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- Title
Diurnal Variation of Photosynthetic Physiological Characteristics of Kadsura coccinea (Lem.) A. C. Smith.
- Authors
Zongyou CHEN; Shengfeng CHAI; Xiaoxue QI; Yujing Wei; Huafei CEN
- Abstract
[Objectives] This study was conducted to investigate the diurnal variations of photosynthetic and physiological characteristics in 3-year-old Kadsura coccinea (Lem.) A. C. Smith plants. [Methods] A Li-6400 portable photosynthetic system was used to study the diurnal variations of the photosynthetic physiological characteristics of K coccinea. [Results] The diurnal variation of the net photosynthetic rate (Pn) of K. coccinea leaves showed a "double peak" curve, and there was a lunch break at noon. The maximum value of Pn [4.51 mmol/(m2s)] appeared atl0;00, and the daily average Pn was 3.98 mol/(m2s); and the step- wise regression analysis showed that photosynthetically active radiation {PAR} and stomatai conductance (Gs) were the main factors affecting Pn. The partial correlation analysis and path analysis showed that the order of effects on Pn was Gs >PAR. [Conclusions]This study provides a reference for further research on the development and utilization of K. coccinea.
- Subjects
PHOTOSYNTHETIC rates; REGRESSION analysis; STATISTICAL correlation; RESEARCH &; development
- Publication
Agricultural Biotechnology (2164-4993), 2021, Vol 10, Issue 4, p48
- ISSN
2164-4993
- Publication type
Article