Abstract
Four trials were conducted over 3 years to assess the effect of ammonium thiosulfate (ATS) as a blossom thinner of ‘Delicious’ apple trees. In addition to determining the optimal concentration of ATS and the effectiveness of multiple applications, the effect on fruit quality was assessed. A program using ATS at bloom and 6-benzyladenine (BA) applied postbloom was examined. Multiple applications of ATS reduced crop load more than a single application. A concentration of 1.0% (v/v, 5800 mg/L) applied twice during the flowering period is recommended, with the first application at 20% bloom and the second at 80% bloom. Fruit firmness and sugar content were increased by ATS, and a positive relationship between fruit weight and sugar content and between fruit weight and firmness was demonstrated. ATS can also be effectively combined in a program with BA with the added benefits of increases in fruit size, firmness and sugar content; however, caution is advised to prevent over-thinning.
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Claims 7
Claim · model-written summary
Multiple applications of ATS reduced crop load more than a single application in Delicious apples.
- Taxon
- apples
Malus domesticat0 - Treatment
- Multiple applications of ATSe0
- Outcome
- crop loade0
- Direction
- reducede0
- Comparator
- a single applicatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“‘Delicious’ apples”
e0“Multiple applications of ATS reduced crop load more than a single application”
Claim · model-written summary
The authors recommend ATS at 1.0% (v/v, 5800 mg/L) applied twice during flowering, at 20% bloom and at 80% bloom.
- Taxon
- applesMalus domesticat0
- Treatment
- 1.0% (v/v, 5800 mg/L)e1
- Outcome
- 1.0% (v/v, 5800 mg/L) applied twice during the flowering periode1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“‘Delicious’ apples”
e1“A concentration of 1.0% (v/v, 5800 mg/L) applied twice during the flowering period is recommended, with the first application at 20% bloom and the second at 80% bloom”
Claim · model-written summary
ATS increased fruit firmness and sugar content in Delicious apples.
- Taxon
- applesMalus domesticat0
- Treatment
- ATSe2
- Outcome
- Fruit firmness and sugar contente2
- Direction
- increasede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“‘Delicious’ apples”
e2“Fruit firmness and sugar content were increased by ATS”
Claim · model-written summary
Fruit weight and sugar content were positively related.
- Taxon
- applesMalus domesticat0
- Organ / stage
- fruite3
- Outcome
- sugar contente3
- Direction
- positivee3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“‘Delicious’ apples”
e3“a positive relationship between fruit weight and sugar content”
Claim · model-written summary
Fruit weight and firmness were positively related.
- Taxon
- applesMalus domesticat0
- Organ / stage
- fruite4
- Outcome
- firmnesse4
- Direction
- positivee4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“‘Delicious’ apples”
e4“positive relationship between fruit weight and sugar content and between fruit weight and firmness”
Claim · model-written summary
ATS combined in a program with BA gave added increases in fruit size, firmness and sugar content.
- Taxon
- applesMalus domesticat0
- Treatment
- ATS can also be effectively combined in a program with BAe5
- Outcome
- fruit size, firmness and sugar contente5
- Direction
- increasese5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“‘Delicious’ apples”
e5“ATS can also be effectively combined in a program with BA with the added benefits of increases in fruit size, firmness and sugar content”
Claim · model-written summary
The authors advise caution to prevent over-thinning.
- Taxon
- applesMalus domesticat0
- Outcome
- prevent over-thinninge6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“‘Delicious’ apples”
e6“caution is advised to prevent over-thinning”
The same questions in other papers
N-benzyladenine · quality: sugar starch · Malus domestica (apple)Results differ
7 papers in the same direction as this paper · 3 in the opposite direction
- no effect
- no effect
- no effect
7 papers more in this group
See all 11 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.