对28个杂交水稻品系(种)F_1代不同穗位籽粒性状进行统计分析表明,不同品系(种)间的籽粒容重、比重和千粒重的差异极显著,且符合全息分布,均为上部高于中部和高于下部。不同穗位间籽粒的容重、比重和千粒重的差异亦极显著。其中,千粒重上、中、下穗位间差异达极显著水平;上部容重极显著地高于下部,但与中部和混合处理间的差异不显著;上部比重极显著高于下部和混合处理。其差异产生的原因可用全息生物学理论解释。 Statistical analysis of grain traits at different ear positions in F1 hybrids of 28 hybrid rice lines showed that the differences of grain weight, specific gravity and 1000-grain weight among different lines and lines were significant and were in holographic distribution, And above the lower part. The differences of bulk density, specific gravity and 1000-grain weight among different ear positions were also significant. Among them, the differences of grain weight between the middle and the lower reaches were significant. The bulk density of the upper part was significantly higher than the lower part, but the difference between the middle part and the mixed part was not significant. The proportion of the upper part was extremely significantly higher than that of the lower part and mixed treatment. The reason for the difference can be explained by holographic biological theory.