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对水稻籽粒发育过程中不同时期总氮含量遗传及其与稻米品质关系的研究结果表明 ,三倍体种子核基因、二倍体母体植株核基因的显性效应 ,共同控制着稻米灌浆始期、中期和后期的总氮含量 ,且以前者为主 ,随着发育进程的推进 ,作用程度加大。三倍体种子、细胞质和二倍体母体植株的遗传效应 ,均可明显影响稻米成熟期的总氮含量。控制稻米总氮含量表现的多种遗传效应基因在稻米各个发育时期均有新的表达。不同发育时期总氮含量与稻米品质性状之间存在一定的相关性 ,且受不同遗传体系基因效应的控制
The results of genetic relationship between the total nitrogen content in different stages of rice grain development and rice quality showed that the dominant effect of nuclear genes in triploid seeds and diploid maize plants jointly controlled the initial and intermediate stages of rice grain filling, And the latter part of the total nitrogen content, and the former mainly with the development of advancement, the role of degree increased. The genetic effects of triploid seeds, cytoplasm and diploid maternal plants could all significantly affect the total nitrogen content in mature rice. A variety of genetic effect genes controlling the performance of rice total nitrogen content were expressed at all developmental stages in rice. There was a certain correlation between total nitrogen content and rice quality traits at different developmental stages and was controlled by the genetic effects of different genetic systems