Comparison of Photosynthesis and Growth Characteristics of Five Cerasus humilis Varieties in Jining region
REN Jingpeng
ZHANG Yuewu
LI Shihe
ZHANG Zhongzhen
Abstract：Cerasus humilis contains various nutrients with high calcium content,with strong stress resistance,high economic and ecological value.The differences in growth indicators,photosynthetic parameters,chlorophyll content,and dry matter accumulation among five C.humilis varieties introduced to Jining region were studied.The results showed that there were significant differences in internode length,leaf size,quantity,color,and texture between the two series of C.humilis.The content of three pigments in the leaves of the Nongda series was lower than that of the Jingou series.'Jingou 6'had the highest net photosynthetic rate,stomatal conductance,and transpiration rate,while'Nongda 7'had the lowest.The intercellular carbon dioxide concentration of'Jingou 6'was the lowest,while that of'Nongda 4'was the highest.The five introduced C.humilis varieties all had a relatively fast growth rate.After three years of planting,the plant height,base diameter,and crown width of'Jingou 6'were significantly higher than those of'Nongda 7'.The stem dry matter content of C.humilis was slightly higher than that of its leaves.The three varieties in the Jingou series had higher dry matter accumulation in their stems and leaves,while the two varieties in the Nongda series had lower dry matter accumulation.Without considering fruit quality,the Jingou series is superior to the Nongda series,with'Jingou 6'having the best growth and development in all indicators,making it suitable for promotion and planting in Jining region.
Keywords：Cerasus humilisphotosynthesischlorophyllgrowth characteristics
Publication Date：2025-08-28
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：6( 19-23,18 )