RESUMO
OBJECTIVE: To study the effects of spraying uniconazole on plant morphology and total alkaloid content of Aconitum carmichaeli for providing theory base for establishment of planting measure. METHODS: The mainly morphological character and total alkaloid content of Radix Aconiti Lateralis Praeparata were studied under different uniconazole spraying time and density. RESULTS: Unieonazole could decrease plant height and leaf area, increase stem diameter, leaves and fibril roots, and the amount of dry matter. The difference in total alkaloid was not significant. CONCLUSION: In this experiment,Spraying uniconazole has no significant effect on total alkaloid content of Aconitum carmichaeli. It is better for increasing yield per plant to applied 120 mg/L unieonazole at sub-root enlargement stage than sub-root formation stage, and it is better to applied the same density at another stage for adjusting the plant morphology.
