北方杂交粳稻产量性状与品质性状相关性分析

目的]研究杂交粳稻产量性状与品质性状之间的相关关系,为北方杂交粳稻组合选育及应用提供参考。方法]对106个杂交粳稻组合产量性状与品质性状相关性进行分析,分析产量性状之间、品质性状之间及产量性状与品质性状之间的相关关系。结果]杂交粳稻单株产量与穗粒数、结实率呈极显著正相关;食味值与蛋白质含量呈极显著的负相关,与直链淀粉含量呈极显著正相关;单株产量与品质性状之间均无明显的相关关系。结论]育种上,可通过遗传改良来提高组合产量的同时改善其品质。

Analysis on Relativity between Yield and Quality Traits of Hybrid Japonica Rice in North China

Objective] The study aimed to research the relative relationship between the yield and quality traits of hybrid Japonica rice in North China.Method] The relativity between the yield and quality traits in 106 crosses of the hybrid Japonica rice was analyzed mainly on the relative relationship between the yield traits,between the quality traits and between the yield and quality traits.Result] The yield per plant in the hybrid Japonica rice showed the significantly positive relations to the grains per panicle and seed setting rate.The eating value had the significantly negative relation to the protein content and had the extremely significantly positive relation to the amylose content.There was no obvious relation between the yield per plant and quality traits.Conclusion] On the breeding,the quality of hybrid rice could be improved in same time of increasing the yield of the rice combinations through the genetic improvement.