Studies on Fertilization of Young Acer truncatum Bunge Ⅱ. Effect on Flavonoid,Cholorogenic Acid and Nutrition Elements in Leaves

By determining the content of flavonoid,cholorogenic acid and ten nutrition elements in the leaves of Acer truncatum treated by 9 kinds of nutrition supplying, by analyzing the principal components, the dynamic relationship among nutrition elements and the content of flavonoid and cholorogenic acid were investigated. The result indicated that the content of flavonoid and cholorogenic acid in leaves of the two best fertilization treatments was 100%NFA48150% higher than the control. The effect of treatment on the content and the accumulation content of nutrition elements was similar, but the effects on flavonoid and cholorogenic acid was negatively correlated. Of the five principal factors affecting the content of flavonoid and cholorogenic acid, two were found to be principal: factors of promoting photosynthesis and nitrogen, and factors of promoting enzyme react. The accumulated variation cortribution rate of the two factors was more than 87% and the loading of P, Cu and Mg was the biggest among the loading matrix of principal components.