Comparative Study of Photosynthetic Physiological Characteristics Among Different Chionanthus Retusus Varieties
YANG Yutong
XIE Huicheng
LI Jihong
Abstract：This study aimed to investigate the photosynthetic physiological characteristics of four new varieties of Chionanthus retusus with distinct leaf colors:'Xue zao hua'and'Yin zhen'compared to the golden-leafed'Yuan jin'and'Qian jin'.The light response curves and photosynthetic pigment contents of these varieties were measured.The results revealed that'Xue zao hua'had the highest maximum net photosynthetic rate(Pnmax),and'Yin zhen'had the strongest shade tolerance,both superior to the golden-leafed'Yuan jin'and'Qian jin'.The content and proportion of photosynthetic pigments are important factors affecting the photosynthetic characteristics of C.retusus.A positive correlation was observed between the chlorophyll content and Pnmax among the four types of C.retusus.The chlorophyll content may be the main reason for the differences in Pnmax among the varieties of C.retusus.These findings offer valuable references for optimizing the suitability of tree species and community structures in ecological restoration projects.
Keywords：Chionanthus retususnet photosynthetic ratechlorophyll content
Publication Date：2025-02-28
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：5( 15-19 )