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Pakistan Journal of Biological Sciences
  Year: 2006 | Volume: 9 | Issue: 5 | Page No.: 974-978
DOI: 10.3923/pjbs.2006.974.978
 
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Physiological Changes in Pea (Pisum sativum L. cv.Green Arrow) under NaCl Salinity

Najafi, F., R.A. Khavari-Nejad , F. Rastgar-jazii and M. Sticklen

Abstract:
The effects of salt-stress on physiological parameters in pea (Pisum sativum L. cv. Green Arrow) plants were investigated. Ten weeks old pea plants were treated with NaCl at 0, 50, 100 and 150 mM in nutrient solution. Plants were grown under controlled environment and harvested at each 3 days interval for measurement of physiological parameters. With increasing NaCl concentration in nutrient solution, photosynthetic rate, relative water content, stomatal conductance and chlorophylls contents decreased while CO2 compensation concentration and free proline content increased. The effects of salinity were increased when higher NaCl concentrations were accompanied with increasing stress duration such that plants died in 150 mM NaCl after 15 days. Results indicated that Pea plants could tolerate 50 and 100 mM NaCl, however, were sensitive to 150 mM NaCl. In Plants treated with high concentrations of NaCl Pn, gs and chlorophylls contents were strongly decreased at the initial stages of impose salinity.
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How to cite this article:

Najafi, F., R.A. Khavari-Nejad , F. Rastgar-jazii and M. Sticklen , 2006. Physiological Changes in Pea (Pisum sativum L. cv.Green Arrow) under NaCl Salinity. Pakistan Journal of Biological Sciences, 9: 974-978.

DOI: 10.3923/pjbs.2006.974.978

URL: https://scialert.net/abstract/?doi=pjbs.2006.974.978

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