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６个早籼品种的分期播种试验结果表明：（１）强势粒与弱势粒的稻米垩白度差异，有强势粒显著高于弱势粒、强势粒显著低于弱势粒和强势粒与弱势粒无显著差异３种类型。（２）相同的温度变化对强势粒和弱势粒垩白度的影响不同，强势粒到达垩白最小时的温度可能高于弱势粒。（３）垩白与粒重之间的关系相当复杂，并受到供试品种和实验条件的强烈影响。
The results of staged seeding experiments on six indica rice showed that: (1) The difference of chalkiness degree between strong grain and inferior grain was stronger than that of inferior grain, and that of strong grain was significantly lower than that of inferior grain and strong grain and inferior grain Significant differences in the three types. (2) The same temperature change has different effect on the chalkiness of the strong grains and the inferior grains, and the temperature at which grains reach the minimum may be higher than that of the weak grains. (3) The relationship between chalkiness and grain weight is rather complicated and strongly influenced by the varieties tested and the experimental conditions.