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用7个福优组合和汕优63为试验材料，进行秧龄弹性比较，设15—50d8种秋龄期，对组合产量及构成产量的5个性状的比较和相关分析，结果表明：福优组合秧龄弹性是影响高产的因素之一；最佳秧龄期为25—30d，出现穗数、穗粒数、千粒重、单株粒重的最佳结构。
Seven combinations of Fuyou and Shanyou 63 were used as experimental materials to compare the elasticity of seedling age with the age of 15-50d. The results showed that the combination of Fuyou combination The elasticity of seedling age was one of the factors affecting the high yield. The best seedling age was 25-30 days, and the best structure of spikes, grains per spike, 1000-grain weight and grain weight per plant appeared.