Seed Priming with Salicylic Acid Improves Germination and Seedling Growth of Rice (Oryza sativa L.) under PEG-6000 Induced Water Stress

Shatpathy, Prabhasmita; Kar, M.; Dwibedi, Sanat Kumar; Dash, Abhiram

doi:10.20546/ijcmas.2018.710.101

Cited by 32 publications

(20 citation statements)

References 11 publications

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“…2). Similar results were found in the experiments of Hanan (2007), Singh and Usha (2003) and Shatpathy et al (2018). With the SFW value of 0.437 gm and SDW value 0.35 gm.…”

Section: Seedling Fresh and Dry Weightsupporting

confidence: 88%

Effect of PEG Induced Drought Stress on Germination and Seedling Traits of Maize (Zea mays L.) Lines

Magar¹,

Parajuli²,

Sah³

et al. 2019

Türk Tarım Ve Doğa Bilimleri Dergisi

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Maize is the staple food crop in hilly areas of Nepal. Drought stress is one of the most important crop growth limiting factors leading to lower crop productivity in these areas. Maize seedlings are susceptible to drought stress. Nine lines (Arun-2, NML-1, Rampur Composite, RL-100, RL-105, Rl-106, RL-197, RML-18 and RML-8) of maize obtained from National Maize Research Program, Rampur, Chitwan, Nepal to study their tolerance to drought stress. An experiment was designed to study their drought tolerance by subjecting to four levels of osmotic potential (0,-5,-10 and-15 bar) induced by polyethylene glycol (PEG) 6000 in two factor completely randomized design with three replication at Biotechnology Division, National Agricultural Research Institute, Khumaltar, Lalitpur, Nepal. Effects of different levels of PEG 6000 were found significant on all traits studied viz. Germination rate (%), Speed of germination, Root length, Shoot length, Root Shoot ratio, Seedling length, Seedling fresh weight, Seedling dry weight and Vigor index. Line Arun-2 was recorded as best performer followed by Rampur Composite and RL-105 for all the traits analyzed. Lines RL-100, RL-106, RL-197, RML-18 and RML-8 showed poor performance under the same levels of PEG induced drought stress. Furthermore, the results also showed that maize manifests better genetic expression such as drought tolerance under severe moisture stress conditions in soil. Therefore, Lines Arun-2, Rampur Composite and RL-105 are suggested for varietal improvement program for drought stress conditions.

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“…2). Similar results were found in the experiments of Hanan (2007), Singh and Usha (2003) and Shatpathy et al (2018). With the SFW value of 0.437 gm and SDW value 0.35 gm.…”

Section: Seedling Fresh and Dry Weightsupporting

confidence: 88%

Effect of PEG Induced Drought Stress on Germination and Seedling Traits of Maize (Zea mays L.) Lines

Magar¹,

Parajuli²,

Sah³

et al. 2019

Türk Tarım Ve Doğa Bilimleri Dergisi

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“…Priming with SA at 100 mg L −1 enhanced emergence and early seedling growth in cucumber [ 151 ] and increased germination and productivity of Vicia faba [ 152 ] and sesame [ 153 ]. It has been reported that rice seeds primed with SA (100 ppm) had increased germination and accelerated seedling growth by ion absorption in PEG-induced water stress [ 131 ]. In addition, priming of rice seeds with SA enhanced tolerance to chilling stress by enhancing antioxidant enzyme activities and reducing oxidative damage [ 132 ].…”

Section: Commonly Used Pgrs In Seed Primingmentioning

confidence: 99%

Seed Priming with Phytohormones: An Effective Approach for the Mitigation of Abiotic Stress

Rhaman

Imran

Rauf

et al. 2020

Plants

192

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Plants are often exposed to abiotic stresses such as drought, salinity, heat, cold, and heavy metals that induce complex responses, which result in reduced growth as well as crop yield. Phytohormones are well known for their regulatory role in plant growth and development, and they serve as important chemical messengers, allowing plants to function during exposure to various stresses. Seed priming is a physiological technique involving seed hydration and drying to improve metabolic processes prior to germination, thereby increasing the percentage and rate of germination and improving seedling growth and crop yield under normal and various biotic and abiotic stresses. Seed priming allows plants to obtain an enhanced capacity for rapidly and effectively combating different stresses. Thus, seed priming with phytohormones has emerged as an important tool for mitigating the effects of abiotic stress. Therefore, this review discusses the potential role of priming with phytohormones to mitigate the harmful effects of abiotic stresses, possible mechanisms for how mitigation is accomplished, and roles of priming on the enhancement of crop production.

