关表明:在 F1代和 F2代,籽粒蛋白质含量及干、湿面筋含量与中亲值和低亲值均呈显著或极显著正相关。Zeleny 沉淀值在 F1代与高亲值、中亲值及低亲值的正样关均不显著,在 F2代,与高亲值和中亲值呈极显著正相关。F2对 F1仅仅干面筋含量呈极显著正相关。F3家系对 F2单株除湿面筋含量外,籽粒蛋白质含量、Zeleny 沉淀值和干面筋含量在多数组合中呈显著或极显著正相关。小麦籽粒品质性状的遗传力因材料和方法而异。表现为中等偏上,其排列顺序为:籽粒蛋白质含量>面筋含量>Zeleny 沉淀值。小麦籽粒品质性状在 F2分离群体和 F3混合群体的遗传表现基本一致,呈连续性分布,且存在超亲分离现象。籽粒蛋白质含量和干、湿面筋含量以偏低亲和近中亲分布为主,Zeleny 沉淀值以偏高亲和超高亲分布为主。 |
| 关键词: 籽粒品质性状 亲子相关 遗传力 分离与分布 |
| DOI： |
| 投稿时间：1994-01-15 |
| 基金项目:国家自然基金并得到中德 CIAD 项目 |
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| Abstract: |
| Studies on parent-offspring correlation of grain quality characters showed that:grain pro- tein content(GPC).dry gluten content(DGC)and wet gluten content(WGC)in F_1 generation and F_2 generation were positively or highly positively correlated with mid-parent values and low parent values. Zeleny sedimentation value(SV)in F_1 was not positively correlated with high parrent values,mid-parent values and low parent values.However,Zeleny SV in F_2 was highly and positively correlated with high parent values and ... |
| Key words: grain quality characters parent-offspring correlation heritabilities distribution and selection |
