Potassium and Its Role in Sustainable Agriculture

Rawat, Jyoti; Sanwal, Pankaj; Saxena, Jyoti

doi:10.1007/978-81-322-2776-2_17

Cited by 92 publications

(26 citation statements)

References 128 publications

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“…K + is involved in many physiological processes such as electrochemical homeostasis, stomatal aperture, and several enzyme activities (Anschütz, Becker, & Shabala, ; Wang & Wu, ). K deficiency is highly detrimental to plant growth and primary production by crops, and intense efforts are being devoted to improve K acquisition by plants (Rawat, Sanwal, & Saxena, ; Shin, ). K‐deficient soils are relatively common in countries of the intertropical region, such as Brazil, Equatorial Africa (wet tropical), China and South‐Eastern Asia (such as Malaysia or Indonesia), and Australia.…”

Section: Introductionmentioning

confidence: 99%

“…K + is involved in many physiological processes such as electrochemical homeostasis, stomatal aperture, and several enzyme activities (Anschütz, Becker, & Shabala, 2014;Wang & Wu, 2013). K deficiency is highly detrimental to plant growth and primary production by crops, and intense efforts are being devoted to improve K acquisition by plants (Rawat, Sanwal, & Saxena, 2016;Shin, 2014).…”

Section: Introductionmentioning

confidence: 99%

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Responses to K deficiency and waterlogging interact via respiratory and nitrogen metabolism

Cui

Abadie

Carroll

et al. 2019

Plant Cell & Environment

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K deficiency and waterlogging are common stresses that can occur simultaneously and impact on crop development and yield. They are both known to affect catabolism, with rather opposite effects: inhibition of glycolysis and higher glycolytic fermentative flux, respectively. But surprisingly, the effect of their combination on plant metabolism has never been examined precisely. Here, we applied a combined treatment (K availability and waterlogging) to sunflower (Helianthus annuus L.) plants under controlled greenhouse conditions and performed elemental quantitation, metabolomics, and isotope analyses at different sampling times. Whereas separate K deficiency and waterlogging caused well‐known effects such as polyamines production and sugar accumulation, respectively, waterlogging altered K‐induced respiration enhancement (via the C5‐branched acid pathway) and polyamine production, and K deficiency tended to suppress waterlogging‐induced accumulation of Krebs cycle intermediates in leaves. Furthermore, the natural 15N/14N isotope composition (δ15N) in leaf compounds shows that there was a change in nitrate circulation, with less nitrate influx to leaves under low K availablity combined with waterlogging and more isotopic dilution of lamina nitrates under high K. Our results show that K deficiency and waterlogging effects are not simply additive, reshape respiration as well as nitrogen metabolism and partitioning, and are associated with metabolomic and isotopic biomarkers of potential interest for crop monitoring.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Responses to K deficiency and waterlogging interact via respiratory and nitrogen metabolism

Cui

Abadie

Carroll

et al. 2019

Plant Cell & Environment

View full text Add to dashboard Cite

show abstract

“…Whereas, the lowest value was obtained from K11treatment without significant difference among K11, K10, K9, K8, K7, K6, K5, and K4 in the 2018 and 2019 seasons. It was responsible to assume that these implications because of the immense role of potassium fortification in spurring physiological starch synthesis processes especially amylose content (Rawat et al, 2016). Grain amylose content has a negative correlation with gel consistency (stickiness values) consequently, kernels tend to cooked dry and separate or by another means becomes fluffy.…”

Section: E-2-grain Qualitymentioning

confidence: 99%

“…Potassium (K) is one of the nutrient pillars that underpin crop production and boost grain quality. By its impacts on various enzymatic and physiological processes such as water relations, enzyme activation, photosynthesis process, opening, and closing stomata during gas exchange and protein and starch synthesis, K has a pertinent relationship on rice production and grain quality (Pettigrew, 2008 andRawat et al, 2016). It is noteworthy that, potassium has a major role in grain quality, therefore it is often termed with a quality element (Usherwood, 1985).…”

Section: Introductionmentioning

confidence: 99%

Improving Grain Productivity and Quality Criteria of Broadcasted Giza 179 Rice Variety Via different Potassium Treatments

