Zinc biofortification in rice: leveraging agriculture to moderate hidden hunger in developing countries

Zaman, Qamar; Aslam, Zubair; Yaseen, Muhammad; Ihsan, Muhammad Zahid; Khaliq, Abdul; Fahad, Shah; Bashir, Safdar; Ramzani, Pia Muhammad Adnan; Naeem, Muhammad

doi:10.1080/03650340.2017.1338343

Cited by 96 publications

(65 citation statements)

References 85 publications

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“…En este mismo contexto, Siddika et al En este contexto, las investigaciones relacionadas a la biofortificación agronómica del grano de arroz a través de técnicas eficientes de fertilización mineral y biológica, así como también mediante programas de mejora genética con técnicas biotecnológicas, se siguen desarrollando con mayor intensidad considerando que el arroz es uno de los cultivos más consumidos por la población y que la desnutrición sigue afectando a millones de niños y mujeres cada año en todo el mundo, más aun en países en desarrollo (Bashir et at., 2013;IFPRI, 2014;Zaman et al, 2017;Jena et al, 2018).…”

Section: Resultados Y Discusiónunclassified

Increase of yield and nutritional quality of rice with NPK fertilization complemented with micronutrients

Dueñas¹,

García²,

Alcívar³

et al. 2018

Sci.agropecu

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El objetivo de la investigación fue evaluar el efecto de la fertilización NPK complementada con micronutrientes sobre el rendimiento y calidad nutricional del arroz. Se condujo un experimento en diez fincas arroceras de la zona de San Jacinto, Rocafuerte, Manabí. En cada finca se establecieron dos parcelas de 100 m 2 , donde una recibió fertilización NPK + micronutrientes y la otra solo fertilización convencional con NPK. En ambos casos la dosis de fertilización fue de 180, 70 y 60 kg ha-1 de N, P y K, respectivamente. En el primer caso se utilizaron fertilizantes compuestos que incluyeron micronutrientes y en el segundo caso fertilizantes convencionales. Los datos fueron analizados con prueba estadística de t de Student para observaciones pareadas. Las principales variables registradas fueron rendimiento y contenido nutricional del grano. Se evidenció un incremento en rendimiento del 36,85% con la fertilización NPK + micronutrientes en relación al tratamiento control con NPK. De forma similar el contenido proteico, Fe y Zn se incrementó en 18,33, 31,58 y 33,33%, respectivamente, con la aplicación de micronutrientes, en contraste a la fertilización tradicional con NPK. Los resultados mostraron que la aplicación de micronutrientes contribuyó significativamente al incremento del rendimiento y calidad del grano de arroz. Palabras clave: nutrición del arroz; elementos menores; productividad; biofortificación; calidad nutraceútica.

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Section: Resultados Y Discusiónunclassified

Increase of yield and nutritional quality of rice with NPK fertilization complemented with micronutrients

Dueñas¹,

García²,

Alcívar³

et al. 2018

Sci.agropecu

View full text Add to dashboard Cite

show abstract

“…Micronutrients are involved in various important physiological and biochemical functioning of plants, including enzyme activation, chlorophyll formation, protein synthesis, carbohydrates, and lipids and nucleic acids metabolism [119]. Different authors reported differently in the uptake and accumulation of micronutrients such as Fe, Mn, Zn, and Cu in salt-stressed condition.…”

