水稻是云南最主要的粮食作物之一。对已审定水稻品种进行总结和分析，可为云南未来的水稻新品种选育工作提供参考。本研究对云南省1983—2021年审定的559个水稻品种的亲本、产量、米质和抗病性等主要性状进行了分析评价。结果表明，审定的品种数量呈逐年上升趋势；杂交稻与常规稻的亲本多样性基本相当，亲本多样性并未随着审定品种数量上升而增加；杂交稻（非旱稻）和常规稻（非旱稻）单产呈小幅上下波动态势，旱稻单产呈增长趋势；近12年（2010—2021年）品种优质率为35.71%，优质1级品种数量极少，垩白度是影响米质提升最主要的因素；总体上，稻瘟病抗性有所降低，白叶枯抗性优于稻瘟病，近4年数据，抗纹枯病性好，感及高感纹枯病品种占比在15.00%以下，感及高感稻曲病品种占比在17.00%~52.00%间波动。

Rice is one of the most important food crops in Yunnan. The summary and analysis of the approved rice varieties can provide reference for new rice varieties breeding in Yunnan in the future. In this study, the main characters of parents, yield, quality and disease resistance of 559 rice varieties approved in Yunnan province from 1983 to 2021 were analyzed and evaluated. The results showed that the number of approved rice varieties exhibited an upward trend year by year. The parental diversity of hybrid rice and conventional rice was basically the same, and the parental diversity did not increase with the increase of the number of approved varieties. The yield of hybrid rice (non upland rice) and conventional rice (non upland rice) fluctuated slightly, and the yield of upland rice showed an increasing trend. In the recently 12 years (2010—2021), the good quality rate of rice varieties was 35.71%, few varieties have reached the first grade, high chalkiness was the most important limiting factor affecting the improvement of rice quality. In general, the rice blast resistance decreased, bacterial blight resistance was better than that of rice blast. The proportion of susceptible and highly susceptible varieties to sheath blight remained below 15.00%, the proportion of susceptible and highly susceptible varieties to rice false smut fluctuated between 17.00%-52.00%.