Paper · 2008 · Journal of Plant Nutrition

Effect of Pre-Harvest Calcium Sprays on Calcium Concentrations in the Skin and Flesh of Apples

Jesús Val; Emilio Monge; David Risco; et al.

5
claims
10
verbatim quotes
51
citations
3
research areas
✓
Open access · other-oa

Abstract

ABSTRACT During 2004 and 2006, experiments were conducted that measured the absorption of calcium (Ca) by the fruit and assessed the effects of Ca sprays on the skin and flesh of apples. Frequent (1 spray/month for 2 or 4 months) Ca treatments increased the concentration of Ca in the skin, but not in the flesh of fruit, and several sprays were needed to promote a prolonged increase in the concentration of Ca in the skin. Calcium sprays did not influence the concentrations of magnesium (Mg) and potassium (K). Foliar analyses confirmed the absorption of topical Ca by the apple tree following the Ca sprays as the concentration of Ca in leaves increased.

Abstract from the paper’s OpenAlex record; open copy licensed other-oa. 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 5

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Frequent calcium sprays increased calcium concentration in apple skin.

Treatment
Frequent (1 spray/month for 2 or 4 months) Ca treatmentse0
Outcome
concentration of Ca in the skine0
Direction
increasede0

Not reportedComparator

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“Frequent (1 spray/month for 2 or 4 months) Ca treatments increased the concentration of Ca in the skin”

✓ located verbatim in the source · abstract, characters 187–289 · show in text ↑
t0

“Apples”

✓ located verbatim in the source · title, characters 88–94 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Frequent calcium sprays did not increase calcium concentration in apple flesh.

Treatment
Ca treatmentse0
Outcome
flesh of fruite1
Direction
note0

Not reportedComparator

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“Ca treatments increased the concentration of Ca in the skin, but not in the flesh of fruit”

✓ located verbatim in the source · abstract, characters 230–320 · show in text ↑
e1

“concentration of Ca in the skin, but not in the flesh of fruit”

✓ located verbatim in the source · abstract, characters 258–320 · show in text ↑
t0

“Apples”

✓ located verbatim in the source · title, characters 88–94 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Several calcium sprays were required for a prolonged increase of calcium concentration in apple skin.

Treatment
several sprayse0
Outcome
concentration of Ca in the skine0
Direction
increasee0

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“several sprays were needed to promote a prolonged increase in the concentration of Ca in the skin”

✓ located verbatim in the source · abstract, characters 326–423 · show in text ↑
t0

“Apples”

✓ located verbatim in the source · title, characters 88–94 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Calcium sprays did not influence magnesium and potassium concentrations.

Treatment
Calcium sprayse0
Outcome
concentrations of magnesium (Mg) and potassium (K)e0
Direction
did not influencee0

Not reportedComparator

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“Calcium sprays did not influence the concentrations of magnesium (Mg) and potassium (K)”

✓ located verbatim in the source · abstract, characters 425–512 · show in text ↑
t0

“Apples”

✓ located verbatim in the source · title, characters 88–94 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Calcium sprays increased leaf calcium concentration, confirming uptake by the apple tree.

Taxon
apple treeMalus domesticae0
Treatment
Ca sprayse0
Outcome
concentration of Ca in leavese0
Direction
increasede0

Not reportedComparator

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

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“Foliar analyses confirmed the absorption of topical Ca by the apple tree following the Ca sprays as the concentration of Ca in leaves increased”

✓ located verbatim in the source · abstract, characters 514–657 · show in text ↑

calcium atom · molecular: metabolites · Malus domestica (apple)Results differ

19 papers: 15 positive, 4 negative or no effect

14 papers in the same direction as this paper · 4 in the opposite direction

  1. positive
  2. no effect
  3. no effect

15 papers more in this group

See all 19 papers →

calcium atom · nutrient: content · Malus domestica (apple)Results differ

51 papers: 37 positive, 14 negative or no effect

13 papers in the same direction as this paper · 37 in the opposite direction

  1. positive
  2. positive
  3. positive

47 papers more in this group

See all 51 papers →

application · molecular: metabolites · Malus domestica (apple)Positive and negative results

61 papers: 47 positive, 14 negative or no effect

46 papers in the same direction as this paper · 13 in the opposite direction · 1 reporting no difference from an alternative

  1. positive
  2. no effect
  3. negative

57 papers more in this group

See all 61 papers →

application · nutrient: content · Malus domestica (apple)Positive and negative results

116 papers: 100 positive, 16 negative or no effect

15 papers in the same direction as this paper · 100 in the opposite direction

  1. positive
  2. positive
  3. positive

112 papers more in this group

See all 116 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.