Paper · 1993 · HortScience

BLOSSOM THINNING OF `WENATCHEE' AND `TILTON' APRICOTS WITH AMMONIUM THIOSULPHATE

Norman E. Looney; Michael A. Beulah

10
claims
19
verbatim quotes
0
citations
2
research areas
✓
Open access

Abstract

A single spray of ammonium thiosulphate (ATS) fertilizer applied when the spur flowers are approaching full bloom and lateral flowers are at about 50% of full bloom effectively reduced hand-thinning time and substantially improved fruit size of apricot in experiments conducted over a four year period. When applied as a gun spray to solution run-off, 0.4% and 0.5% ATS reduced hand-thinning time by at least one-third, increased fruit size by about 20%, and did not reduce branch and tree yields compared to control trees hand-thinned at the normal time. Airblast sprays also proved effective but the amount of wetting appears to be very critical to success. With mature plantations, 1500 to 1800 L/ha of 3% ATS gave satisfactory results. Information concerning the relative susceptibility of spur and lateral flowers and beneficial effects on fruit color and internal quality will be presented and discussed.

Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. 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 10

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

ATS spray at bloom reduced hand-thinning time.

Taxon
apricotPrunus armeniacat0
Treatment
ammonium thiosulphate (ATS) fertilizere0
Outcome
hand-thinning timee0
Direction
reducede0

Not reportedComparator

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

Prunus armeniaca
Prunus armeniaca · TaxonFir0002 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“A single spray of ammonium thiosulphate (ATS) fertilizer applied when the spur flowers are approaching full bloom and lateral flowers are at about 50% of full bloom effectively reduced hand-thinning time”

✓ located verbatim in the source · abstract, characters 0–203 · show in text ↑
t0

“apricot”

✓ located after whitespace/quote normalisation · title, characters 45–52 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

ATS spray at bloom improved apricot fruit size.

Taxon
apricotPrunus armeniacae0
Treatment
ammonium thiosulphate (ATS) fertilizere0
Outcome
fruit sizee0
Direction
improvede0

Not reportedComparator

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

Prunus armeniaca
Prunus armeniaca · TaxonFir0002 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“A single spray of ammonium thiosulphate (ATS) fertilizer applied when the spur flowers are approaching full bloom and lateral flowers are at about 50% of full bloom effectively reduced hand-thinning time and substantially improved fruit size of apricot”

✓ located verbatim in the source · abstract, characters 0–252 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Gun-spray 0.4% ATS reduced thinning time by at least one-third.

Taxon
apricotPrunus armeniacat0
Treatment
0.4%e0
Outcome
hand-thinning timee0
Direction
reducede0
Value
at least one-thirde0

Not reportedComparator

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

Prunus armeniaca
Prunus armeniaca · TaxonFir0002 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“0.4% and 0.5% ATS reduced hand-thinning time by at least one-third”

✓ located verbatim in the source · abstract, characters 352–418 · show in text ↑
t0

“apricot”

✓ located after whitespace/quote normalisation · title, characters 45–52 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Gun-spray 0.5% ATS reduced thinning time by at least one-third.

Taxon
apricotPrunus armeniacat0
Treatment
0.5% ATSe0
Outcome
hand-thinning timee0
Direction
reducede0
Value
at least one-thirde0

Not reportedComparator

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

Prunus armeniaca
Prunus armeniaca · TaxonFir0002 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“0.4% and 0.5% ATS reduced hand-thinning time by at least one-third”

✓ located verbatim in the source · abstract, characters 352–418 · show in text ↑
t0

“apricot”

✓ located after whitespace/quote normalisation · title, characters 45–52 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Gun-spray 0.4% ATS increased fruit size about 20%.

