Effects of Foliar Iron Application on Iron Concentration in Polished Rice Grain and Its Bioavailability

Wei, Yanyan; Shohag, M. J. I.; Yang, Xiaoe; Zhang, Yibin

doi:10.1021/jf3036462

Cited by 75 publications

(47 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Late season foliar application of Zn or Fe at flowering or at early grain filling stage is more effective in improving grain Zn or Fe, respectively, than early season application (Phattarakul et al, 2012; Mabesa et al, 2013). Though the levels of Zn and Fe in grains are positively related, fertilization of one element did not affect the grain concentration of the other (Cakmak et al, 2010; Wei et al, 2012a,b). However, foliar fertilization of combined Fe and Zn fertilizers enhanced both grain-Fe and -Zn content without any antagonistic effects (Wei et al, 2012a).…”

Section: Fertilization Optionsmentioning

confidence: 89%

“…Under aerobic water management, the soil-applied Fe (usually in the form of Fe 2+ , either chelated or as a sulfate salt) is rapidly converted to unavailable Fe 3+ , and hence, foliar application is a better option to overcome Fe deficiency and to increase grain Fe and its bioavailability in rice (Wei et al, 2012a). Under anaerobic water management, Fe 2+ is readily available to rice plants ( Figure 1 ), so no fertilization is needed.…”

Section: Fertilization Optionsmentioning

confidence: 99%

See 1 more Smart Citation

Enriching rice with Zn and Fe while minimizing Cd risk

et al. 2015

View full text Add to dashboard Cite

Enriching iron (Fe) and zinc (Zn) content in rice grains, while minimizing cadmium (Cd) levels, is important for human health and nutrition. Natural genetic variation in rice grain Zn enables Zn-biofortification through conventional breeding, but limited natural Fe variation has led to a need for genetic modification approaches, including over-expressing genes responsible for Fe storage, chelators, and transporters. Generally, Cd uptake and allocation is associated with divalent metal cations (including Fe and Zn) transporters, but the details of this process are still unknown in rice. In addition to genetic variation, metal uptake is sometimes limited by its bioavailability in the soil. The availability of Fe, Zn, and Cd for plant uptake varies widely depending on soil redox potential. The typical practice of flooding rice increases Fe while decreasing Zn and Cd availability. On the other hand, moderate soil drying improves Zn uptake but also increases Cd and decreases Fe uptake. Use of Zn- or Fe-containing fertilizers complements breeding efforts by providing sufficient metals for plant uptake. In addition, the timing of nitrogen fertilization has also been shown to affect metal accumulation in grains. The purpose of this mini-review is to identify knowledge gaps and prioritize strategies for improving the nutritional value and safety of rice.

show abstract

Section: Fertilization Optionsmentioning

confidence: 89%

Section: Fertilization Optionsmentioning

confidence: 99%

Enriching rice with Zn and Fe while minimizing Cd risk

et al. 2015

View full text Add to dashboard Cite

show abstract

“…In these crops, which are generally treated with foliar iron sprays when there is no leaf chlorosis, applied iron has been shown to re-translocate efficiently to other plant organs, both in wheat and rice (Wei et al, 2012). Zuo and Zhang (2011) have developed strategies to increase iron 28 F. D. Oeste et al: Climate engineering by mimicking natural dust climate control uptake by roots and transfer it to edible plant portions, allowing absorption by humans from plant food sources.…”

Section: Importance Of Iron For Human Food and Healthmentioning

confidence: 99%

Climate engineering by mimicking natural dust climate control: the iron salt aerosol method

et al. 2017

View full text Add to dashboard Cite

Abstract. Power stations, ships and air traffic are among the most potent greenhouse gas emitters and are primarily responsible for global warming. Iron salt aerosols (ISAs), composed partly of iron and chloride, exert a cooling effect on climate in several ways. This article aims firstly to examine all direct and indirect natural climate cooling mechanisms driven by ISA tropospheric aerosol particles, showing their cooperation and interaction within the different environmental compartments. Secondly, it looks at a proposal to enhance the cooling effects of ISA in order to reach the optimistic target of the Paris climate agreement to limit the global temperature increase between 1.5 and 2 • C.Mineral dust played an important role during the glacial periods; by using mineral dust as a natural analogue tool and by mimicking the same method used in nature, the proposed ISA method might be able to reduce and stop climate warming. The first estimations made in this article show that by doubling the current natural iron emissions by ISA into the troposphere, i.e., by about 0.3 Tg Fe yr −1 , artificial ISA would enable the prevention or even reversal of global warming. The ISA method proposed integrates technical and economically feasible tools.

show abstract

“…Previous studies have demonstrated that some mineral elements are abundant in the rice aleurone layer and embryo but less so in the endosperm (Bouis and Welch, 2010;Wei, et al, 2012a). Unfortunately the form of rice most commonly globally consumed is milled rice, which endosperm with the aleurone layer and embryo removed.…”

Section: Introductionmentioning

confidence: 99%

“…Some screening studies have identified Fe-and Zndense genotypes with the aim of enhancing the mineral nutrition concentrations in milled rice (Sperotto et al, 2012;Wei et al, 2012a). Previous studies have also investigated the effects of fertilizer on the mineral element concentrations in milled rice, including the effects of fertilizer type, application pattern and application amount (Zhang et al, 2007;Wei et al, 2012a;He et al, 2013). Yuan et al (2006) reported that the optimal application of N fertilizer in paddy fields was instrumental in the accumulation of Fe, Cu, Mn, Zn, Ca and Mg in milled rice.…”

Section: Introductionmentioning

confidence: 99%

Application of silicon fertilizer affects nutritional quality of rice

Liu

Zhou

Sun

2017

Chilean J. Agric. Res.

View full text Add to dashboard Cite

To date, information regarding the effects of Si on rice (Oryza sativa L.) nutritional quality is rarely reported. The current study was conducted to evaluate how Si fertilizer impacts the mineral element, protein and amino acid concentrations in brown and milled rice. The experiment was a randomized complete split-plot design, with Si treatments as main plot and two cultivars as subplot. Compared with the control, application of Si fertilizer significantly enhanced the Zn, Ca and Mg concentrations in brown and milled rice but had nonsignificant effects on the Fe, Mn and Cu concentrations. Moreover, application of Si fertilizer resulted in significant increases in the concentrations of protein and most of the amino acids in brown and milled rice. However, the Gly, His, Val, Met and Lys concentrations were unaffected by the application of Si. The responses of the Cys and Phe concentrations to Si fertilizer application were cultivar-dependent. Applying Si significantly increased Zn, Ca, Mg and protein concentrations by 21.77%, 25.77%, 7.25% and 6.19% in milled rice and by 25.18%, 39.81%, 9.24% and 5.52% in brown rice. These results indicate that Si fertilizer could improve rice nutritional quality by increasing concentrations of mineral elements, protein and some amino acids in brown and milled rice.

show abstract

Effects of Foliar Iron Application on Iron Concentration in Polished Rice Grain and Its Bioavailability

Cited by 75 publications

References 33 publications

Enriching rice with Zn and Fe while minimizing Cd risk

Enriching rice with Zn and Fe while minimizing Cd risk

Climate engineering by mimicking natural dust climate control: the iron salt aerosol method

Application of silicon fertilizer affects nutritional quality of rice

Contact Info

Product

Resources

About