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Hosseini, R.
- The Role of Cosmotic Adjustment On Drought Stress of Some Olive Cultivars
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Authors
Affiliations
1 Department of Biotechnology, Faculty of Engineering and technical, Imam Khomeini International University, Qazvin, IR
2 Department of plant and Seed Improvement, Agricultural and Natural Resources Research Centre of Qazvin, Shahid Beheshti Bvl. Qazvin State, IR
3 Department of Irrigation, Faculty of engineering and technical, Imam Khomeini International University, Qazvin, IR
1 Department of Biotechnology, Faculty of Engineering and technical, Imam Khomeini International University, Qazvin, IR
2 Department of plant and Seed Improvement, Agricultural and Natural Resources Research Centre of Qazvin, Shahid Beheshti Bvl. Qazvin State, IR
3 Department of Irrigation, Faculty of engineering and technical, Imam Khomeini International University, Qazvin, IR
Source
Indian Journal of Science and Technology, Vol 6, No 2 (2013), Pagination: 4015-4020Abstract
Generally native genotypes of Olives have different reaction against drought stress. The current research was conducted in order to determine the metabolic index under drought stress conditions in olive cultivars (Nabali, Gordal, Arbequine, Zard, Roghani and Feshomi). It was designed on a RCBD experiment based on factorial with full irrigation and drought stress treatments in three replicates. The evaluated parameters in this research were several metabolic solutions, including, sucrose, starch, proline, and betaine. There were significant differences between control treatment and drought stress in different cultivars for the evaluated parameters. The amount of sucrose in three continual experiments showed significant differences between two control treatments and drought stress. Highest Sucrose was measured in Gordal (40.83 mg/g-1) and lowest amount was measured in Roghani cultivar (18.88 mg/g-1) in the fresh weight samples. Sucrose content increased under drought stress intensity and starch content decreases under water stress condition (20.83 and 37.75 mg/g-1 respectively). Proline content increased under drought stress conditions in the cultivars which is Nabali; 12.33 and Arbequine; 9.64 Micro mol/g-1 in the fresh weight samples respectively), however, it's the reason for differences of physiological and bio-chemical behaviors in these cultivars. Betaine content increased under water stress conditions (101.342 Micro mol/g-1 in fresh weight samples), so far that contrary to the metabolic solutions betaine is not quickly metabolized after drought stress and it may be considered as an indices of previous stress inside the plant, and it could be concluded that Gordal and Nabali were the best cultivars compared to Arbequine, Zard, Roghani and Feshomi due to drought resistance levels.Keywords
Olive, Drought Stress, Proline, Trehalose, BetaineFull Text
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