通过对两个组合黄瓜开花期遗传力分析得出，黄瓜开花期属于由多基因控制的数量性状遗传；黄瓜开花期变异频率以Ｆ２为最大，以下依次是回交世代、亲本品种、Ｆ１代；黄瓜开花期遗传，广义遗传力约为６０％，狭义遗传力约为６０％±３０％，显性遗传力约为１０％，环境引起的差异约为４０％。 Through analyzing the heritability of the two cucumbers at the flowering stage, the flowering stage of cucumber was inherited by the quantitative trait controlled by polygenes. The frequency of variation at flowering stage of cucumber was F2, and the following were backcross generation, parental variety and F1 generation. Cucumber flowering stage genetic, general heritability of about 60%, narrow heritability of about 60% ± 30%, dominant heritability of about 10%, the difference caused by the environment is about 40%.