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. 在室外条件下,研究了单高剂量B9的三个不同施用时期对春蚕豆品种MarisBead的株高、同化物的分配、产量及产量结构的影响。