Section: Micronutrientsmentioning

confidence: 99%

Salt Stress in Plants and Amelioration Strategies: A Critical Review

Roy¹,

Chowdhury²

2021

Abiotic Stress in Plants

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High salt concentration in soil is a major abiotic stress, which adversely influences the growth, overall development, and productivity of crops. More than 20% of the land of the world used for crop production is adversely affected by high salt concentration. The problem of salt stress becomes a major concern when previously fertile, productive agricultural lands are salinized more profoundly as a result of anthropogenic activities along with natural causes. Therefore, this review is focused on various aspects of salt-affected soils (SAS), their effects on plants, and different approaches for reclamation of SAS to enhance the potentiality for crop production. Salt-affected soils are categorized into saline, saline-sodic, and sodic soils based on the amount of total soluble salts as expressed by electrical conductivity (EC), sodium adsorption ratio (SAR), exchangeable sodium percentage (ESP), and soil pH. The inhibition of plant growth in saline soils is mainly induced by osmotic stress; reduced uptake of essential macro-and micronutrients, including nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg), iron (Fe), manganese (Mn), zinc (Zn), and copper (Cu); and specific toxicities of sodium (Na) and chloride (Cl). Sodic soils adversely affect the plant through high soil pH and poor physical condition resulting from an excessive amount of exchangeable Na. Different plants respond to salt stress in different extents. Saltaffected soils must be reclaimed to restore their productivity for increasing food production. The approaches for the management of SAS include leaching, incorporation of different organic and inorganic amendments, mulching, and development of salt-tolerant crops. The suitability of approaches depends on several considerations such as cost of reclamation, the time required, the extent of the salt stress, soil properties, availability of technology, and other environmental factors. Among different strategies, the incorporation of organic amendments is beneficial, costeffective, environment friendly, and sustainable for amelioration of salt stress and enhancement of crop production due to the extensive roles of organic amendments in improving the soil's physical (structural stability, porosity, and permeability), chemical [pH, EC, ESP, organic matter, cation exchange capacity (CEC), and Na leaching], and biological and/or biochemical (microbial abundance, microbial activity, biomass carbon, and enzymatic activities) properties.

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“…The spatial determination of minerals present in seeds can strengthen biofortification efforts, improve the understanding of the elemental redistribution during seed processing, steps such as grain polishing and crushing. Altogether, this can ensure that nutrients will reach the final consumer ( Gregory et al, 2017 ; Mathers et al, 2017 ; Zaman et al, 2018 ).…”

Section: Resultsmentioning

confidence: 99%

Laboratory Microprobe X-Ray Fluorescence in Plant Science: Emerging Applications and Case Studies

et al. 2018

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In vivo and micro chemical analytical methods have the potential to improve our understanding of plant metabolism and development. Benchtop microprobe X-ray fluorescence spectroscopy (μ-XRF) presents a huge potential for facing this challenge. Excitation beams of 30 μm and 1 mm in diameter were employed to address questions in seed technology, phytopathology, plant physiology, and bioremediation. Different elements were analyzed in several situations of agronomic interest: (i) Examples of μ-XRF yielding quantitative maps that reveal the spatial distribution of zinc in common beans (Phaseolus vulgaris) primed seeds. (ii) Chemical images daily recorded at a soybean leaf (Glycine max) infected by anthracnose showed that phosphorus, sulfur, and calcium trended to concentrate in the disease spot. (iii) In vivo measurements at the stem of P. vulgaris showed that under root exposure, manganese is absorbed and transported nearly 10-fold faster than iron. (iv) Quantitative maps showed that the lead distribution in a leaf of Eucalyptus hybrid was not homogenous, this element accumulated mainly in the leaf border and midrib, the lead hotspots reached up to 13,400 mg lead kg-1 fresh tissue weight. These case studies highlight the ability of μ-XRF in performing qualitative and quantitative elemental analysis of fresh and living plant tissues. Thus, it can probe dynamic biological phenomena non-destructively and in real time.

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Zinc biofortification in rice: leveraging agriculture to moderate hidden hunger in developing countries

Cited by 96 publications

References 85 publications

Increase of yield and nutritional quality of rice with NPK fertilization complemented with micronutrients

Increase of yield and nutritional quality of rice with NPK fertilization complemented with micronutrients

Salt Stress in Plants and Amelioration Strategies: A Critical Review

Laboratory Microprobe X-Ray Fluorescence in Plant Science: Emerging Applications and Case Studies

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