Paper · 2019 · Agronomy

Winter Wheat Grain Quality, Zinc and Iron Concentration Affected by a Combined Foliar Spray of Zinc and Iron Fertilizers

Etienne Niyigaba; Angelique Twizerimana; Innocent Mugenzi; et al.

8
claims
15
verbatim quotes
111
citations
2
research areas
✓
Open access · cc-by

Abstract

Wheat (Triticum aestivum L.) is one of the main foods globally. Nutrition problems associated with Zinc and Iron deficiency affect more than two billion individuals. Biofortification is a strategy believed to be sustainable, economical and easily implemented. This study evaluated the effect of combined Zn and Fe applied as foliar fertilizer to winter wheat on grain yield, quality, Zn and Fe concentration in the grains. Results showed that treatments containing high Fe increased the yield. Grain crude fat content remained unaffected. Crude fiber was enhanced up to three-fold by 60% Zn + 40% Fe5.5 (5.5 kg ha−1 of 60% Zn + 40% Fe). Moreover, 80% Zn + 20% Fe5.5 (5.5 kg ha−1 of 80% Zn + 20% Fe) was the best combination for increasing crude protein. Zinc applied alone enhanced Zn concentration in grain. In addition, Fe was slightly improved by an application of Zn and Fe in the first year, but a greater increase was observed in the second year, where 100% Fe13 (13 kg ha−1 of 100% Fe) was the best in improving Fe in grain. Foliar application of Zn and Fe is a practical approach to increase Zn and Fe concentration, and to improve the quality of wheat grains.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗

The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 8

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

High Fe treatments increased wheat yield.

Taxon
Winter WheatTriticum aestivumt0
Treatment
treatments containing high Fee0
Outcome
yielde0
Direction
increasede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“treatments containing high Fe increased the yield”

✓ located verbatim in the source · abstract, characters 443–492 · show in text ↑
t0

“Winter Wheat”

✓ located verbatim in the source · title, characters 0–12 · show in text ↑
Observationobservedoriginal resultno effectmeasured

Claim · model-written summary

Grain crude fat content was unaffected.

Taxon
Winter WheatTriticum aestivumt0
Outcome
Grain crude fat contente0
Direction
remained unaffectede0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Grain crude fat content remained unaffected”

✓ located verbatim in the source · abstract, characters 494–537 · show in text ↑
t0

“Winter Wheat”

✓ located verbatim in the source · title, characters 0–12 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The 60% Zn + 40% Fe5.5 treatment enhanced crude fiber up to threefold.

Taxon
Winter WheatTriticum aestivumt0
Treatment
60% Zn + 40% Fe5.5e0
Outcome
Crude fibere0
Direction
enhancede0
Value
three-folde0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Crude fiber was enhanced up to three-fold by 60% Zn + 40% Fe5.5 (5.5 kg ha−1 of 60% Zn + 40% Fe)”

✓ located verbatim in the source · abstract, characters 539–635 · show in text ↑
t0

“Winter Wheat”

✓ located verbatim in the source · title, characters 0–12 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The 80% Zn + 20% Fe5.5 combination was best for increasing crude protein.

Taxon
Winter WheatTriticum aestivumt0
Treatment
80% Zn + 20% Fe5.5e0
Outcome
crude proteine0
Direction
increasinge0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“80% Zn + 20% Fe5.5 (5.5 kg ha−1 of 80% Zn + 20% Fe) was the best combination for increasing crude protein”

✓ located verbatim in the source · abstract, characters 647–752 · show in text ↑
t0

“Winter Wheat”

✓ located verbatim in the source · title, characters 0–12 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Zinc alone enhanced grain Zn concentration.

Taxon
Winter WheatTriticum aestivumt0
Treatment
Zinc applied alonee0
Outcome
Zn concentration in graine0
Direction
enhancede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Zinc applied alone enhanced Zn concentration in grain”

✓ located verbatim in the source · abstract, characters 754–807 · show in text ↑
t0

“Winter Wheat”

✓ located verbatim in the source · title, characters 0–12 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Zn and Fe application slightly improved grain Fe in the first year.

Taxon
Winter WheatTriticum aestivumt0
Treatment
application of Zn and Fee0
Outcome
Fee0
Direction
slightly improvede0
Qualifier
first yeare0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Fe was slightly improved by an application of Zn and Fe in the first year”

✓ located verbatim in the source · abstract, characters 822–895 · show in text ↑
t0

“Winter Wheat”

✓ located verbatim in the source · title, characters 0–12 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The second year showed a greater increase in grain Fe, with 100% Fe13 best.

Taxon
Winter WheatTriticum aestivumt0
Treatment
100% Fe13e0
Outcome
Fe in graine0
Direction
improvinge0
Qualifier
second yeare0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“a greater increase was observed in the second year, where 100% Fe13 (13 kg ha−1 of 100% Fe) was the best in improving Fe in grain”

✓ located verbatim in the source · abstract, characters 901–1030 · show in text ↑
t0

“Winter Wheat”

✓ located verbatim in the source · title, characters 0–12 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

Foliar Zn and Fe application was recommended to improve wheat grain Zn, Fe, and quality.

Outcome
increase Zn and Fe concentration, and to improve the quality of wheat grainse0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Foliar application of Zn and Fe is a practical approach to increase Zn and Fe concentration, and to improve the quality of wheat grains”

✓ located verbatim in the source · abstract, characters 1032–1167 · show in text ↑

zinc atom · quality: grain · Triticum aestivum (wheat)Results differ

20 papers: 17 positive, 3 negative or no effect

16 papers in the same direction as this paper · 3 in the opposite direction

  1. negative
  2. no effect
  3. no effect

16 papers more in this group

See all 20 papers →

zinc atom · quality: protein · Triticum aestivum (wheat)Results differ

64 papers: 56 positive, 8 negative or no effect

55 papers in the same direction as this paper · 8 in the opposite direction

  1. positive
  2. positive
  3. no effect

60 papers more in this group

See all 64 papers →

iron atom · nutrient: content · Triticum aestivum (wheat)Results differ

74 papers: 61 positive, 13 negative or no effect

60 papers in the same direction as this paper · 12 in the opposite direction · 1 reporting no difference from an alternative

  1. positive
  2. positive
  3. positive

70 papers more in this group

See all 74 papers →

iron atom · yield · Triticum aestivum (wheat)Results differ

99 papers: 92 positive, 7 negative or no effect

91 papers in the same direction as this paper · 7 in the opposite direction

  1. no effect
  2. positive
  3. positive

95 papers more in this group

See all 99 papers →

zinc atom · nutrient: content · Triticum aestivum (wheat)Results differ

380 papers: 347 positive, 33 negative or no effect

346 papers in the same direction as this paper · 33 in the opposite direction

  1. positive
  2. positive
    Foliar chelated zinc yielded about two-fold greater shoot zinc concentrations than root zinc supply or foliar ZnO.

    Zinc Mobility in Wheat: Uptake and Distribution of Zinc Applied to Leaves or Roots · 2001 · compared with plants supplied with Zn in the root environment or via foliar spray of ZnO

    Same directionCited by this paper

  3. positive

376 papers more in this group

See all 380 papers →

Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.