Paper · 2010 · Bertelsen, M, Jensen, N L & Lindhard Pedersen, H 2010, Flower thinning of apples cv 'Elshof' using environmentally friendly compounds. in Eco-fruit. 14th International Conference on Organic Fruit-Growing. pp. 191-195, International Conference on Organic Fruit-Growing, Universität Hohenheim, Germany, 22/02/2010.

Flower thinning of apples cv 'Elshof' using environmentally friendly compounds.

Marianne Bertelsen; Nauja Lisa Jensen; Hanne Lindhard Pedersen

7
claims
14
verbatim quotes
0
citations
4
research areas
—
Not open access

Abstract

As part of the ISAFRUIT project we conducted three years of thinning trials using environmental friendly compounds that potentially may be registered and allowed for organic fruit production. In the first year four different compounds were tested; two clay compounds, NaCl (kitchen salt) and lime sulphur. In the second year the number of compounds was reduced to the three compounds that had showed potential as thinners in the first year and finally in the last year focus was solely on NaCl. Based on three years experiments we conclude that NaCl is a potential thinner of Elstar which is normally regarded as hard-to-thin variety. Multiple applications, however, may lead to over-thinning. Thinning with NaCl improved return bloom significantly and to an extent that levels out biennial bearing. NaCl application caused moderate to severe leaf damage, but no russet on the fruits. NaCl is a cheap, efficient and environmentally friendly compound (in the dosages used – which is equivalent to brackish water) that is capable of thinning even difficult and biennial apple varieties.

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Claims 7

Observationauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

NaCl is a potential flower thinner of Elstar apple, a variety normally hard to thin.

Material
Elstare0
Treatment
NaCle0
Outcome
potential thinnere0

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

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

Verbatim

e0

“NaCl is a potential thinner of Elstar which is normally regarded as hard-to-thin variety”

✓ located verbatim in the source · abstract, characters 545–633 · show in text ↑
e1

“capable of thinning even difficult and biennial apple varieties”

✓ located verbatim in the source · abstract, characters 1020–1083 · show in text ↑
Associationhypothesisoriginal resultnegativebasis n/a

Claim · model-written summary

Multiple NaCl applications may lead to over-thinning (author hypothesis).

Treatment
Multiple applicationse0
Outcome
over-thinninge0

Not reportedDirection

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

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

Verbatim

e0

“Multiple applications, however, may lead to over-thinning”

✓ located verbatim in the source · abstract, characters 635–692 · show in text ↑
e1

“capable of thinning even difficult and biennial apple varieties”

✓ located verbatim in the source · abstract, characters 1020–1083 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Thinning with NaCl significantly improved return bloom in apple.

Treatment
NaCle0
Outcome
return bloome0
Direction
improvede0

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

“Thinning with NaCl improved return bloom significantly and to an extent that levels out biennial bearing”

✓ located verbatim in the source · abstract, characters 694–798 · show in text ↑
e1

“capable of thinning even difficult and biennial apple varieties”

✓ located verbatim in the source · abstract, characters 1020–1083 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

NaCl thinning levels out biennial bearing in apple.

Treatment
NaCle0
Outcome
biennial bearinge0
Qualifier
levels oute0

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

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

Verbatim

e0

“Thinning with NaCl improved return bloom significantly and to an extent that levels out biennial bearing”

✓ located verbatim in the source · abstract, characters 694–798 · show in text ↑
e1

“capable of thinning even difficult and biennial apple varieties”

✓ located verbatim in the source · abstract, characters 1020–1083 · show in text ↑
Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

NaCl application caused moderate to severe leaf damage in apple.

Organ / stage
leafe0
Treatment
NaCl applicatione0
Outcome
leaf damagee0
Qualifier
moderate to severee0

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

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

Verbatim

e0

“NaCl application caused moderate to severe leaf damage, but no russet on the fruits”

✓ located verbatim in the source · abstract, characters 800–883 · show in text ↑
e1

“capable of thinning even difficult and biennial apple varieties”

✓ located verbatim in the source · abstract, characters 1020–1083 · show in text ↑
Observationobservedoriginal resultno effectmeasured

Claim · model-written summary

NaCl application caused no russet on apple fruits.

Organ / stage
fruitse0
Treatment
NaCl applicatione0
Outcome
russete0

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

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

Verbatim

e0

“NaCl application caused moderate to severe leaf damage, but no russet on the fruits”

✓ located verbatim in the source · abstract, characters 800–883 · show in text ↑
e1

“capable of thinning even difficult and biennial apple varieties”

✓ located verbatim in the source · abstract, characters 1020–1083 · show in text ↑
Observationauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

NaCl is capable of thinning difficult and biennial apple varieties.

Material
difficult and biennial apple varietiese1
Treatment
NaCle0
Outcome
thinninge1

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

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

Verbatim

e0

“NaCl is a cheap, efficient and environmentally friendly compound”

✓ located verbatim in the source · abstract, characters 885–949 · show in text ↑
e1

“capable of thinning even difficult and biennial apple varieties”

✓ located verbatim in the source · abstract, characters 1020–1083 · show in text ↑

sodium chloride · yield · Malus domestica (apple)Results agree

7 papers: 7 positive, 0 negative or no effect

6 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

3 papers more in this group

See all 7 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.