Exogenous Application of Proline Improved Salt Tolerance in Rice through Modulation of Antioxidant Activities

Fouzia Tabssum, Qamar uz Zaman, Yinglong Chen, Umair Riaz, Waqas Ashraf, Ambreen Aslam, Nusrat Ehsan, Rab Nawaz, Humera Aziz, Shamim ul Sibtain Shah

Research output: Contribution to journalArticle

Abstract

The present study evaluated the role of foliar applied proline to enhance salt tolerance of two rice cultivars with contrasting salt tolerance: Super basmati (salt susceptible) and Shaheen basmati (salt tolerant) in both nursery and field conditions. For pot experiment, salinity stress was imposed by applying 50 mM of NaCl solution to the soil daily for three continuing days, and applications of proline (0, 25, 50, 75 and 100 mM) was applied 25 DAS. For field experiment, the same cultivars were grown in a saline soil (EC = 5.05 d Sm-1) for two growth seasons with or without 50 mM proline applied at seedling stage (15 days after transplanting, DAT), vegetative state (50 DAT) or at both stages. Results from pot experiment revealed that foliar applied 50 mM proline significantly improved the seedling growth under saline stress by reducing electrolyte leakage and improving the water related (relative water contents and water potential), and biochemical attributes(SOD, CAT, MDA, EL and T CHL). Under field conditions, exogenous application of optimized dose of proline both at seedling establishment and vegetative stage significantly improved the performance of rice cultivars by improving tillering dynamics, plant water-relations, chlorophyll pigments, photosynthetic pigments, morphological and yield related traits of rice cultivars. Proline application improved the efficiency of salt tolerance of rice cultivars, Shaheen basmati showed better response in terms of yield than Super basmati. In crux, foliar applications of 50 mM proline at seedling and vegetative stages are more effective for achieving the best kernel yield under saline conditions.
Original languageEnglish
Pages (from-to)140-151
JournalPakistan Journal of Agricultural Research
Volume32
Issue number1
DOIs
Publication statusPublished - Mar 2019

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salt tolerance
proline
antioxidant activity
rice
cultivars
transplanting (plants)
vegetative growth
salt stress
seedlings
pigments
salts
plant-water relations
saline soils
foliar application
tillering
water potential
electrolytes
seedling growth
water content
chlorophyll

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Tabssum, Fouzia ; Zaman, Qamar uz ; Chen, Yinglong ; Riaz, Umair ; Ashraf, Waqas ; Aslam, Ambreen ; Ehsan, Nusrat ; Nawaz, Rab ; Aziz, Humera ; Shah, Shamim ul Sibtain. / Exogenous Application of Proline Improved Salt Tolerance in Rice through Modulation of Antioxidant Activities. In: Pakistan Journal of Agricultural Research. 2019 ; Vol. 32, No. 1. pp. 140-151.
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abstract = "The present study evaluated the role of foliar applied proline to enhance salt tolerance of two rice cultivars with contrasting salt tolerance: Super basmati (salt susceptible) and Shaheen basmati (salt tolerant) in both nursery and field conditions. For pot experiment, salinity stress was imposed by applying 50 mM of NaCl solution to the soil daily for three continuing days, and applications of proline (0, 25, 50, 75 and 100 mM) was applied 25 DAS. For field experiment, the same cultivars were grown in a saline soil (EC = 5.05 d Sm-1) for two growth seasons with or without 50 mM proline applied at seedling stage (15 days after transplanting, DAT), vegetative state (50 DAT) or at both stages. Results from pot experiment revealed that foliar applied 50 mM proline significantly improved the seedling growth under saline stress by reducing electrolyte leakage and improving the water related (relative water contents and water potential), and biochemical attributes(SOD, CAT, MDA, EL and T CHL). Under field conditions, exogenous application of optimized dose of proline both at seedling establishment and vegetative stage significantly improved the performance of rice cultivars by improving tillering dynamics, plant water-relations, chlorophyll pigments, photosynthetic pigments, morphological and yield related traits of rice cultivars. Proline application improved the efficiency of salt tolerance of rice cultivars, Shaheen basmati showed better response in terms of yield than Super basmati. In crux, foliar applications of 50 mM proline at seedling and vegetative stages are more effective for achieving the best kernel yield under saline conditions.",
author = "Fouzia Tabssum and Zaman, {Qamar uz} and Yinglong Chen and Umair Riaz and Waqas Ashraf and Ambreen Aslam and Nusrat Ehsan and Rab Nawaz and Humera Aziz and Shah, {Shamim ul Sibtain}",
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Exogenous Application of Proline Improved Salt Tolerance in Rice through Modulation of Antioxidant Activities. / Tabssum, Fouzia; Zaman, Qamar uz; Chen, Yinglong; Riaz, Umair; Ashraf, Waqas; Aslam, Ambreen; Ehsan, Nusrat; Nawaz, Rab; Aziz, Humera; Shah, Shamim ul Sibtain.

