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Journal of Desert Research ›› 2019, Vol. 39 ›› Issue (4): 139-148.DOI: 10.7522/j.issn.1000-694X.2018.00106

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Photosynthesis Characteristics of Periploca sepium under Drought Stress in Shell-sand Habitat in the Yellow River Delta

Wang Xiao1,2, Xia Jiangbao2, Zhou Dongxing1, Zhao Ziguo2, Dong Linshui2   

  1. 1. College of Resources and Environment, Northeast Agricultural University, Harbin 150030, China;
    2. Shandong Key Laboratory of Eco-Environmental Science for Yellow River Delta, Binzhou University, Binzhou 256603, Shandong, China
  • Received:2018-09-03 Revised:2018-09-30 Online:2019-07-20 Published:2019-07-12

Abstract: Water is the main limiting factor of vegetation growth in the Ridge of Shell Beach in the Yellow River Delta. Four year old Periploca sepium were used as experimental materials. Four soil water content levels, including control With the increase of drought stress, the maximum photochemical efficiency, the actual photochemical efficiency and the electron transport rate decreased significantly, but the non-photochemical quenching coefficient increased significantly, indicating an increasing heat dissipation of light energy. The leaves of P. sepium had a strong ability to adapt to drought stress by regulating photosynthetic efficiency, and showed a certain degree of plasticity and adaptability to drought stress habitat.

Key words: Periploca sepium, shell sand, drought stress, gas exchange parameter, chlorophyll fluorescence

CLC Number: