Welcome to visit Scientia Silvae Sinicae,Today is

Scientia Silvae Sinicae ›› 2014, Vol. 50 ›› Issue (8): 174-178.doi: 10.11707/j.1001-7488.20140825

Previous Articles     Next Articles

Comparison of Leaf Photosynthetic Physiological Characteristics in Vive Carya illinoensis Varieties

Ling Hua1,2, Huang Jianqin1,2, Wen Guosheng1, Wang zhengjia1,2, Yang Xianyu1,2, Yuan Ziqian1,3, Zheng Chaochao2, Shen Yifan1,2   

  1. 1. The Nurturing Station for the State Key Laboratory of Subtropical Silviculture Zhejiang A&F University Lin'an 311300;
    2. School of Forestry and Biotechnology Zhejiang A&F University Lin'an 311300;
    3. Hangzhou Academy of Forestry Hangzhou 310016
  • Received:2013-06-27 Revised:2013-10-25 Online:2014-08-25 Published:2014-07-31
  • Contact: 温国胜

Abstract:

In this study, a field experiment was conducted to compare photosynthetic physiological characteristics and the chlorophyll fluorescence parameters in leaves among five Carya illinoensis varieties, including Farley, Colby, Shoshoni, Cheyenne and Mandan. The results showed that there were significant (P<0.05) or highly significant (P<0.01) differences in minimal fluorescence (Fo), maximum fluorescence (Fm), PSⅡ potential activity (Fv/Fo) and non-photochemical quenching (NPQ) among the five varieties. The Fo and Fm of Shoshoni were higher than that of the other cultivars. The PSⅡ primary energy conversion efficiency (Fv/Fm) and PSⅡ potential activity (Fv/Fo) of Mandan were higher than those of the others, while the value of NPQ was lower. The light compensation point (LCP) of Mandan was significantly lower than that of the other varieties, indicating that it had a strong ability of using low light. Mandan and Shoshoni had higher maximum net photosynthetic rate (Amax) and relative chlorophyll content (SPAD). Results of the correlation analysis showed that there were significant positive correlations between Fv and Fv/Fm, Amax and SPAD. A significantly negative correlation was found between NPQ and Fv/Fo.

Key words: Carya illinoensis, photosynthetic physiological characteristics, chlorophyll fluorescence, relative chlorophyll content, correlation

CLC Number: