The affect of rate of among five hormones on blunt with blossom in the same sowing period (in autumn) and different species (JinChunNO.3 and TM) showed: The ratio of GA3 and ETH had a closely relationship with blunt with blossom.

• 对同一播期（秋播）不同品种（津春3号，TM）植株体内五种激素之间的比例关系对黄瓜花打顶的影响效应来看，以GA3/ETH的比值与花打顶关系最为密切。