Growth responses and ion regulation of Agrostis stolonifera L. to trinexapac-ethyl under salinity stress

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RASOULI MEHRDAD; HATAMZADEH ABDOLLAH; GHASEMNEZHAD MAHMOOD; SAMIZADEH LAHIJI HABIBOLLAH

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Journal: Iranian Journal of Horticultural Science Year:2018 | Volume:49 | Issue:2 Page(s): 529-538

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Title

Growth responses and ion regulation of Agrostis stolonifera L. to trinexapac-ethyl under salinity stress

Author(s)

RASOULI MEHRDAD | HATAMZADEH ABDOLLAH | GHASEMNEZHAD MAHMOOD | SAMIZADEH LAHIJI HABIBOLLAH | Issue Writer Certificate

Keywords

GrassQ2

potassiumQ2

RWCQ2

sodium chlorideQ1

soluble sugarsQ1

Abstract

Plant growth regulators can improve plant growth under environmental stress conditions. Effect of trinexapac-ethyl (TE) on growth response, soluble sugars content (SSc), proline and ion regulation were investigated in creeping bentGrass (Agrostis stolonifera L. ) under salinity stress. The four salinity levels were applied at rate of control, 5, 10, and 15 dS/m with NaCl and TE treatments were applied with a hand sprayer at three times, biweekly at rate of 0, 60, 120, and 240 mg/100 m-2. Salinity, significantly increased SSc, proline content, leaf and root Na+, leaf K+, leaf Na/K and root Na/K rates but root K+, root length density and relative water content (RWC) decreased. Also, Foliar application of TE increased RWC, root length density, SSc, proline, leaf and root Na+ and K+ concentrations, Na/K as well as leaf and root ratios. Results indicated that taking up more of the K+, maintaining a high K+ concentration in the leaves and reducing the Na+ being transferred from the roots to the shoots could be the mechanisms for Na+ and K+ regulation for salinity tolerance in creeping bentGrass.

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APA: Copy

RASOULI, MEHRDAD, HATAMZADEH, ABDOLLAH, GHASEMNEZHAD, MAHMOOD, & SAMIZADEH LAHIJI, HABIBOLLAH. (2018). Growth responses and ion regulation of Agrostis stolonifera L. to trinexapac-ethyl under salinity stress. IRANIAN JOURNAL OF HORTICULTURAL SCIENCES (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES), 49(2 ), 529-538. SID. https://sid.ir/paper/148049/en

Vancouver: Copy

RASOULI MEHRDAD, HATAMZADEH ABDOLLAH, GHASEMNEZHAD MAHMOOD, SAMIZADEH LAHIJI HABIBOLLAH. Growth responses and ion regulation of Agrostis stolonifera L. to trinexapac-ethyl under salinity stress. IRANIAN JOURNAL OF HORTICULTURAL SCIENCES (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES)[Internet]. 2018;49(2 ):529-538. Available from: https://sid.ir/paper/148049/en

IEEE: Copy

MEHRDAD RASOULI, ABDOLLAH HATAMZADEH, MAHMOOD GHASEMNEZHAD, and HABIBOLLAH SAMIZADEH LAHIJI, “Growth responses and ion regulation of Agrostis stolonifera L. to trinexapac-ethyl under salinity stress,” IRANIAN JOURNAL OF HORTICULTURAL SCIENCES (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES), vol. 49, no. 2 , pp. 529–538, 2018, [Online]. Available: https://sid.ir/paper/148049/en

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