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从 1997～ 2 0 0 0年福建省早籼食用优质稻品种 (组合 )生态试验结果表明常规稻的产量水平为 5 5 0t/hm2 ,杂交稻的产量水平为 6 70t/hm2 ,杂交稻比常规稻增产 2 1 82 % ,与对照种 78130相比 ,常规稻比对照种减少 10 15 % ,杂交稻比对照种增产 8 19%。杂交稻比常规稻增产的主要因素在于有效穗与每穗粒数。杂交稻生育期比常规稻迟 3 1d。抗性方面两者均不理想。
From 1997 to 2000, the ecological test results showed that the yield of conventional high-yielding rice varieties (combinations) in Fujian Province was 550 t / hm2 and that of hybrid rice was 6 70 t / hm2. Compared with the control 78130, conventional rice reduced by 10 15% compared with the control and the yield of hybrid rice increased by 8 19% compared with the control. The main factors that increase the yield of hybrid rice compared with conventional rice are the effective spike and grain number per spike. The growth period of hybrid rice was 31 days later than that of conventional rice. Neither is ideal in terms of resistance.