Acta Physiologiae Plantarum

, Volume 34, Issue 4, pp 1551–1563

Photosynthetic rate model in response to environmental parameters for Avicennia marina (Forssk.) Veih. in an Indian mangrove forest

  • Tanumi Kumar
  • Sushma Panigrahy
  • K. R. Manjunath
  • Chandra Prakash Singh
Original Paper

DOI: 10.1007/s11738-012-0953-7

Cite this article as:
Kumar, T., Panigrahy, S., Manjunath, K.R. et al. Acta Physiol Plant (2012) 34: 1551. doi:10.1007/s11738-012-0953-7
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Abstract

Photosynthetic rate models at leaf levels, viz., upper and middle canopy leaves were constructed separately in response of photosynthesis of Indian Avicennia marina to environmental variables as a major indication. The final expressions for the rates of photosynthesis were achieved by incorporating a combination of parameters involved in two separate models (already existing); namely, biochemical photosynthetic model and stomatal conductance model as inputs to two-stage least squares fitting regression method. The distinctiveness of the responses of photosynthesis in the two types of leaves to diurnally changeable factors, including solar radiation, temperature, CO2 concentrations, water content in the atmosphere, vapour pressure deficit and relative humidity, were investigated in the respective models. Analyses of the physiological data of the leaves measured in the months of January–February indicated satisfactory performance of the models in the simulation of the respective photosynthetic rates (r2 values, 0.97 and 0.96 for upper and middle canopy leaves, respectively).

Keywords

Photosynthetic ratesEnvironmental variablesTwo-stage least squares regression fitting models

Supplementary material

11738_2012_953_MOESM1_ESM.pdf (44 kb)
Supplementary material 1 (PDF 43.7 kb)
11738_2012_953_MOESM2_ESM.pdf (43 kb)
Supplementary material 2 (PDF 42.9 kb)
11738_2012_953_MOESM3_ESM.pdf (398 kb)
Supplementary material 3 (PDF 398 kb)

Copyright information

© Franciszek Górski Institute of Plant Physiology, Polish Academy of Sciences, Kraków 2012

Authors and Affiliations

  • Tanumi Kumar
    • 1
  • Sushma Panigrahy
    • 1
  • K. R. Manjunath
    • 1
  • Chandra Prakash Singh
    • 1
  1. 1.Agriculture, Terrestrial Biosphere and Hydrology Group (ABHG), Earth, Ocean, Atmosphere, Planetary Sciences and Applications Area (EPSA), Space Applications Centre (SAC), Indian Space Research Organization (ISRO)AhmedabadIndia