Unraveling Wheat Grain Quality, Physiological Indices, Dry Matter Accumulation, and Attenuating Water Stress Adverse Effect Via Foliar Potassium Application at Different Growth Stages

Ali, Nawab; Anjum, Muhammad Mehran; Khan, Gul Roz; Ali, Rovaid

doi:10.1007/s10343-021-00587-x

Cited by 9 publications

(3 citation statements)

References 53 publications

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“…There is evidence that potassium ion transport is associated with cell swelling, membrane transport, growth hormone homeostasis, cell signaling, and phloem transport [40][41][42]. K + is an important conventional regulator of plant root growth, and potassium application treatments have been shown to significantly increase the aboveground biomass and improve plant metabolism [43,44]. Moreover, the moderate application of K induced root development, increased root starch content, and consequently increased yield [37,45,46].…”

Section: Discussionmentioning

confidence: 99%

Effects of Potassium Application on Growth and Root Metabolism of Salvia miltiorrhiza under Drought Stress

Li,

Mei,

Zhang

et al. 2023

Agronomy

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Potassium application can effectively mitigate the effects of drought stress on plant growth, and few studies have reported its application to the medicinal plant Salvia miltiorrhiza (S. miltiorrhiza). Four experimental treatments were used, including a control (Z1K0), non-drought potassium application (Z1K3), drought treatments (Z2K0), and drought-stress potassium application (Z2K3). The findings revealed that, in contrast to Z2K0, Z2K3 promoted the absorption of potassium in S. miltiorrhiza, elicited the aggregation of osmoregulatory compounds such as soluble protein and proline, and mitigated membrane impairment as a defense against the deleterious consequences of drought stress. Additionally, we extended our investigation to encompass comprehensive metabolomics analysis of the roots. Interestingly, subsequent root metabolomics analyses demonstrated that the drought application of potassium not only significantly reduced the amino acid content, but also increased the amount of terpenoids and phenolic acids in the roots. Nonetheless, the application of a particular amount of K under moderate drought conditions promoted the growth and yield of S. miltiorrhiza, but proved to be detrimental to its active ingredients. Indeed, the findings of this study offer valuable insights and recommendations for the application of potassium to mitigate the impact of drought stress in S. miltiorrhiza and other medicinal plants.

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Section: Discussionmentioning

confidence: 99%

Effects of Potassium Application on Growth and Root Metabolism of Salvia miltiorrhiza under Drought Stress

Li,

Mei,

Zhang

et al. 2023

Agronomy

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“…This method has advantages over conventional irrigation, as it reduces the amount of water used in the initial growth stages and provides water and nitrogen at the grain filling stage that is after flowering which can reduce the canopy temperature, delay the leaf senescence, and in turn increase the grain yield and protein content. Likewise, a similar study of foliar application of potassium at the tillering and grain filling stage along with water deficient environment resulted in improved grain yield and on-par gluten properties compared to the control genotypes (Ali et al, 2022). Figure 3 depicts the representation of the various strategies used to enhance wheat grain quality.…”

Section: Recent Strategies To Enhance Wheat Grain Qualitymentioning

confidence: 97%

Recent developments on the contribution of glutenin and puroindoline proteins to improve wheat grain quality

Rai

Han

2022

Cereal Chem

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Background and Objectives: Wheat is most staple food crop for making different end products. The major factors determining the wheat flour end-use are glutenins and puroindolines. It is very important to identify the composition, variation, and functional characteristics of these key factors. Findings: The glutenin subunits comprise two subgroups-high molecular weight glutenin subunits (HMW-GS), and low molecular weight glutenin subunits (LMW-GS). Puroindolines genes depict a wide diversity of both PINA and PINB allelic forms. The prevalence and relative proportions of these types may vary depending on several genetic and environmental factors. Conclusion:Current review summarizes recently published research on the impact of glutenin genes governing gluten strength and puroindolines genes related to grain softness. It encompasses recent reports on the development of DNA-based molecular markers utilized to identify novel alleles associated with HMW-GS, LMW-GS, and puroindoline genes in diverse wheat genotypes.

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“…Drought-induced injury to photosynthetic machinery during tillering as observed in this study may slow down the overall efficiency of the assimilation process. Further, the negative effects of drought could be stored in plant memory, limiting leaf physiology performance and disrupting water relations during reproductive stages (Ali et al 2022;Aurangzaib et al 2022;Vijayaraghavareddy et al 2022). Poor grain yield of droughtstressed plants could result from a drop in leaf water content, increase in solute accumulation, damage to photosystem health/gas exchange components, increase in top leaf senescence and oxidative burst (Kalal et al 2022;Yang et al 2022).…”

Section: Drought Stress During Tillering Reduces Growth and Yield Of ...mentioning

confidence: 99%

Silver nanoparticles protect tillering in drought-stressed wheat by improving leaf water relations and physiological functioning

Sarwar,

Saleem,

Ullah

et al. 2023

Funct. Plant Biol.

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The tillering phase of wheat (Triticum aestivum) crops is extremely susceptible to drought. We explored the potential of silver nanoparticles (AgNPs) in protecting wheat genotypes from drought injury during this sensitive stage. After treating with AgNPs (60 ppm), the plants were submitted to different water levels; i.e. 100% field capacity (FC), 75% FC (mild drought), 50% FC (moderate drought) and 25% FC (severe drought) from 15 to 41 days after sowing (tillering phase). Leaf physiological data were collected at stress termination, while yield attributes were recorded at crop maturity. We found that increasing drought intensity significantly impaired leaf physiology and grain yield of both studied genotypes. Compared with control, moderately and severely drought-stressed plants produced 25% and 45% lesser grain yield per spike, respectively (averaged across genotypes and years of study). Likewise, moderate and severe drought reduced photosynthesis by 49% and 76%, respectively, compared with control. In contrast, AgNPs significantly restored leaf physiological functioning and grain yield formation at maturity. For example, under moderate and severe drought, AgNPs-treated plants produced 22% and 17% more grains per plant, respectively, than their respective water-treated plants. Our study suggests that exogenous AgNPs can protect wheat crops from drought during early development stages.

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Unraveling Wheat Grain Quality, Physiological Indices, Dry Matter Accumulation, and Attenuating Water Stress Adverse Effect Via Foliar Potassium Application at Different Growth Stages

Cited by 9 publications

References 53 publications

Effects of Potassium Application on Growth and Root Metabolism of Salvia miltiorrhiza under Drought Stress

Effects of Potassium Application on Growth and Root Metabolism of Salvia miltiorrhiza under Drought Stress

Recent developments on the contribution of glutenin and puroindoline proteins to improve wheat grain quality

Silver nanoparticles protect tillering in drought-stressed wheat by improving leaf water relations and physiological functioning

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