Shoot zinc (Zn) concentration varies widely within<i>Brassica oleracea</i>L. and is affected by soil Zn and phosphorus (P) levels

Broadley, Martin R.; Lochlainn, Seosamh Ó; Hammond, John P.; Bowen, Helen C.; Çakmak, İsmail; Eker, S.; Erdem, Halil; King, Graham J.; White, Philip J.

doi:10.1080/14620316.2010.11512683

Cited by 43 publications

(47 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Among the cabbage genotypes, shoot Zn concentrations were greatest in Bison and least in Tundra (Table S1, Figure 1), which is consistent with the observations of Broadley et al [28] when ample phosphorus was supplied. Among the broccoli genotypes, Waltham 29 generally had the greatest shoot Zn concentration and Belstar the smallest shoot Zn concentration when Zn fertiliser was applied, although this order was reversed when no Zn fertiliser was applied (Table S1, Figure 3).…”

Section: Discussionsupporting

confidence: 80%

“…capitata) genotypes were selected for study on the basis of their potentially large leaf zinc (Zn) concentrations based on data presented by [28] These genotypes were selected on the basis of their potentially contrasting leaf Zn concentrations based on data presented by [28]. Seeds of Belstar, Chevalier, Marathon and Waltham 29 were obtained from Van Meuwen (Spalding, UK), Kings Seeds Direct (Colchester, UK) and Unwins (Huntingdon, UK).…”

Section: Plant Materialsmentioning

confidence: 99%

“…acephala) genotypes grown together in the field in New Hampshire, USA, over two years ranged from 0.033 to 0.060 mg Zn g −1 DW [27]; and leaf Zn concentrations of 6 kale genotypes grown in the field in KwaZulu-Natal Province, South Africa, ranged from 0.025 to 0.032 mg Zn g −1 DW [33]. However, although the heritability of shoot Zn concentration in B. oleracea is significant and several chromosomal quantitative trait loci (QTL) affecting shoot Zn concentration have been identified in this species, the heritability is often low and the QTL identified depends on the growth conditions [28,29,34]. The aim of the experiments reported here was, therefore, to determine the limit to Zn biofortification-using a Zn fertiliser-of two leafy brassicas, cabbage and broccoli, which contribute significantly to human diets worldwide.…”

Section: Introductionmentioning

confidence: 99%

“…A large variation in shoot Zn concentration has been reported among the genotypes of B. oleracea [26][27][28][29][30][31][32]. For example, shoot Zn concentration among 36 cabbage genotypes grown together in a field in Himachal Pradesh, India, ranged from 0.002 to 0.005 mg Zn g −1 fresh weight [29]; significant differences in leaf Zn concentrations were observed among three cabbage genotypes grown together in the field in Pennsylvania, USA [26]; floret Zn concentrations of 10 broccoli genotypes grown together in Poznań, Poland, ranged from 0.042 to 0.066 mg Zn g −1 DW [30]; the average shoot Zn concentration of 22 kale (B. oleracea var.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Limits to the Biofortification of Leafy Brassicas with Zinc

et al. 2018

Self Cite

View full text Add to dashboard Cite

Many humans lack sufficient zinc (Zn) in their diet for their wellbeing and increasing Zn concentrations in edible produce (biofortification) can mitigate this. Recent efforts have focused on biofortifying staple crops. However, greater Zn concentrations can be achieved in leafy vegetables than in fruits, seeds, or tubers. Brassicas, such as cabbage and broccoli, are widely consumed and might provide an additional means to increase dietary Zn intake. Zinc concentrations in brassicas are limited primarily by Zn phytotoxicity. To assess the limits of Zn biofortification of brassicas, the Zn concentration in a peat:sand (v/v 75:25) medium was manipulated to examine the relationship between shoot Zn concentration and shoot dry weight (DW) and thereby determine the critical shoot Zn concentrations, defined as the shoot Zn concentration at which yield is reduced below 90%. The critical shoot Zn concentration was regarded as the commercial limit to Zn biofortification. Experiments were undertaken over six successive years. A linear relationship between Zn fertiliser application and shoot Zn concentration was observed at low application rates. Critical shoot Zn concentrations ranged from 0.074 to 1.201 mg Zn g −1 DW among cabbage genotypes studied in 2014, and between 0.117 and 1.666 mg Zn g −1 DW among broccoli genotypes studied in 2015-2017. It is concluded that if 5% of the dietary Zn intake of a population is currently delivered through brassicas, then the biofortification of brassicas from 0.057 to > 0.100 mg Zn g −1 DW through the application of Zn fertilisers could increase dietary Zn intake substantially.

show abstract

Section: Discussionsupporting

confidence: 80%

Section: Plant Materialsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Limits to the Biofortification of Leafy Brassicas with Zinc

et al. 2018

Self Cite

View full text Add to dashboard Cite

show abstract

“…40-70 mg kg −1 DW. The concentration of Zn in edible leaves is dependent on both environmental factors, such as the concentration of extractable Zn in the soil, and genetic factors which show high heritability in some, but not all, species (Wu et al 2007(Wu et al , 2008Broadley et al 2010); thus there is scope for biofortification of edible leaves through agronomic or breeding approaches.…”

Section: Baseline Dietary Zn Supplies and Deficiency Prevalencementioning

confidence: 99%

Zinc-enriched fertilisers as a potential public health intervention in Africa

Stein²,

et al. 2015

View full text Add to dashboard Cite

Background In this review, we examine the potential of Zn-enriched fertilisers to alleviate human dietary Zn deficiency. The focus is on ten African countries where dietary Zn supply is low and where fertiliser subsidies are routinely deployed on cereal crops. Scope Dietary Zn supply and deficiency prevalence were quantified from food supply and composition data. Typical effects of soil (granular) and foliar Zn applications on Zn concentrations in maize (Zea mays L.), rice (Oryza sativa L.) and wheat (Triticum aestivum L.) grains were based on a systematic literature review. Reductions in disease burdens attributable to Zn deficiency and cost-effectiveness were estimated using a disability-adjusted life years (DALYs) approach. Conclusions Baseline Zn supply in 2009 ranged from 7.1 (Zambia) to 11.9 (Mali) mg capita −1 day −1

show abstract

Properties and management of cationic elements for crop growth

White

Greenwood

2013

Soil Conditions and Plant Growth

View full text Add to dashboard Cite

Shoot zinc (Zn) concentration varies widely withinBrassica oleraceaL. and is affected by soil Zn and phosphorus (P) levels

Cited by 43 publications

References 21 publications

Limits to the Biofortification of Leafy Brassicas with Zinc

Limits to the Biofortification of Leafy Brassicas with Zinc

Zinc-enriched fertilisers as a potential public health intervention in Africa

Properties and management of cationic elements for crop growth

Contact Info

Product

Resources

About