Sodium and potassium allocation under drought stress in Atlas mastic tree (Pistacia atlantica subsp. mutica)
P Fayyaz , E Etemadi, N Julaiee-Manesh, R Zolfaghari
iForest - Biogeosciences and Forestry, Volume 6, Issue 2, Pages 90-94 (2013)
doi: https://doi.org/10.3832/ifor0856-006
Published: Feb 07, 2013 - Copyright © 2013 SISEF
Research Articles
Abstract
Sodium and potassium ions have crucial roles in drought tolerant mechanisms of plants. In a pot experiment, seedlings of Pistacia atlantica subsp. mutica were cultivated in a silty clay soil (Kex=21 mg/l, Naex=143 mg/l) and exposed to different levels of soil water content (90, 65 and 45% FC). P. atlantica maintained leaf transpiration rate, and relative water content and cation (Na+ and K+) content of different organs under moderate water deficit (above permanent wilting point). At higher water shortage, the amount of transpiration rate and the relative water content of tissues were reduced, but the amount of Na+ and K+ remained unaffected even under severe drought stress (below permanent wilting point). Generally, the amount of K+ content in plant organism was higher than that of Na+. The amount of root to shoot Na+ was higher than that of K+. Potassium contents of leaves and stems were positively related with transpiration rate, whereas Na+ contents of roots and stems were positively related with root relative water content. Roots and stem of Atlas mastic tree seedlings exhibit high drought tolerance index for Na+ and K+.
Keywords
Pistacia atlantica Desf., Univalent Cations, Physiological Traits, Ion Translocation, Water Deficit
Authors’ Info
Authors’ address
E Etemadi
N Julaiee-Manesh
R Zolfaghari
Institut of Natural Resources and Environment, University of Yasouj, 75918-74831 Yasouj (Iran)
Corresponding author
Paper Info
Citation
Fayyaz P, Etemadi E, Julaiee-Manesh N, Zolfaghari R (2013). Sodium and potassium allocation under drought stress in Atlas mastic tree (Pistacia atlantica subsp. mutica). iForest 6: 90-94. - doi: 10.3832/ifor0856-006
Academic Editor
Giustino Tonon
Paper history
Received: Nov 07, 2012
Accepted: Nov 14, 2012
First online: Feb 07, 2013
Publication Date: Apr 02, 2013
Publication Time: 2.83 months
Copyright Information
© SISEF - The Italian Society of Silviculture and Forest Ecology 2013
Open Access
This article is distributed under the terms of the Creative Commons Attribution-Non Commercial 4.0 International (https://creativecommons.org/licenses/by-nc/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
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