Iron and zinc concentration of native Andean potato cultivars from a human nutrition perspective

Burgos, Gabriela; Amorós, Walter; Morote, Maximo; Stangoulis, James; Bonierbale, Merideth

doi:10.1002/jsfa.2765

Cited by 89 publications

(95 citation statements)

References 16 publications

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“…The rankings of the cultivars according to the tuber concentrations of the two minerals were identical indicating a positive correlation between the genotypic concentrations of the two minerals, which was also found in previous work with native Andean potatoes in Peru (Burgos et al 2007) and in other studies with potato (Carli and Khalikov 2008;Brown et al 2010;Lefèvre et al 2012). The ranking of the cultivars was maintained at all sites and following Fe and Zn fertilizer applications (Table 6).…”

Section: Discussionsupporting

confidence: 82%

Can Andean potatoes be agronomically biofortified with iron and zinc fertilizers?

Kromann¹,

Valverde

Alvarado

et al. 2016

Plant Soil

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Aims The aim of this study was to investigate the proofof-concept that Andean potato (Solanum tuberosum L., Andigenum Group) can be agronomically biofortified with iron (Fe) and zinc (Zn) fertilizers. Methods Greenhouse and field experiments were conducted in the Ecuadorian Andes with varying rates of foliar and soil applied Fe and Zn fertilizers to investigate the potential resulting increase in tuber Fe and tuber Zn concentrations.Results The study showed that simple fertilizer practices enhancing Zn supply to potato plants can increase tuber Zn concentrations. The rate of increase of tuber Zn following Zn fertilization was similar across cultivars. A concomitant negative effect of high rates of Zn applications on yield was not seen, and a maximum Zn application level for increasing tuber Zn concentration was not identified. A positive tuber yield effect was seen at one field site. High rates of foliar Zn application reached a 2.51-fold tuber Zn increase, and high rates of soil Zn application a 1.91-fold tuber Zn increase. The experiments showed no positive correlation between Fe fertilization and Fe concentration in tubers. Moreover, the study showed a strong effect of site on the concentration of Fe and Zn in tubers, and the tuber mineral concentrations across sites and treatments were negatively correlated with tuber yield. Conclusions The results confirmed the proof of concept that Andean potato cultivars can be agronomically Znbiofortified with foliar and soil applied Zn fertilizers. Tuber Fe concentrations of Andean potatoes were not increased with Fe fertilization.

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Section: Discussionsupporting

confidence: 82%

Can Andean potatoes be agronomically biofortified with iron and zinc fertilizers?

Kromann¹,

Valverde

Alvarado

et al. 2016

Plant Soil

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show abstract

“…The breeding program for zinc and iron potato is based at CIP, and initial screening of germplasm accessions found ranges of 8-25 ppm zinc (dry weight -DW) and 11-30 ppm iron (DW) in existing potato varieties [134,135]. Levels of vitamin C and phenolic compounds were also assessed, as these affect iron absorption [136].…”

Section: Zinc and Iron Potatomentioning

confidence: 99%

Progress update: Crop development of biofortified staple food crops under HarvestPlus

Andersson¹,

Saltzman²,

Virk³

et al. 2017

AJFAND

125

130

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“…Households from the community of Ccasapata had the lowest average total cropping area out of the four communities: 5901 (±3460) m 2 1 Fresh-weight, as opposed to dry-weight, iron and zinc concentrations were used because potato outputs were weighed in their raw, post-harvest state. No significant differences have been found between the iron and zinc concentrations of raw versus cooked potatoes [117,118]. Production features by crop species are summarized in Table 3.…”

Section: Agricultural Intervention Scenariosmentioning

confidence: 99%

The challenge of achieving basal energy, iron and zinc provision for home consumption through family farming in the Andes: a comparison of coverage through contemporary production systems and selected agricultural interventions

et al. 2016

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Background: Child undernutrition is persistently high in the central Andes of Peru, and numerous smallholder households fail to meet their basic needs of energy, iron and zinc. Food-based approaches assume household-level nutrition can be improved following agricultural interventions. This study assesses for the first time whether current Andean production systems provide sufficient energy, iron and zinc output to meet household-level requirements and explores the likely effect of commonly promoted food-based approaches. Across four communities, we determined the crop and livestock production output for each household (n = 165) during one growing season. The household-level nutritional demand or input was calculated as a function of household composition and daily requirements of energy, iron and zinc as established by FAO/WHO. We examined five scenarios, current practice or status quo and four food-based interventions: (1) increased potato yield, (2) introduced biofortified potatoes, (3) promotion of guinea pigs and (4) a mixed strategy combining all of the above. Results:Under status quo, 86, 62 and 76 % of households obtained sufficient production output to meet energy, iron and zinc requirements, respectively. Considering the three parameters simultaneously, 59 % of households were able to meet their energy, iron and zinc requirements. The total crop production among households provided more than the necessary energy, iron and zinc output to meet the demand of all 165 households. Yet, significant differences between households account for individual deficits or surpluses in household-level output-input balances. Potato (Solanum spp.), barley (Hordeum vulgare) and faba (Vicia faba) production was particularly significant in determining the energy, iron and zinc output. Livestock did not make a substantial contribution. The main difference between households with negative versus positive coverage, in terms of household-level production output from agriculture meeting demand (=input), was available cropping area given household size. None of the explored food-based interventions closed the energy, iron and zinc deficit from production among households with negative coverage. Conclusions:The smallholder production systems analyzed are only partially capable of providing sufficient production output to cover household-level energy, iron and zinc demands. Of the four interventions examined, a mixed

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Iron and zinc concentration of native Andean potato cultivars from a human nutrition perspective

Abstract: Journal articleIFPRI3; HarvestPlusHarvestPlusNon-P

Cited by 89 publications

References 16 publications

Can Andean potatoes be agronomically biofortified with iron and zinc fertilizers?

Can Andean potatoes be agronomically biofortified with iron and zinc fertilizers?

Progress update: Crop development of biofortified staple food crops under HarvestPlus

The challenge of achieving basal energy, iron and zinc provision for home consumption through family farming in the Andes: a comparison of coverage through contemporary production systems and selected agricultural interventions

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