Evaluation of some physiological responses to drought stress in grafted and ungrafted almond rootstocks

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MORADI HOSEIN; ESNA ASHARI MAHMOOD; ERSHADI AHMAD

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Journal: Iranian Journal of Horticultural Science Year:2019 | Volume:50 | Issue:2 Page(s): 311-323

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Information Journal Paper

Title

Evaluation of some physiological responses to drought stress in grafted and ungrafted almond rootstocks

Author(s)

MORADI HOSEIN | ESNA ASHARI MAHMOOD | ERSHADI AHMAD | Issue Writer Certificate

Keywords

Chlorophyll fluorescenceQ1

clonal rootstockQ1

prolineQ2

relative water contentsQ1

seedling rootstockQ2

Abstract

The effect of drought stress were studied on some physiological aspects of five grafted and ungrafted rootstocks including GF677, Garnem, peach seedlings, almond seedlings and a selected local almond ×peach hybrid (LAP), with Ferragnes cultivar as scion. Three different drought stress levels including moderate (Ψ soil=-0. 9 Mpa) sever (Ψ soil=-1. 5 Mpa) and a control (Ψ soil=-0. 3 Mpa) were applied in a randomized complete block design as factorial with three replications in pot plants during four weeks. Physiological traits including chlorophyll (Chl) fluorescence indices, leaf relative water contents (RWC), membrane stability index (MSI), free proline and concentrations of leaf pigments were recorded. Results showed that photochemical efficiency of photosystem II (Fv/Fm), RWC, Chl a, Chl b and total Chl were reduced significantly under drought stress while minimum fluorescence (F0), MSI and Free proline were increased noticeably. Drought stress affected significantly on evaluated traits in ungrafted rootstocks compared to grafted ones. According to results, almond seedlings, GF677 and local LAP almost showed similar responses to drought stress and had more tolerance than Garnem rootstock. Peach seedlings were affected significantly by drought stress more than the other rootstocks. Present study suggests Chlorophyll fluorescence index as a simple trait for evaluation of almond rootstocks exposed to sever drought stress.

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APA: Copy

ESNA ASHARI, MAHMOOD, & ERSHADI, AHMAD. (2019). Evaluation of some physiological responses to drought stress in grafted and ungrafted almond rootstocks. IRANIAN JOURNAL OF HORTICULTURAL SCIENCES (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES), 50(2 ), 311-323. SID. https://sid.ir/paper/148326/en

Vancouver: Copy

ESNA ASHARI MAHMOOD, ERSHADI AHMAD. Evaluation of some physiological responses to drought stress in grafted and ungrafted almond rootstocks. IRANIAN JOURNAL OF HORTICULTURAL SCIENCES (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES)[Internet]. 2019;50(2 ):311-323. Available from: https://sid.ir/paper/148326/en

IEEE: Copy

MAHMOOD ESNA ASHARI, and AHMAD ERSHADI, “Evaluation of some physiological responses to drought stress in grafted and ungrafted almond rootstocks,” IRANIAN JOURNAL OF HORTICULTURAL SCIENCES (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES), vol. 50, no. 2 , pp. 311–323, 2019, [Online]. Available: https://sid.ir/paper/148326/en

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