Influence of water application on photosynthesis, growth and biomass characteristics in Jatropha curcas

Authors

  • Krishan K Verma Department of Botany, University of Lucknow, Lucknow- 226 007 (U.P.), India
  • Shweta Vatsal Department of Botany, University of Lucknow, Lucknow- 226 007 (U.P.), India
  • Ramwant K Gupta Department of Plant Physiology, College of Basic Science and Humanities (CBSH), G.B. Pant University of Agriculture and Technology, Pantnagar – 263145 (Uttarakhand), India
  • Sanjay Ranjan Division of Plant Physiology, National Botanical Research Institute, Lucknow- 226001 (U.P.), India
  • Chhedi Lal Verma Central Soil Salinity Research Institute, Lucknow- 226 005 (U.P.), India
  • Munna Singh Department of Botany, University of Lucknow, Lucknow- 226 007 (U.P.), India

Keywords:

Biomass, CO2 assimilation, growth, stomatal conductance, transpiration rate, water use efficiency

Abstract

The effect of CO2 assimilation, stomatal conductance, transpiration rate, water use efficiency, growth and biomass productivity were studied in Jatropha curcas under different moisture levels of water (100, 75, 50 and 25% of field capacity). CO2 assimilation, stomatal conductance, transpiration, growth and biomass were reduced in response to decreasing moisture content of water.  The decreased CO2 assimilation during irrigation stress was found largely dependent on stomatal closure, which reduced available internal CO2 concentration and restricted water loss through transpiration based on leaf gas exchange hypothesis linked with stomatal limitation for photosynthesis to reduce carbon uptake followed by loss in leaf area expansion which declined total carbon uptake, growth and biomass in Jatropha curcas seedlings.

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Author Biographies

Krishan K Verma, Department of Botany, University of Lucknow, Lucknow- 226 007 (U.P.), India

Department of Botany, University of Lucknow, Lucknow- 226 007 (U.P.), India

Shweta Vatsal, Department of Botany, University of Lucknow, Lucknow- 226 007 (U.P.), India

Department of Botany, University of Lucknow, Lucknow- 226 007 (U.P.), India

Ramwant K Gupta, Department of Plant Physiology, College of Basic Science and Humanities (CBSH), G.B. Pant University of Agriculture and Technology, Pantnagar – 263145 (Uttarakhand), India

Department of Plant Physiology, College of Basic Science and Humanities (CBSH), G.B. Pant University of Agriculture and Technology, Pantnagar – 263145 (Uttarakhand), India

Sanjay Ranjan, Division of Plant Physiology, National Botanical Research Institute, Lucknow- 226001 (U.P.), India

Division of Plant Physiology, National Botanical Research Institute, Lucknow- 226001 (U.P.), India 

Chhedi Lal Verma, Central Soil Salinity Research Institute, Lucknow- 226 005 (U.P.), India

Central Soil Salinity Research Institute, Lucknow- 226 005 (U.P.), India

Munna Singh, Department of Botany, University of Lucknow, Lucknow- 226 007 (U.P.), India

Department of Botany, University of Lucknow, Lucknow- 226 007 (U.P.), India

Published

21-10-2012

How to Cite

Verma, K. K., Vatsal, S., Gupta, R. K., Ranjan, S., Verma, C. L., & Singh, M. (2012). Influence of water application on photosynthesis, growth and biomass characteristics in Jatropha curcas. Current Botany, 3(4). Retrieved from https://updatepublishing.com/journal/index.php/cb/article/view/1416

Issue

Volume 3, Issue 4, 2012

Section

Regular Articles