本文总结了1972—1977年在小麦、青稞化学催熟方面的试验结果。在乳熟中期,用氯酸镁、二氯丙酸和硫脲处理,可有效地诱导茎叶提前衰亡、促进籽粒成熟(早熟4—7天),但粒重下降5％左右。生理学和细胞学的比较说明,药剂诱导的组织衰亡是一个近似于自然衰亡的生理过程。它不中断或破坏其总的进程,但明显地影响衰亡过程各阶段出现的迟早与进展程度。 This paper summarizes the experimental results of the chemical ripening of wheat and barley from 1972 to 1977. In the mid-milk stage, treatment with magnesium chlorate, dichloropropionic acid and thiourea can effectively induce premature leaf stems decay and promote grain maturity (4-7 days earlier), but the grain weight decreased by about 5%. Comparison of physiology and cytology shows that drug-induced tissue decline is a physiological process similar to natural decline. It does not interrupt or undermine its overall process, but it obviously affects the sooner or later progress of each stage of the decline process.