In: Pakistan Journal of Agricultural Research, Vol. 32, No. 1, 03.2019, p. 140-151.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Exogenous Application of Proline Improved Salt Tolerance in Rice through Modulation of Antioxidant Activities

AU - Tabssum, Fouzia

AU - Zaman, Qamar uz

AU - Chen, Yinglong

AU - Riaz, Umair

AU - Ashraf, Waqas

AU - Aslam, Ambreen

AU - Ehsan, Nusrat

AU - Nawaz, Rab

AU - Aziz, Humera

AU - Shah, Shamim ul Sibtain

PY - 2019/3

Y1 - 2019/3

N2 - The present study evaluated the role of foliar applied proline to enhance salt tolerance of two rice cultivars with contrasting salt tolerance: Super basmati (salt susceptible) and Shaheen basmati (salt tolerant) in both nursery and field conditions. For pot experiment, salinity stress was imposed by applying 50 mM of NaCl solution to the soil daily for three continuing days, and applications of proline (0, 25, 50, 75 and 100 mM) was applied 25 DAS. For field experiment, the same cultivars were grown in a saline soil (EC = 5.05 d Sm-1) for two growth seasons with or without 50 mM proline applied at seedling stage (15 days after transplanting, DAT), vegetative state (50 DAT) or at both stages. Results from pot experiment revealed that foliar applied 50 mM proline significantly improved the seedling growth under saline stress by reducing electrolyte leakage and improving the water related (relative water contents and water potential), and biochemical attributes(SOD, CAT, MDA, EL and T CHL). Under field conditions, exogenous application of optimized dose of proline both at seedling establishment and vegetative stage significantly improved the performance of rice cultivars by improving tillering dynamics, plant water-relations, chlorophyll pigments, photosynthetic pigments, morphological and yield related traits of rice cultivars. Proline application improved the efficiency of salt tolerance of rice cultivars, Shaheen basmati showed better response in terms of yield than Super basmati. In crux, foliar applications of 50 mM proline at seedling and vegetative stages are more effective for achieving the best kernel yield under saline conditions.

AB - The present study evaluated the role of foliar applied proline to enhance salt tolerance of two rice cultivars with contrasting salt tolerance: Super basmati (salt susceptible) and Shaheen basmati (salt tolerant) in both nursery and field conditions. For pot experiment, salinity stress was imposed by applying 50 mM of NaCl solution to the soil daily for three continuing days, and applications of proline (0, 25, 50, 75 and 100 mM) was applied 25 DAS. For field experiment, the same cultivars were grown in a saline soil (EC = 5.05 d Sm-1) for two growth seasons with or without 50 mM proline applied at seedling stage (15 days after transplanting, DAT), vegetative state (50 DAT) or at both stages. Results from pot experiment revealed that foliar applied 50 mM proline significantly improved the seedling growth under saline stress by reducing electrolyte leakage and improving the water related (relative water contents and water potential), and biochemical attributes(SOD, CAT, MDA, EL and T CHL). Under field conditions, exogenous application of optimized dose of proline both at seedling establishment and vegetative stage significantly improved the performance of rice cultivars by improving tillering dynamics, plant water-relations, chlorophyll pigments, photosynthetic pigments, morphological and yield related traits of rice cultivars. Proline application improved the efficiency of salt tolerance of rice cultivars, Shaheen basmati showed better response in terms of yield than Super basmati. In crux, foliar applications of 50 mM proline at seedling and vegetative stages are more effective for achieving the best kernel yield under saline conditions.

U2 - 10.17582/journal.pjar/2019/32.1.140.151

DO - 10.17582/journal.pjar/2019/32.1.140.151

M3 - Article

VL - 32

SP - 140

EP - 151

JO - Pakistan Journal of Agricultural Research

JF - Pakistan Journal of Agricultural Research

SN - 0251-0480

IS - 1

ER -