Evaluation of salinity tolerance of three olive (Olea europaea L.) cultivars

Tarom region of Zanjan province is one of the olive production centers in Iran, which faced a crisis of salinity stress following the salinization of water resources. The selection of salinity tolerant cultivars using pivotal characteristics is one of the interesting challenges. This study was condu...

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Main Authors: Mahmoud Azimi, Tooradj Khoshzaman, Mehdi Taheri, Ahmadreza Dadras
Format: Article
Language:Bulgarian
Published: University of Zagreb, Faculty of Agriculture 2021-09-01
Series:Journal of Central European Agriculture
Subjects:
Online Access:https://jcea.agr.hr/articles/772640_Evaluation_of_salinity_tolerance_of_three_olive_(Olea_europaea_L_)_cultivars_en.pdf
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author Mahmoud Azimi
Tooradj Khoshzaman
Mehdi Taheri
Ahmadreza Dadras
author_facet Mahmoud Azimi
Tooradj Khoshzaman
Mehdi Taheri
Ahmadreza Dadras
author_sort Mahmoud Azimi
collection DOAJ
description Tarom region of Zanjan province is one of the olive production centers in Iran, which faced a crisis of salinity stress following the salinization of water resources. The selection of salinity tolerant cultivars using pivotal characteristics is one of the interesting challenges. This study was conducted to investigate the behavior of ‘Zard’, ‘Abou-satl’, and ‘Arbequina’ cultivars in the context of using marginal waters. Therefore, one-year-old self-rooted plants of these cultivars were potted and irrigated with 2, 5, 8, and 12 dS/m saline water for three months in the greenhouse, and certain physiological and morphological features were studied. The results show that ‘Zard’ and ‘Abou-Satl’ cultivars tolerated salinity of 8 and 12 dS/m, maintained their photosynthesis in medium salinity (5 dS/m), and grew well in these conditions. In contrast, the ‘Arbequina’ cultivar exhibited extreme susceptibility to salinity. In the high salinities, there was a lower slope in the increase of Na+ concentration in the leaves of the ‘Zard’ cultivar. Also wet and dry biomass in this cultivar decreased much less than the others. A more severe reduction in the transpiration of the ‘Zard’ cultivar indicated better efficiency of water retention mechanisms and high water use efficiency. The photosynthesis rate of ‘Zard’ and ‘Abou-Satl’ cultivars were less affected under salinity stress. They reduced the accumulation of Na+ and increased the K+ concentration in leaves. These two cultivars had suitable responses to salinity and were recommended for planting in regions affected by salinity.
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spelling doaj.art-2df279e518004656b0b049e079c806482022-12-21T22:27:57ZbulUniversity of Zagreb, Faculty of AgricultureJournal of Central European Agriculture1332-90492021-09-0122357158110.5513/JCEA01/22.3.3167Evaluation of salinity tolerance of three olive (Olea europaea L.) cultivarsMahmoud AzimiTooradj KhoshzamanMehdi TaheriAhmadreza DadrasTarom region of Zanjan province is one of the olive production centers in Iran, which faced a crisis of salinity stress following the salinization of water resources. The selection of salinity tolerant cultivars using pivotal characteristics is one of the interesting challenges. This study was conducted to investigate the behavior of ‘Zard’, ‘Abou-satl’, and ‘Arbequina’ cultivars in the context of using marginal waters. Therefore, one-year-old self-rooted plants of these cultivars were potted and irrigated with 2, 5, 8, and 12 dS/m saline water for three months in the greenhouse, and certain physiological and morphological features were studied. The results show that ‘Zard’ and ‘Abou-Satl’ cultivars tolerated salinity of 8 and 12 dS/m, maintained their photosynthesis in medium salinity (5 dS/m), and grew well in these conditions. In contrast, the ‘Arbequina’ cultivar exhibited extreme susceptibility to salinity. In the high salinities, there was a lower slope in the increase of Na+ concentration in the leaves of the ‘Zard’ cultivar. Also wet and dry biomass in this cultivar decreased much less than the others. A more severe reduction in the transpiration of the ‘Zard’ cultivar indicated better efficiency of water retention mechanisms and high water use efficiency. The photosynthesis rate of ‘Zard’ and ‘Abou-Satl’ cultivars were less affected under salinity stress. They reduced the accumulation of Na+ and increased the K+ concentration in leaves. These two cultivars had suitable responses to salinity and were recommended for planting in regions affected by salinity.https://jcea.agr.hr/articles/772640_Evaluation_of_salinity_tolerance_of_three_olive_(Olea_europaea_L_)_cultivars_en.pdfgas exchangegrowth parametersnutrientsphotosynthesis‘zard’ cultivar
spellingShingle Mahmoud Azimi
Tooradj Khoshzaman
Mehdi Taheri
Ahmadreza Dadras
Evaluation of salinity tolerance of three olive (Olea europaea L.) cultivars
Journal of Central European Agriculture
gas exchange
growth parameters
nutrients
photosynthesis
‘zard’ cultivar
title Evaluation of salinity tolerance of three olive (Olea europaea L.) cultivars
title_full Evaluation of salinity tolerance of three olive (Olea europaea L.) cultivars
title_fullStr Evaluation of salinity tolerance of three olive (Olea europaea L.) cultivars
title_full_unstemmed Evaluation of salinity tolerance of three olive (Olea europaea L.) cultivars
title_short Evaluation of salinity tolerance of three olive (Olea europaea L.) cultivars
title_sort evaluation of salinity tolerance of three olive olea europaea l cultivars
topic gas exchange
growth parameters
nutrients
photosynthesis
‘zard’ cultivar
url https://jcea.agr.hr/articles/772640_Evaluation_of_salinity_tolerance_of_three_olive_(Olea_europaea_L_)_cultivars_en.pdf
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