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本试验以８个在杂交后代表现出不同秃尖程度的自交系及其组配的一套８×８的双列杂交组合为材料，对其总小花数、退化花数和未受精花数进行分析研究表明，各组合总小花数目的多少是由基因型决定的，Ｆ１代的多花优势与双亲的多花性呈高度的正相关。雌穗上的小花能否发育成有效花，组合间有差异。一般在果穗的顶部出现退化花和未受精花，是影响有效花数目最直接的因素，雌穗上退化花和未受精花数目的多少主要受环境的影响。
In this study, 8 inbred lines with different degrees of baldness and 8 × 8 double crosses were used as materials. The total number of flowers, the number of flowers degenerated and the number of unperfumed flowers Analysis showed that the number of the total number of florets in each combination is determined by the genotype. The advantage of multi-flowering in F1 generation is highly positively correlated with the multiplication of parents. Ears on the flowers can develop into an effective flower, there are differences between the combinations. Degenerated flowers and unfertilized flowers usually appear at the top of the ears, which is the most direct factor affecting the number of effective flowers. The number of degenerated and unfinished flowers on the ear is mainly affected by the environment.