Nada

Elshayb

Fayed³

2020

Journal of Plant Production

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Field experiments were conducted in the 2018 and 2019 seasons at the Experimental Farm of Sakha Agriculture Research Station, Kafr-ELSheikh, and laboratory experiments conducted at Seed Technology Department, Field Crops Research Institute A.R.C. Giza, Egypt. The study aimed to evaluate the influence of different potassium application methods as follow, control treatment (no potassium application), 50 Kg K2O/ha as one basal batch and two splits, ½ as basal and ½ at 25 days after sowing and foliar potassium concentrations (0, 0.5, 1 and 1.5 % K2O) on Giza 179 rice variety. Twelve combinations were performed in a randomized complete block design with four replications. Yield attributes and grain yield, as well as grain quality charcteristics which involved grain dimension, milling recovery charcteristics, amylose content (AC), gel consistency (GC), gelatinization temperature (GT), and kernel elongation, were estimated. The findings revealed that splitting potassium fertilizer plus applying foliar application at the rate of 1.0 % lead to preferable yield attributes outcome, outstripped grain yield by 12.63 and 11.93 %, and ameliorated both of head rice percentage by 9.87 and 8.29 %, AC content by 4.19 and 4.02 % and decreased GC by 0.59 and 0.88 %, respectively in both seasons compared with one batch basal application. Using splitting potassium application plus foliar spray at 1.0 % K2O can apply to Giza 179 rice variety to optimize both of grain quantity and quality outcomes. Influence of different potassium treatments exhibited a significant effect on Seed Technology characteristics results.

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“…It is present in soil as an abundant element but exists mainly in bound forms. It plays significant roles in many metabolic processes like photosynthetic activity, synthesis of protein, and enzymes' activation and in imparting resistance to pests (Rawat et al, 2016). Only 1-2 per cent of the K fertilizers applied to the fields become available to plants, the rest becomes bound with other minerals and hence not available to the plants (Prakash et al, 2015).…”

Section: Bacteria In Nutrient Availability and Plant Growthmentioning

confidence: 99%

Climate resilient microbes in sustainable crop production

Saini¹,

Sharma²

2019

Contaminants in Agriculture and Environment: Health Risks and Remediation

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Climate change poses a great threat to the sustainability in agricultural crop production. Such circumstances demand the use of improved agricultural practices, environment friendly and climate resilient technologies. Microorganisms, being ubiquitous and abundant in the soil environment, are the key players regulating the earth's biogeochemical systems. The enormous potential of these microbes is being recognized and scientific community around the globe is involved in significant research towards the selection and commercialization of the microbes of biotechnological and environmental relevance. These microbes may be helpful in sustainable crop production by providing protection to plants from harmful pests and pathogens, by enhancing plant growth, by alleviating environmental and nutritional stresses, thus facilitating plants to Chapter contents Introduction …………………………………………………………………………………………………….. Soil microbial communities-effect of climate change and their resilience ………………………………. Need for microbial inoculation ……………………………………………………………………………… Role of soil microbes in plant growth nutrition …………………………………………………………….. Role of fungi …………………………………………………………………………………………………. Role of bacteria .……………………………………………………………………………………………... Role of microbes in stress control in plants …………………………………………………………………. Control of abiotic stress …………………………………………………………………………………….. Control of biotic stress ……………………………………………………………………………………… Conclusion ……………………………………………………………………………………………………… References ………………………………………………………………………………………………………. 265 cope up with the different abiotic and biotic stress conditions in view of the changing climatic scenario and alleviating its dire consequences.

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Potassium and Its Role in Sustainable Agriculture

Abstract: Apart from two major components nitrogen and phosphorous, potassium is the third essential macronutrient required for the growth and metabolism of plant, and its deficiency in plants causes poorly developed roots,

Cited by 92 publications

References 128 publications

Responses to K deficiency and waterlogging interact via respiratory and nitrogen metabolism

Responses to K deficiency and waterlogging interact via respiratory and nitrogen metabolism

Improving Grain Productivity and Quality Criteria of Broadcasted Giza 179 Rice Variety Via different Potassium Treatments

Climate resilient microbes in sustainable crop production

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