Objective: To investigate the effect of plantgrowthsubstances on induction and culture of callus from Rhodiola quadrifida and also to analyze salidroside contents in the callus.
目的：考察植物生长物质对四裂红景天愈伤组织诱导和培养的影响并分析愈伤组织中红景天苷含量。
2
In one way or another all these various regulatory substances intervene and exert recognizable effects upon the overall course of plantgrowth and development.
所有这些不同的调节物质以这种或那种方式参与植物生长发育的全过程。
3
The light or the absence of inhibitory effect of other plant exogenous growthsubstances to Botritis cinerea was the main factor that they didn't control tomato gray mould disease steadily.