广东省常规水稻育种具有辉煌的历史，近40年（1982—2021年）共通过审定359个常规稻品种。本研究将这40年分为8个时期，对各时期审定品种的特性进行统计分析。结果表明，平均单产由5 313.0 kg/hm²稳步提升至6 882.2 kg/hm²；平均株高逐渐增加，有效穗数明显下降，穗长和穗粒数明显提高，结实率和千粒重未明显改变；直链淀粉含量由26.1%下降至16.5%；审定品种总体优质率75.2%，近3年（2019—2021年）审定品种的优质率达85.2%，其中国标1级优质稻占比达39.5%；稻瘟病中抗及以上品种占比85.8%，白叶枯中抗及以上品种占比44.0%；通过审定的359个品种来源于406个亲本，其中有8个亲本直接衍生10个以上品种，黄广油占和五山丝苗分别衍生25个和21个品种，而这8个亲本均衍生自当前我国籼稻育种中重要骨干亲本丰八占；推广面积超过6.67万hm²的品种共55个，其中12个品种超过66.67万hm²，黄华占和双桂1号推广面积均在333.33万hm²以上。

The conventional rice breeding has a glorious history in Guangdong province. In the past 40 years (1982-2021) in Guangdong province, 359 conventional rice varieties have been approved. In this study, the 40 years were divided into 8 periods, and the characteristics of the varieties in each period were statistically analyzed. The results showed that the yield improved from 5 313.0 kg/hm² to 6 882.2 kg/hm². The average plant height of rice increased gradually, the average effective panicle number decreased significantly, the panicle length and the filled grains per panicle increased significantly, while the seed-setting rate and 1 000-grain weight were not markedly changed. The amylose content decreased from 26.1% to 16.5%, the overall high-quality rate of the approved varieties reached 75.2%, and the high-quality rate of the approved varieties in the past three years (2019—2021) reached 85.2%, of which the first-grade high-quality rice accounted for 39.5%. The proportion of varieties with medial and above resistant to rice blast and bacterial blight was 85.8% and 44.0%, respectively. The parentage analysis shower that the approved 359 varieties are derived from 406 parents, of which 8 parents directly derive more than 10 rice varieties, 25 and 21 varieties were generated from Huangguangyouzhan and Wushansimiao, respectively. The 8 parents are all derived from Fengbazhan, an important backbone parent in the indica rice breeding in China. There were 55 varieties with a promotion area of more than 66,700 hm², of which 12 varieties were more than 666,700 hm². Huanghuazhan and Shuanggui 1 had a promotion area of more than 3,333,300 hm².