Determination and Comparison of Leaf Pigment Content of Punica granatum L.Hybrid with Different Leaf Color

Spectrophotometry was used to study the contents of three pigments,chlorophyll,carotenoid,and anthocyanin,in the leaves of eight pomegranate trees and their parents.The results showed that at the beginning of growing period,the anthocyanin content of the four pomegranate trees with red leaves was higher than the control tree.The anthocyanin content of No.5 individual plant was the highest(4.12 mg/g).The dynamic trends of chlorophyll and carotenoids of the four pomegranate trees with green yellow leaves were consistent with the contrast tree.The chlorophyll content and the chlorophyll/carotenoids content of No.4 were the highest,the chlorophyll a/b content of No.3 was the lowest.During vigorous growing period,the dynamic trends of pigments including chlorophyll,carotenoid and anthocyanin of eight individual plants were consistent;there was no significant difference comparing with the control.Analysis of variance indicated that there was a significant difference in the contents of chlorophyll and carotenoid between different trees in different growth periods and the content of anthocyanin between different trees,while the value of chlorophyll/carotenoids between different trees was not obvious.