Correlation analysis between rhizome quality and rhizosphere soil factors of Paris polyphylla var. yunnanensis / 中草药

ABSTRACT

Objective: To investigate the relationship between basic nutrient, the activity of soil enzyme and the quality of rhizome in the rhizosphere soil of wild and transplanted Paris polyphylla var. yunnanensis, and select the primal soil factors affecting the active components of P. polyphylla var. yunnanensis, and provide the reference for the rational fertilization of P. polyphylla var. yunnanensis. Methods: A total of 33 samples of rhizome and soil collected from P. polyphylla var. yunnanensis in Yunnan, Guizhou and Sichuan were used as materials. The basic nutrient, the activity of soil enzyme and the quality of rhizome of the samples were measured. On this basis, the correlation between the quality of rhizome and soil factor was analyzed. The primal soil factors affecting the quality of rhizome of P. polyphylla var. yunnanensis were also selected by using the method of stepwise regression analysis. Results: There were some differences in the contents of the total saponins, the total polysaccharides and the total flavonoids between the samples of wild and transplanted P. polyphylla var. yunnanensis, and there were also regional characteristics in quality between them. In all the rhizosphere soil samples of P. polyphylla var. yunnanensis, the pH of the soil was moderate, the basic nutrient was sufficient and rich, and the activity of soil enzyme was high, which were suitable for the growth and development of P. polyphylla var. yunnanensis. And the soil fertility quality of the wild P. polyphylla var. yunnanensis was better than the transplanted. The content of total saponins in the wild P. polyphylla var. yunnanensis was significantly positively correlated with the activity of polyphenol oxidase, and the content of total polysaccharides was significantly negatively correlated with the pH of the rhizosphere soil and the activity of urease. The content of total saponins in the transplanted P. polyphylla var. yunnanensis was negatively correlated with the content of available potassium in rhizosphere soil, the content of total flavonoids was significantly positively correlated with the activity of sucrase, and the content of total polysaccharides was significantly positively correlated with the activity of alkaline phosphatase. Conclusion Based on the traditional evaluation, the quality of the transplanted P. polyphylla var. yunnanensis samples is equal to the wild samples, they can be used as the same in the market. The quality of P. polyphylla var. yunnanensis is mainly affected by the soil factors. In the process of protecting wild P. polyphylla var. yunnanensis and cultivating P. polyphylla var. yunnanensis, it is need to be careful to increase and decrease the content and the ratio of soil nutrient according to the actual conditions.