CORRELATIONS OF PIGMENTS AND OTHER CHEMICAL COMPONENTS OF PRUNUS VIRGINIANA SCHUBERT' IN DIFFERENT LEAF POSITION

The concentration of pigments and other chemical components including anthocyanins,chlorophyll a,chlorophyll b,carotenoids,solubility sugar and 10 kinds of macroelement and microelement were investigated using P.virginiana Schubert',and calculated the relativity of the data.The result indicated the leaf color turn mauve when the ratio of anthocyanin and total chlorophyll was above 1:2.84,and it turn amaranth when the ratio of anthocyanin and total chlorophyll was above 1:1.14 the change of leaf color was determined by the synthesis of anthocyanin and the decomposability of chlorophyll and carotenoids.The soluble sugar and the anthocyanin had a positive correlativity.The contents of Ca and Mn were high in the leaf of P.virginiana Schubert',especially the Mn.The mineral elements such as P,K,Ca,Fe,Mn,Cu had stronger influence with the anthocyanin in the 10 kinds of mineral elements. The content of P had a highly negative correlation with anthocyanin,and K,Ca,Fe,Mn,Cu all had very significant positive correlation with anthocyanin.The mineral elements had a resemble correlation with chlorophyll and carotenoids.The contents of N,Mg had an obvious effect on the content of chlorophyll and carotenoids,and N,Mg had a very significant positive correlation with them.