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“…An experiment was designed as twelve groups and was listed in Supplementary Table S1. The toxic levels of NaCl and PEG were chosen base on the study of Kurniasih et al (2016) and Shatpathy et al (2018), respectively. For determination of Nar application, the doses of Nar were selected as 0.1 mM and 0.4 mM according to Liu et al (2012).…”

Section: The Applications Of Stress and Naringenin And The Samplingmentioning

confidence: 99%

Flavonoid Naringenin Alleviates Short-Term Osmotic and Salinity Stresses Through Regulating Photosynthetic Machinery and Chloroplastic Antioxidant Metabolism in Phaseolus vulgaris

et al. 2020

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The current study was conducted to demonstrate the possible roles of exogenously applied flavonoid naringenin (Nar) on the efficiency of PSII photochemistry and the responses of chloroplastic antioxidant of salt and osmotic-stressed Phaseolus vulgaris (cv. Yunus90). For this aim, plants were grown in a hydroponic culture and were treated with Nar (0.1 mM and 0.4 mM) alone or in a combination with salt (100 mM NaCl) and/or osmotic (10% Polyethylene glycol, −0.54 MPa). Both caused a reduction in water content (RWC), osmotic potential ( ), chlorophyll fluorescence (F v /F m ), and potential photochemical efficiency (F v /F o ). Nar reversed the changes on these parameters. The phenomenological fluxes (TR o /CS and ET o /CS) altered by stress were induced by Nar and Nar led to a notable increase in the performance index (PI ABS ) and the capacity of light reaction [ P o /(1-P o )]. Besides, Nar-applied plants exhibited higher specific fluxes values [ABS/RC, ET o /RC, and E o /(1-E o )] and decreasing controlled dissipation of energy (DI o /CS o and DI o /RC). The transcripts levels of psbA and psbD were lowered in stress-treated bean but upregulated in Nar-treated plants after stress exposure.Nar also alleviated the changes on gas exchange parameters [carbon assimilation rate (A), stomatal conductance (g s ), intercellular CO 2 concentrations (C i ), transpiration rate (E), and stomatal limitation (L s )]. By regulating the antioxidant metabolism of the isolated chloroplasts, Nar was able to control the toxic levels of hydrogen peroxide (H 2 O 2 ) and TBARS (lipid peroxidation) produced by stresses. Chloroplastic superoxide dismutase (SOD) activity reduced by stresses was increased by Nar. In response to NaCl, Nar increased the activities of ascorbate peroxidase (APX), glutathione reductase (GR), monodehydroascorbate reductase (MDHAR), and dehydroascorbate reductase (DHAR), as well as peroxidase (POX). Nar protected the bean chloroplasts by minimizing disturbances caused by NaCl exposure via the ascorbate (AsA) and glutathione (GSH) redox-based systems. Under Nar plus PEG, Nar maintained the AsA regeneration by

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Seed Priming with Salicylic Acid Improves Germination and Seedling Growth of Rice (Oryza sativa L.) under PEG-6000 Induced Water Stress

Cited by 32 publications

References 11 publications

Effect of PEG Induced Drought Stress on Germination and Seedling Traits of Maize (Zea mays L.) Lines

Effect of PEG Induced Drought Stress on Germination and Seedling Traits of Maize (Zea mays L.) Lines

Seed Priming with Phytohormones: An Effective Approach for the Mitigation of Abiotic Stress

Flavonoid Naringenin Alleviates Short-Term Osmotic and Salinity Stresses Through Regulating Photosynthetic Machinery and Chloroplastic Antioxidant Metabolism in Phaseolus vulgaris

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