直链淀粉含量偏低型杂交粳稻组合的稻米品质评价

随着稻米产量的增长和人们生活水平的提高,对稻米品质的要求也与日俱增。淀粉是稻米最主要的成分,稻米中淀粉含量超过糙米的90%,此外直链淀粉含量是影响稻米品质的主要因素。研究如何提高稻米品质也已成为育种学家关注的热点和所面临的重要问题之一。利用5个直链淀粉含量偏低型水稻恢复系材料与粳型不育系2701A配组得到的组合,研究水稻组合间直链淀粉含量和稻米品质间的差异,为低直链淀粉杂交水稻的选育、恢复系的筛选以及优质食味杂交水稻育种提供一定的理论基础与种质资源。

Evaluation of Rice Quality with Low Amylose Content in Hybrid Japonica Rice Combinations

As the growth of the rice production and rise of people living standard, demand for rice quality is growing. Rice starch is the main component, and the starch content in rice is more than 90% of the brown rice. Amylose content is the main factor affecting rice quality. How to improve rice quality has become a hot topic in the breeding and also one of the important problems faced. Five japonica rice restorer materials with low amylose content and sterile line-2701A were used to study the difference among combinations of rice amylose content and rice quality, and to provide a certain theoretical basis and germplasm resources for hybrid rice breeding of low amylose, screening of restorer lines and good quality of hybrid rice.