Light-response curve of photosynthesis and model fitting in leavesof Mangifera indica under different soil water conditions
| Autor: | X.G. Liu, K. Hao, W.H. Zhang, X.Q. Yang, Y.L. Li, Y. Cong, Q.L. Yang |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
Light response Physiology Soil science 04 agricultural and veterinary sciences Plant Science Photosynthesis 01 natural sciences Exponential function Hyperbola lcsh:QK1-989 Field capacity field capacity light-compensation point light-response curve model comparison net photosynthetic rate Compensation point lcsh:Botany Soil water 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Mangifera 010606 plant biology & botany Mathematics |
| Zdroj: | Photosynthetica, Vol 57, Iss 3, Pp 796-803 (2019) |
| ISSN: | 1573-9058 0300-3604 |
| Popis: | A pot experiment was performed to study the light-response curve of photosynthesis (PN-PAR curve) of Mangifera indica and the applicability of light-response models under different soil water conditions. The experimental data were fitted and analyzed using the rectangular hyperbola model, the nonrectangular hyperbola model, the exponential model, the modified rectangular hyperbola model, and the kinetic model. The results showed that the optimal range of relative soil water content (RSWC) for the normal photosynthesis of M. indica was 45.1-77.3%. The modified rectangular hyperbola model could well fit the PN-PAR curves and photosynthetic parameters under wide range of soil water conditions (RSWC 23.3-77.3%). The rectangular hyperbola model, the nonrectangular hyperbola model, the exponential model, and the kinetic model could only be used to fit the PN-PAR curves of M. indica under mild and moderate drought stress (RSWC 45.1-77.3%). |
| Databáze: | OpenAIRE |
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