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Journal of Applied Sciences
  Year: 2017 | Volume: 17 | Issue: 5 | Page No.: 253-258
DOI: 10.3923/jas.2017.253.258
Effect of Water Stress on Growth and Mineral Composition of Salvadora persica and Atriplex halimus in Al-Ahsa Oasis, Saudi Arabia
Mohammed Refdan Alhajhoj

Abstract:
Background and Objective: Water scarcity is one of the major problems faced by countries in arid regions worldwide. Saudi Arabia is an arid country where water shortage hampers land productivity. This study aimed to investigate the growth of two landscape trees under different water stress conditions, to establish sustainable windbreaks around irrigated agriculture areas and thus improve desert microclimates. Materials and Methods: A pot study was conducted on two tree species, Salvadora persica and Atriplex halimus, with four water stress treatments under field conditions, i.e., irrigation at 0% (T-1), 25% (T-2), 50% (T-3) and 75% (T-4) depletion of soil moisture of field capacity. Groundwater with a total salinity of 1200 mg L–1 was used for irrigation. Data were analyzed statistically by using SAS. Results: With increasing water stress, the plant height and fresh biomass of Salvadora persica increased, while those of Atriplex halimus decreased significantly. The protein content of plant tissue in Salvadora persica was the highest under the 75% water stress treatment. In Salvadora persica, with increasing moisture stress, the K and Ca concentrations increased, while P, Mg and Na concentrations decreased. In Atriplex halimus, with increasing water stress, the K, Ca, Mg and Na concentrations increased while P and Na concentrations decreased. Conclusion: Both Salvadora persica and Atriplex halimus (landscape trees) proved to be highly drought-resistant when grown under water stress conditions. Our results indicated that these two plant species could produce economical biomass yields in arid environments, when irrigated at 75% soil moisture depletion.
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How to cite this article:

Mohammed Refdan Alhajhoj , 2017. Effect of Water Stress on Growth and Mineral Composition of Salvadora persica and Atriplex halimus in Al-Ahsa Oasis, Saudi Arabia. Journal of Applied Sciences, 17: 253-258.

DOI: 10.3923/jas.2017.253.258

URL: https://scialert.net/abstract/?doi=jas.2017.253.258

 
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