Abstract:
OBJECTIVE To explore and screen the soil factors which influences the volatile ingredient of Ferula ferulaeoides. METHODS By measuring the content of volatile ingredient of Ferula ferulaeoides, soil nutrients and pH value in the corresponding place, using the One-way ANOVA, correlation analysis, partial least squares(PLS) methods and grey relational analysis(GRA) to analyze the soil factors which have great effect on the volatile ingredient content from Ferula ferulaeoides. RESULTS The content of volatile constituents of Ferula ferulaeoides and the soil factors from different habitats were significantly different. The total content of 12 volatile components of Ferula ferulaeoides and soil pH value were significantly negative correlated with each other(P<0.05); the content of guaiol were negatively associated with the available K(P<0.05); the α-pinene showed a significant positive correlation with the available N, K(P<0.01); the content of camphene and d-limonene showed significant positive correlations with the available K(P<0.05); bulnesol were positively correlated with total phosphorus(P<0.05), β-famesene showed a significant negative correlation with available phosphorus(P<0.05). By the analysis of PLS, the soil pH value and the content of available K were important to the volatile components of the Ferula ferulaeoides. GRA showed that the pH value, water content and available K in the soil were large correlation to the volatile oil of the Ferula ferulaeoides. CONCLUSION The contents of volatile constituents and soil factors of different habitats were significantly different. The soil pH value, the content of available K, and natural water content are the main factors that influence the content of volatile components of Ferula ferulaeoides.