Taxon
apricotPrunus armeniacat0
Treatment
0.4%e0
Outcome
fruit sizee0
Direction
increasede0
Value
about 20%e0

Not reportedComparator

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

Prunus armeniaca
Prunus armeniaca · TaxonFir0002 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“0.4% and 0.5% ATS reduced hand-thinning time by at least one-third, increased fruit size by about 20%”

✓ located verbatim in the source · abstract, characters 352–453 · show in text ↑
t0

“apricot”

✓ located after whitespace/quote normalisation · title, characters 45–52 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Gun-spray 0.5% ATS increased fruit size about 20%.

Taxon
apricotPrunus armeniacat0
Treatment
0.5% ATSe0
Outcome
fruit sizee0
Direction
increasede0
Value
about 20%e0

Not reportedComparator

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

Prunus armeniaca
Prunus armeniaca · TaxonFir0002 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“0.4% and 0.5% ATS reduced hand-thinning time by at least one-third, increased fruit size by about 20%”

✓ located verbatim in the source · abstract, characters 352–453 · show in text ↑
t0

“apricot”

✓ located after whitespace/quote normalisation · title, characters 45–52 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

0.4% ATS did not reduce branch or tree yields versus normally hand-thinned controls.

Taxon
apricotPrunus armeniacat0
Treatment
0.4%e0
Outcome
branch and tree yieldse0
Direction
did not reducee0
Comparator
control trees hand-thinned at the normal timee0

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

Prunus armeniaca
Prunus armeniaca · TaxonFir0002 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“0.4% and 0.5% ATS reduced hand-thinning time by at least one-third, increased fruit size by about 20%, and did not reduce branch and tree yields compared to control trees hand-thinned at the normal time”

✓ located verbatim in the source · abstract, characters 352–554 · show in text ↑
t0

“apricot”

✓ located after whitespace/quote normalisation · title, characters 45–52 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

0.5% ATS did not reduce branch or tree yields versus normally hand-thinned controls.

Taxon
apricotPrunus armeniacat0
Treatment
0.5% ATSe0
Outcome
branch and tree yieldse0
Direction
did not reducee0
Comparator
control trees hand-thinned at the normal timee0

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

Prunus armeniaca
Prunus armeniaca · TaxonFir0002 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“0.4% and 0.5% ATS reduced hand-thinning time by at least one-third, increased fruit size by about 20%, and did not reduce branch and tree yields compared to control trees hand-thinned at the normal time”

✓ located verbatim in the source · abstract, characters 352–554 · show in text ↑
t0

“apricot”

✓ located after whitespace/quote normalisation · title, characters 45–52 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Airblast sprays were effective, with wetting critical to success.

Taxon
apricotPrunus armeniacat0
Treatment
Airblast sprayse0
Outcome
proved effectivee0
Qualifier
amount of wetting appears to be very criticale0

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

Prunus armeniaca
Prunus armeniaca · TaxonFir0002 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Airblast sprays also proved effective but the amount of wetting appears to be very critical to success”

✓ located verbatim in the source · abstract, characters 556–658 · show in text ↑
t0

“apricot”

✓ located after whitespace/quote normalisation · title, characters 45–52 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

In mature plantations, 1500 to 1800 L/ha of 3% ATS gave satisfactory results.

Taxon
apricotPrunus armeniacat0
Treatment
1500 to 1800 L/ha of 3% ATSe0
Outcome
satisfactory resultse0
Qualifier
mature plantationse0

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

Prunus armeniaca
Prunus armeniaca · TaxonFir0002 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“With mature plantations, 1500 to 1800 L/ha of 3% ATS gave satisfactory results”

✓ located verbatim in the source · abstract, characters 660–738 · show in text ↑
t0

“apricot”

✓ located after whitespace/quote normalisation · title, characters 45–52 · show in text ↑

ammonium thiosulfate · yield · Prunus armeniaca (apricot)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 papers →

fertilization · yield · Prunus armeniaca (apricot)Positive and negative results

13 papers: 12 positive, 1 negative or no effect

11 papers in the same direction as this paper · 1 in the opposite direction

  1. no effect
  2. positive
  3. positive

9 papers more in this group

See all 13 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.