Using Growth and Ionic Contents of Wheat Seedlings as Rapid Screening Tool for Salt Tolerance

Mahboob, Wajid; Khan, Muhammad Athar; Shirazi, Muhammad Ubaidullah; Mumtaz, S.; Shereen, Aisha

doi:10.1007/s12892-017-0037-0

Cited by 6 publications

(7 citation statements)

References 17 publications

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“…Winter wheat accumulated more sodium com-pared with spring wheat (Figure 1a). Most of the salt-excluder genotypes were previously recognized as salt-tolerant by many scientists [32][33][34], which is further confirmed by this study's results (Figures 1a and 2a). The salt-tolerant genotypes may possess a better ability to maintain low Na + in their leaves, as reported by Elkelish et al [35].…”

Section: Discussionsupporting

confidence: 90%

Effect of Salinity Stress on Physiological Changes in Winter and Spring Wheat

et al. 2021

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Salinity is a leading threat to crop growth throughout the world. Salt stress induces altered physiological processes and several inhibitory effects on the growth of cereals, including wheat (Triticum aestivum L.). In this study, we determined the effects of salinity on five spring and five winter wheat genotypes seedlings. We evaluated the salt stress on root and shoot growth attributes, i.e., root length (RL), shoot length (SL), the relative growth rate of root length (RGR-RL), and shoot length (RGR-SL). The ionic content of the leaves was also measured. Physiological traits were also assessed, including stomatal conductance (gs), chlorophyll content index (CCI), and light-adapted leaf chlorophyll fluorescence, i.e., the quantum yield of photosystem II (Fv′/Fm′) and instantaneous chlorophyll fluorescence (Ft). Physiological and growth performance under salt stress (0, 100, and 200 mol/L) were explored at the seedling stage. The analysis showed that spring wheat accumulated low Na+ and high K+ in leaf blades compared with winter wheat. Among the genotypes, Sakha 8, S-24, W4909, and W4910 performed better and had improved physiological attributes (gs, Fv′/Fm′, and Ft) and seedling growth traits (RL, SL, RGR-SL, and RGR-RL), which were strongly linked with proper Na+ and K+ discrimination in leaves and the CCI in leaves. The identified genotypes could represent valuable resources for genetic improvement programs to provide a greater understanding of plant tolerance to salt stress.

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Section: Discussionsupporting

confidence: 90%

Effect of Salinity Stress on Physiological Changes in Winter and Spring Wheat

et al. 2021

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“…It has been extensively adapted to synchronize and enhance germination and seedling growth [1,6]. The priming of seeds amends the performance by accelerating homogeneous germination via standard and efficient seedlings in various crops which have impartial agronomic elaborations even under detrimental germination environments [7,8]. This is the reason for cutting back the sensitivity of exotic factors and privileging the development of seedlings in extensive agro-climatic environments [7,9].…”

Section: Introductionmentioning

confidence: 99%

“…Plant growth regulators and hormones boost the performance of various crops through priming and pre-sowing mechanisms [8]. Enzymes have certain specific roles related to their use within priming agents; ascorbic acid ameliorates the final emergence percentage (FEP) and emergence index (EI) while reducing mean emergence time (MET) and time to 50% emergence (E50) in wheat [1].…”

Section: Introductionmentioning

confidence: 99%

Ascorbic Acid Priming Enhances Seed Germination and Seedling Growth of Winter Wheat under Low Temperature Due to Late Sowing in Pakistan

et al. 2019

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Poor seed germination is a crucial yield-limiting factor when winter wheat is sown under low temperature. The objective of this study was to evaluate the role of ascorbic acid (AsA) in the extenuation of the harmful effects of low temperature at early and reproductive stages of wheat during 2016–2017 (15 November to 15 December). A two-year experiment was conducted using a randomized complete block design with split plot arrangement and with three replicates. Sowing dates (15 November and 15 December) were allotted to the main plot while seed priming (control, hydro-priming, and AsA priming) were allotted to the sub-plot. Results demonstrated that AsA priming significantly boosted different yield characteristics including chlorophyll content, tillers per unit area, number of grains per spike, and 1000-grain weight, contributing higher productivity and biomass during 2016–2017. The results further revealed that AsA could induce the up-regulation of diverse antioxidants (super oxide dismutase (SOD), peroxidase (POD), and catalase (CAT)), thus offsetting the adverse effects of sub-supra optimum temperatures of late sowing wheat. It is therefore concluded in this work that AsA priming enhances stand establishment, yield and yield-related traits, antioxidant enzyme activities, and chlorophyll contents when wheat is sown under low temperature.

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“…Fresh bio-Cereal Research Communications 47, 2019 mass of shoots were measured at the same day using weighing balance. For the dry weight analysis, shoots were dried at 60 °C in oven (12-16 hours) till constant weight (Mahboob et al 2018).…”

Section: Growth Parametersmentioning

confidence: 99%

Water and Salt Stress Metabolomics for Wheat Genotypes of India

Kaur

Asthir

2019

Cereal Research Communications

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Shoots of ten day old seedlings of nineteen wheat genotypes were evaluated for proline metabolism, H 2 O 2 , thiobarbituric acid reactive substances (TBARS) and 2,2 diphenyl-picrylhydrazyl (DPPH) radical scavenging activity under water deficit, water withholding and salinity stress conditions. Principle component analysis demarcated four groups: i.e. drought tolerant (Excalibar, Krichauff, Babax, Drysdale, Gladius and C306), salt tolerant (Kharchia, Type11, Krl 1-4 and Krl 19), low stress tolerant (C273, C518 and C591) and susceptible (HD2967, PBW621, WH1105, HD3086, PBW660 and PBW175). Salt stress treatment affected the length, fresh weight and dry weight of seedlings of all studied genotypes in comparison to water deficit and water withholding condition which may be due to higher contents of TBARS. Shoots of salt and drought tolerant genotypes possessed higher proline content and DPPH radical scavenging activity alongwith reduced content of TBARS in parallel with decreased H 2 O 2 content under water stress conditions. The activities of proline synthesizing enzymes i.e. pyrroline-5-carboxylate synthetase (P5CS) and pyrroline-5-carboxylate reductase (P5CR) were significantly higher than proline degrading enzyme viz. proline dehydrogenase (PDH) under water stress as compared to salinity stress conditions. Overall, results indicated that P5CS, P5CR and PDH activities led to higher build up of proline under water stress, which might play a significant role in improving membrane stability by increasing radical scavenging activity and finally imparting stress tolerance in specific wheat genotypes.

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Using Growth and Ionic Contents of Wheat Seedlings as Rapid Screening Tool for Salt Tolerance

Cited by 6 publications

References 17 publications

Effect of Salinity Stress on Physiological Changes in Winter and Spring Wheat

Effect of Salinity Stress on Physiological Changes in Winter and Spring Wheat

Ascorbic Acid Priming Enhances Seed Germination and Seedling Growth of Winter Wheat under Low Temperature Due to Late Sowing in Pakistan

Water and Salt Stress Metabolomics for Wheat Genotypes of India

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