Harvesting more grain zinc of wheat for human health

Chen, Xinping; Zhang, Yueqiang; Tong, Yiping; Xue, Yuanchao; Liu, Dunyi; Zhang, Wei; Deng, Yan; Meng, Qingfeng; Yue, Shanchao; Peng, Yan; Cui, Zhenling; Shi, Xiaojun; Guo, Shiwei; Sun, Yixiang; Ye, Youliang; Wang, Zhaohui; Liu, Jia; Ma, Wenqi; He, Mingrong; Zhang, Xiying; Kou, Changlin; Li, Yanting; Tan, Deshui; Çakmak, İsmail; Zhang, Fusuo; Zou, Chunqin

doi:10.1038/s41598-017-07484-2

Cited by 89 publications

(93 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Recent efforts to biofortify edible crops with Zn have focused primarily on staple crops, such as cereals, pulses, cassava and potatoes, and maximum Zn concentrations of 0.02-0.10 mg g −1 DW, depending upon the crop, have been achieved without loss of yield [1,6,9,[12][13][14][15][16][17][18][19][20][21]. The critical shoot Zn concentrations in cabbage and broccoli reported here generally exceed these values (Table 1).…”

Section: Discussionmentioning

confidence: 72%

“…It is, therefore, unwise to extrapolate from the critical substrate fertiliser Zn concentrations obtained in the experiments reported here (Table 1) directly to farmers' fields. It is also noteworthy that in soils where the phytoavailability of Zn applied as fertiliser decreases rapidly, the Zn biofortification of crops is generally achieved by foliar application of Zn fertilisers [1,5,9,11,13,15,20,37].…”

Section: Discussionmentioning

confidence: 99%

“…Inorganic fertilisers are often preferred because of their consistent composition; foliar applications are most effective where the phytoavailability of Zn decreases rapidly when applied to the soil [1,5]. Recent biofortification efforts have focused largely on developing germplasm and agronomic strategies to increase Zn concentrations in staple crops including cereals, pulses, cassava and potatoes, and Zn concentrations approaching 0.02-0.10 mg g −1 dry weight (DW), depending upon the crop, have been achieved [1,6,9,[12][13][14][15][16][17][18][19][20][21]. However, greater Zn concentrations can be achieved in leafy vegetables than in fruits, seeds or tubers because Zn transport in the phloem limits Zn accumulation in the latter tissues [13].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Limits to the Biofortification of Leafy Brassicas with Zinc

et al. 2018

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: Discussionmentioning

confidence: 72%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Limits to the Biofortification of Leafy Brassicas with Zinc

et al. 2018

View full text Add to dashboard Cite

show abstract

“…For the past two decades, scientists have hailed genetically modified (GM) crops and chemical fertilizer as the magic bullet that will solve the world's food crisis [1]. Farming system design has always been relatively neglected.…”

Section: Introductionmentioning

confidence: 99%

Impact of Increasing Maize Densities on Agronomic Performances and the Community Stability of Productivity of Maize/Peanut Intercropping Systems

Xia¹,

Wang²,

Xue³

et al. 2019

Agronomy

View full text Add to dashboard Cite

Rational crop community structure plays an important role in maximizing the intercropping yield advantage. Effects of increasing maize densities in maize (Zea mays L.)/peanut (Arachis hypogaea L.) intercropping on yields and other agronomic traits, and the community stability of productivity were conducted across three different experimental sites. There were significant and positive correlations between maize densities and both maize grain/biomass yields and corresponding partial land equivalent ratios (LERs) across all three locations; but grain/biomass yields and partial LERs of peanut were all negatively correlated with maize densities in each or across all locations. LERs of grain yields averaged over three locations ranged from 0.89 to 0.98, while LERs of biomass yields ranged from 0.94 to 1.09 (>1.0 except for the maize inter-plant distance of 27 cm), indicating the intercropping advantage on biomass yields but not grain yields. Peanut had significantly lower kernel harvest indexes than those in monoculture. Excessive narrowing maize inter-plant distances reduced the community stability of productivity severely (especially for maize and total LERs) and are more likely to lead to abnormal maize and peanut plants. Therefore, a rational increase of maize densities in intercropping is suggested to keep the balance between maize and peanut and the comprehensive yield advantage.

show abstract

“…In these areas, residents cannot get sufficient Zn intake from daily 38 diets which are mainly low-Zn cereals like wheat, maize, and rice (Wessells and Brown, 2012). 39 Increasing the Zn concentration of cereal grains, known as Zn biofortification, is the main solution to 40 alleviate human Zn deficiency, and the target of Zn fortified wheat grain is 40-50 mg kg -1 (Cakmak 41 2018), much higher than the current worldwide grain Zn concentration of 20-30 mg kg -1 (Liu et al,42 2014; Chen et al, 2017). To close the gap between the current and target level, it is necessary to fully 43 understand the factors affecting grain Zn concentration.…”

mentioning

confidence: 99%

Quantify the Requirements to Achieve Grain Zn Biofortification of High-yield Wheat on Calcareous Soils

Wang

et al. 2020

Preprint

View full text Add to dashboard Cite

15The solution to address global human Zn deficiency is Zn biofortification of staple food crops, aimed 16 at high grain Zn concentration as well as high yield. However, the desired high grain Zn 17 concentration above 40 mg kg -1 is rarely observed for high-yield wheat on worldwide calcareous 18 soils, due to inadequate Zn uptake or Zn distribution to grain. The present study aims to investigate 19 how much Zn uptake or distribution is adequate to achieve the Zn.t of high-yield wheat on calcareous 20 soils with low available Zn (~ 0.5 mg kg -1 ). Of the 123 cultivars tested in a three-year field 21 experiment, 19 high-yield cultivars were identified with similar yields around 7.0 t ha -1 and various 22grain Zn concentrations from 9.3 to 26.7 mg kg -1 . The adequate Zn distribution to grain was defined 23 from the view of Zn biofortification, as the situation where the Zn distribution to grain (Zn harvest 24 index) increased to the observed maximum of ~ 91.0% and the Zn concentration of vegetative parts 25 (straw Zn concentration) decreased to the observed minimum of ~ 1.5 mg kg -1 (Zn.m). Under the 26 assumed condition of adequate Zn distribution to grain (~ 91.0%), all the extra Zn above Zn.m was 27 remobilized from straw to grain and the grain Zn concentration would be increased to its highest 28 attainable level, which was 14.5 ~ 31.3 mg kg -1 for the 19 high-yield cultivars but still lower than 40 29 mg kg -1 . Thus, even with the adequate Zn distribution to grain, the current Zn uptake is still not 30 adequate and needs to be increased to 308 g ha -1 or higher to achieve Zn.t for high-yield wheat (7.0 t 31 ha -1 ) on low-Zn calcareous soils. Besides, the established method here can also provide the priority 32 measures and quantitative guidelines to achieve Zn biofortification in other wheat production 33regions. 34

show abstract

Harvesting more grain zinc of wheat for human health

Cited by 89 publications

References 30 publications

Limits to the Biofortification of Leafy Brassicas with Zinc

Limits to the Biofortification of Leafy Brassicas with Zinc

Impact of Increasing Maize Densities on Agronomic Performances and the Community Stability of Productivity of Maize/Peanut Intercropping Systems

Quantify the Requirements to Achieve Grain Zn Biofortification of High-yield Wheat on Calcareous Soils

Contact Info

Product

Resources

About