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对华南早籼组区试品种（组合）丰产性和稳产性的分析表明，优优１２８丰产性最强、稳产性（适应性）最大，比对照种七山占增产２４．９７％、比汕优桂９９增产２１．６４％，与其他参试品种的差异均达极显著，该品种与地点互作效应的相对变异和互作方差在参试品种中均为最小；特优１８、优优８８２１、粤香占、汕优８２、丰矮占１号、八桂占等均比对照种汕优桂９９和七山占增产，且达极显著水平，品种与地点互作效应的相对变异和互作方差均较小，有较好的稳产性。
The analysis of high yield and stable yield of early indica rice varieties in South China showed that youyou 128 had the highest yield and stability (the highest adaptability), with a yield 24.97% higher than the control, Qishan, Gui 99 increased 21.64%, with the other varieties were extremely significant differences, the variety and location of the interaction effect of the relative variation and interaction variance in the test varieties are the smallest; Teyou 18, Youyou 8821, Yuexiangzhan, Shanyou 82, Fengdai No.1 and Bagui accounted for more yield than Shanyougui 99 and Qishan, and reached the extremely significant level. The relative variation and interaction of variety-site interaction Variances are small, good stability and stability.