Respective and Interactive Effects of O3 and CO2 and Drought Stress on Photosynthesis, Stomatal Conductance, Antioxidative Ability and Yield of Wheat Plants
Maysa M. Hatata1 , Reem H. Badar1 , Mohammad M. Ibrahim1,2 and Ibrahim A. Hassan1,3 *
1
Department of Botany,
Faculty of Science,
Alexandria University,
El Shatby,
21526
Alexandria
Egypt
2
Faculty of Science,
King Saud University,
Riyadh,
KSA
3
Centre of Excellence in Environmental Studies (CEES),
King Abdelaziz University, P.O.Box 80216,
Jeddah,
21589
KSA
http://dx.doi.org/10.12944/CWE.8.3.10
Effects of O3, Doubled CO2 Concentration and drought stress on wheat (Triticum aestivum L.) plants were studied in open-top chambers (OTC). Under doubled CO2 concentration, grain yield and biomass increased, the SOD activity, and carotenoid (Car) content also increased while relative conductivity yield parameters significantly decreased. But under Elevated O3 concentration, the SOD activity, Carotenooids decresaed. The final result was decreased grain yield and plant biomass. Interactive effects of doubled CO2 and O3 concentrations on soybean were mostly counteractive. However, the beneficial effects of concentration-doubled CO2 is more than compensate the negative effects imposed by doubled O3 and the latter in its turn partly counteracted the positive effects of the former.
Copy the following to cite this article:
Hatata M. M, Badar R. H, Ibrahim M. M, HASSAN I. A. Respective and Interactive Effects of O3 and CO2 and Drought Stress on Photosynthesis, Stomatal Conductance, Antioxidative Ability and Yield of Wheat Plants. Curr World Environ 2013;8(3) DOI:http://dx.doi.org/10.12944/CWE.8.3.10
Copy the following to cite this URL:
Hatata M. M, Badar R. H, Ibrahim M. M, HASSAN I. A. Respective and Interactive Effects of O3 and CO2 and Drought Stress on Photosynthesis, Stomatal Conductance, Antioxidative Ability and Yield of Wheat Plants. Curr World Environ 2013;8(3). Curr World Environ 2013;8(3). Available from: http://cwejournal.org?p=451/
