关键词: 植物生长调节剂, 蚕豆, 生产性状, 生产能力

Abstract: Effects of application times of daminozide at a single, high dose rate on plant height, partitioning of assimilates, yield and yield components of spring sown field dean cv. Maris Bead were studied in potted plants plunged out doors in ash. At harvest time, all treatmemts had decreased plant height significantly due to the shortening of different internodes. Daminozide used at 5 leaf stage temprarily retarded growth and increased harvest idex. Later applications permanently retarded vegetative growth and increased HI. Daminozide used at 25-leaf stage increasd total dry weight and yield, All three treatments increased yield by increasing the number of pods per plant but did not influence single seed weight and seedsper pod.

Key words: PLANT GROWTH REGULATORS, BROAD BEAN, PRODUCTION TRAIL, PRODUCTION CAPACITY