矮壮素是一种植物生长抑制剂,具有抑制营养体生长,增强植物抗逆力的作用。大棚中栽培的黄瓜、番茄,由于处在高温、高湿的环境条件下,容易使营养体发育过于繁茂,而生殖生长发育迟缓,果实膨大慢,成熟推迟,产量降低,影响经济收益。因此,喷施矮壮素可以通过控制植株营养体生长和发育,从而调节营养生长与生殖生长的矛盾,促使果实发育达到提早成熟,增加产量的目的。今年,我们在塑料大棚中栽培的番茄和黄瓜只采用75ppm和2500ppm两种浓度的矮壮素 Chlormequat is a plant growth inhibitor, with the inhibition of vegetative growth, enhance the role of plant resistance to stress. Greenhouses cucumbers, tomatoes, due to the high temperature and high humidity in the environment, easy to make vegetative body over-fertility, and reproductive growth retardation, fruit swelling slow, delayed maturation, yield, affecting economic benefits. Therefore, the application of CCC can control the growth and development of vegetative vegetative so as to regulate the conflict between vegetative and reproductive growth, and promote the early maturity of fruit development and increase the yield. This year, we planted tomatoes and cucumbers in plastic greenhouses using only two concentrations of chlormequat, 75ppm and 2500ppm