Improving the performance of Bt-cotton under heat stress by foliar application of selenium

Saleem, Muhammad Farrukh; Kamal, Muhammad Asif; Anjum, Shakeel Ahmad; Shahid, Muhammad; Raza, Muhammad Asam; Awais, Muhammad

doi:10.1080/01904167.2018.1459694

Cited by 24 publications

(10 citation statements)

References 27 publications

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“…Imposition of heat stress decreased the synthesis of glycine betaine and membrane stability (Shahid et al 2017b) in different genotypes of heat-stressed wheat. Decrease in synthesis of osmoprotectants leads to perturbations in water relations under hot temperature environment which impacted agronomic attributes (Saleem et al 2018a).…”

Section: Discussionmentioning

confidence: 99%

“…Five plants were randomly tagged in each experiment unit to determine "initiation of spike, flowering, and grain filling." Heat stress was imposed using pricked polythene sheet (Kamal et al 2017;Shahid et al 2017a, b;Saleem et al 2018a) when 50% initiation of spike, flowering, and grain filling had been reached as per different treatments. Temperature was recorded during imposition of heat stress with the help of digital multimeter (Digital Multimeter-50,302).…”

Section: Imposition Of Treatmentsmentioning

confidence: 99%

“…Thus, glycine betaine-mediated detoxification of reactive oxygen species and protection of ester linkages downregulate. Hence, lipid peroxidation and synthesis of malondialdehyde enhance under heat stress (Saleem et al 2018a). Aggravated damage to membranes and depressed synthesis of glycine betaine also disturb water relations of cell (Szymańska et al 2017).…”

Section: Introductionmentioning

confidence: 99%

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Foliar Potassium-Induced Regulations in Glycine Betaine and Malondialdehyde Were Associated with Grain Yield of Heat-Stressed Bread Wheat (Triticum aestivum L.)

Shahid

Saleem

et al. 2020

J Soil Sci Plant Nutr

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Heat stress at reproductive stages of wheat causes grain shriveling. The present study aimed at comparing thermo-sensitivity of terminal stages of wheat and optimization of foliar potassium to alleviate heat and to determine correlation of biochemical attributes with agronomic attributes. The experiment was laid out in a randomized complete block design under split treatment structure and replicated thrice. Main plot was comprised of heat stress (H), viz. H 0 = no heat imposition; H 1 = heat stress imposition from complete emergence of spike to grain filling initiation, and H 2 = heat stress imposition from flowering initiation to grain filling initiation. Foliar potassium (K) sprays consisted of K 0 = control (water spray); K 15 = 15; K 30 = 30; K 45 = 45; and K 60 = 60 g L −1. Under "H 0 " similar and more glycine betaine, water relations and lesser malondialdehyde were recorded with 45 and 60 g L −1 K, While 60 g L −1 K proved more beneficial under "H 1 " and "H 2 " for these attributes, "H 1 " proved more damaging compared with "H 0 " and "H 2 " for grain yield and yield components, while similar and more improvements in grain yield and yield components were recorded with 45 and 60 g L −1 K compared with other doses. Conclusively, more deleterious responses were observed under "H 1 " compared with other heat treatments. Application of 40 g L −1 K under "H 0 " and 60 g L −1 K under heat stress exhibited more remarkable responses. Moreover, a strong association of biochemical attributes with agronomic parameters was recorded.

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Section: Discussionmentioning

confidence: 99%

Section: Imposition Of Treatmentsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Foliar Potassium-Induced Regulations in Glycine Betaine and Malondialdehyde Were Associated with Grain Yield of Heat-Stressed Bread Wheat (Triticum aestivum L.)

Shahid

Saleem

et al. 2020

J Soil Sci Plant Nutr

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“…Negative implications of heat stress at morphological level include decreased number of bolls per plant and sympodial branches per plant, seed cotton yield and accelerated senescence (Saleem et al 2018a). Flowering is relatively more prone to heat compared with other reproductive stages of cotton (Chen et al 2017) while other heat-triggered aberrations encompass square and boll shedding, pollen infertility, escalated senescence, poor fertilization efficacy, decreased boll weight, and resultantly lesser seed cotton yield (Hu et al 2016).…”

Section: Introductionmentioning

confidence: 99%

“…Antioxidants and chlorophyll contents exhibit strong correlation with morphological attributes under stress conditions and ultimately improve seed cotton yield (Saleem et al 2018a;Saleem et al 2018b). Disruptions in physiochemical processes can be regulated using various agronomic wiles such as adjusting sowing time, residue management, and exogenous application of nutrients (Shahid et al 2015;Kamal et al 2017b).…”

Section: Introductionmentioning

confidence: 99%

Exogenous Selenium-Instigated Physiochemical Transformations Impart Terminal Heat Tolerance in Bt Cotton

Saleem

Kamal

Shahid

et al. 2019

J Soil Sci Plant Nutr

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High temperature during reproductive stages of cotton is a major constraint to achieve potential yield of cotton. The aim of the present study was to determine comparative thermo-sensitivity of squaring and flowering, to optimize exogenous selenium for heat-stressed cotton, and to explore correlation among physiochemical and morphological attributes. The experiment was conducted during 2013 and repeated during 2014. The experiment was laid out in randomized complete block design under split plot arrangement and replicated thrice. Treatments were comprised of heat stress (H 0 = no heat imposition; H 1 = heat imposition at squaring; and H 2 = heat imposition at flowering) in main plot and varying foliar selenium concentrations (Se 0 = water spray/control; Se 50 = 50; Se 100 = 100; and Se 150 = 150 mg L-1 selenium) in split plot. Significantly, more antioxidants, chlorophyll contents, water relation attributes, seed cotton yield, and lesser hydrogen peroxide were recorded with 150 mg L-1 foliar selenium compared with other concentrations under H 0. While under H 1 and H 2 , statistically similar and significantly more antioxidants, chlorophyll contents, water relation attributes, seed cotton yield, and lesser hydrogen peroxide were observed for 100 and 150 mg L-1 selenium compared with other selenium concentrations. Conclusively, H 2 proved more thermolabile compared with H 1 , and application of 150 mg L-1 foliar selenium effectively alleviated adverse effects of heat. Moreover, we observed strong and significant associations of all physiochemical attributes with seed cotton yield.

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Genomic-Assisted Breeding for Abiotic Stress Tolerance

Rahman

Majeed

Zulfiqar

et al. 2021

Cotton Precision Breeding

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Improving the performance of Bt-cotton under heat stress by foliar application of selenium

Cited by 24 publications

References 27 publications

Foliar Potassium-Induced Regulations in Glycine Betaine and Malondialdehyde Were Associated with Grain Yield of Heat-Stressed Bread Wheat (Triticum aestivum L.)

Foliar Potassium-Induced Regulations in Glycine Betaine and Malondialdehyde Were Associated with Grain Yield of Heat-Stressed Bread Wheat (Triticum aestivum L.)

Exogenous Selenium-Instigated Physiochemical Transformations Impart Terminal Heat Tolerance in Bt Cotton

Genomic-Assisted Breeding for Abiotic Stress Tolerance

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