Effects of Inorganic Phosphorus-Solubilizing Bacteria on Rhizosphere Phosphorus Forms and Steroid Saponin Content of <i>Paris polyphylla</i> var. <i>yunnanensis</i>.

Correlation Analysis Between Saponin Contents in Plants and Phosphorus in Rhizosphere Soils As presented in Table 5 , the concentration of polyphyllin I in plants exhibited a highly significant positive correlation with the contents of Ca 10 -P and O-P in rhizosphere soils ( p < 0.01).

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