African Journal of
Biotechnology

  • Abbreviation: Afr. J. Biotechnol.
  • Language: English
  • ISSN: 1684-5315
  • DOI: 10.5897/AJB
  • Start Year: 2002
  • Published Articles: 12487

Full Length Research Paper

Photosynthetic responses of pea plants (Pisum sativum L. cv. Little marvel) exposed to climate change in Riyadh city, KSA

Akram Ali1,5*, Ahmed Alfarhan1, Ibrahim Aldjain2, Nagat Bokhari1, Wafa’a Al-Taisan3, Khaled Al-Rasheid4 and Saleh Al-Quraishi4
1Botany and Microbiology Department, College of Science, King Saud University, Riyadh 11451, PO Box: 2455, KSA. 2General Admin. of Gardens and landscape, Riyadh Municipality, P.O Box 156444 Riyadh 11778, KSA. 3Botany Department, College of Science, King Faisal University, Damam 31113, PO Box: 838, KSA. 4Zoology Department, College of Science, King Saud University, Riyadh 11451, PO Box: 2455, KSA. 5Department of Botany, Faculty of Science, Zagazig University, Zagazig, Egypt.
Email: [email protected]

  •  Accepted: 10 July 2008
  •  Published: 04 August 2008

Abstract

Pots study was conducted to determine interactive effects of climate change (NO2, SO2 and O3) on photosynthetic responses in pea. The seeds of pea plants (Pisum sativum L. cv. Little marvel) were grown full-season in three pots arranged at four localities in Riyadh city, KSA. Photosynthetic rates (Pn) were measured three times during vegetative and reproductive stages with portable gas exchange system (LI-COR 6400). In general, Pn rates were highly stimulated at Elsefarat area and highly reduced at the 2nd Industrial city but variable at other localities in Riyadh city. The data showed continuous increases in Pn rates during pre-flowering and early seed formation and drops during late seed formation stage. This study supports that the agricultural areas could have a protective role against adverse impacts of gases exposure in highly polluted areas.

 

Key words: Photosynthesis, growth stages, pea, gases, KSA.

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This article is published under the terms of the Creative Commons Attribution License 4.0

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