关键词: 水稻, 产量, 品质, 食味值, 直链淀粉, 蛋白质

Abstract: The method of systematic quality analysis was adopted to compare the differences between ‘Jinyuan 89' and its progeny in terms of product quality, eating quality, and appearance quality, aiming to prioritize the selection of progeny lines with high yield, superior eating quality and physicochemical properties during the breeding process. Regarding yield and its components, the progeny ‘CK56' exhibited the highest yield, significantly surpassing that of the parent ‘Jinyuan 89'. Although the yields of other progeny lines were lower than that of ‘CK56', most still outperformed their parent. In terms of quality: the progeny ‘CK41' demonstrated lower amylose and protein contents, along with a higher eating quality score, showcasing outstanding quality performance among the progeny. Among the rice texture characteristics, ‘2188' excelled in balance, eating quality performance, and overall rice quality. In summary, among the progeny lines of ‘Jinyuan 89', ‘CK56' and ‘2188' displayed superior comprehensive quality performance and are recommended for large-scale cultivation. The conclusion suggests that when breeding rice, the balance between rice eating quality and yield should be considered as the starting point to select high-yielding and high-quality rice varieties.

Key words: rice, yield, quality, taste value, amylose, protein