Abstract: At the standardized planting base of Monochasma savatieri Franch. ex Maxim. in Yichun City, Jiangxi Province, regions with significantly different growth status of Monochasma savatieri under the same cultivation and management conditions were selected to investigate the effects of soil conditions on its growth and active components. The results showed that under different soil conditions, both the growth status and active component content of parasitic-cultivated Monochasma savatieri were significantly affected. Among these, the soil in Wentang Town had the highest natural water content (21.77%), total porosity (66.96%), and air permeability (59.72%); the Monochasma savatieri in this region also had the highest yield (based on the fresh weight of aboveground parts, 68.27 g) and active component content, showing the best quality. The soil in Wojiang Town had weak water-holding capacity and low nutrient content, and the yield and active component content of Monochasma savatieri there were the second highest; while those in Xicun Town were the lowest. Correlation analysis showed that soil natural water content, total porosity, soil air permeability, and gravel proportion were positively correlated with the growth of Monochasma savatieri; while soil available nitrogen, available phosphorus, and available potassium contents were related to the accumulation of active components in Monochasma savatieri.

Key words: Monochasma savatieri Franch.ex Maxim., soil physical properties, yield and quality, total flavonoids, phenylethanoid glycosides