Abstract
The commercial adoption of the relatively new rootstock `Gisela 5' ( Prunus cerasus L. × P. canescens L.) has been limited in the United States sweet cherry ( P. avium L.) industry despite its ability to induce precocity and productivity and reduce scion vigor compared to the standard Mazzard ( P. avium ). This is due in large part to inadequate crop load management that has led to high yields of small fruit. This paper reports on sweet cherry chemical blossom thinning trials conducted in 2002 and 2003. Two percent ammonium thiosulphate (ATS), 3% to 4% vegetable oil emulsion (VOE), and tank mixes of 2% fish oil + 2.5% lime sulphur (FOLS) were applied to entire 8- and 9-year-old `Bing'/`Gisela 5' sweet cherry canopies at about 10% full bloom (FB) and again at about 90% FB. In both years, ATS and FOLS reduced fruit set by 66% to 33% compared to the control (C). VOE reduced fruit set by 50% compared to C in 2002 but had no effect in 2003. In 2002, fruit yield was 30% to 60% lower from thinned trees. In 2003, fruit yield was unaffected by thinning treatment. In 2002, ATS and FOLS improved fruit soluble solids but had no effect in 2003. VOE did not affect fruit soluble solids in 2002 and reduced fruit soluble solids by 12%, compared to C, in 2003. In 2002, each thinning treatment nearly eliminated the yield of the small fruit (≤21.5-mm diameter) and increased yield of large fruit (≥26.5 mm) by more than 400%, compared to C. In 2003, ATS and FOLS did not affect yield of small fruit but increased the yield of large fruit by 60%. In 2003, VOE-treated trees yielded 4.3 kg of small fruit per tree compared to about 0.15 kg from C, suggesting a phytotoxic response to VOE beyond that which may effect thinning. Compared to C, ATS and FOLS consistently reduced fruit set and improved fruit quality. We conclude that commercially acceptable yields of excellent quality `Bing' sweet cherries can be grown on size-controlling and precocious rootstocks.
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Claims 14
Claim · model-written summary
ATS and FOLS reduced sweet cherry fruit set by 66% to 33% compared to the control in both years.
- Taxon
- sweet cherry
Prunus aviume0 - Treatment
- ATS and FOLSe1
- Outcome
- fruit sete1
- Direction
- reducede1
- Value
- 66% to 33%e1
- Qualifier
- In both yearse1
- Comparator
- control (C)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This paper reports on sweet cherry chemical blossom thinning trials conducted in 2002 and 2003”
e1“In both years, ATS and FOLS reduced fruit set by 66% to 33% compared to the control (C)”
Claim · model-written summary
VOE reduced sweet cherry fruit set by 50% compared to the control in 2002.
- Taxon
- sweet cherryPrunus aviume0
- Treatment
- VOEe2
- Outcome
- fruit sete2
- Direction
- reducede2
- Value
- 50%e2
- Qualifier
- in 2002e2
- Comparator
- Ce2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This paper reports on sweet cherry chemical blossom thinning trials conducted in 2002 and 2003”
e2“VOE reduced fruit set by 50% compared to C in 2002 but had no effect in 2003”
Claim · model-written summary
VOE had no effect on sweet cherry fruit set in 2003.
- Taxon
- sweet cherryPrunus aviume0
- Treatment
- VOEe2
- Outcome
- fruit sete2
- Direction
- no effecte2
- Qualifier
- in 2003e2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This paper reports on sweet cherry chemical blossom thinning trials conducted in 2002 and 2003”
e2“VOE reduced fruit set by 50% compared to C in 2002 but had no effect in 2003”
Claim · model-written summary
Thinned sweet cherry trees had 30% to 60% lower fruit yield in 2002.
- Taxon
- sweet cherryPrunus aviume0
- Treatment
- thinned treese3
- Outcome
- fruit yielde3
- Direction
- lowere3
- Value
- 30% to 60%e3
- Qualifier
- In 2002e3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This paper reports on sweet cherry chemical blossom thinning trials conducted in 2002 and 2003”
e3“In 2002, fruit yield was 30% to 60% lower from thinned trees”
Claim · model-written summary
Thinning did not affect sweet cherry fruit yield in 2003.
- Taxon
- sweet cherryPrunus aviume0
- Treatment
- thinning treatmente4
- Outcome
- fruit yielde4
- Direction
- unaffectede4
- Qualifier
- In 2003e4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This paper reports on sweet cherry chemical blossom thinning trials conducted in 2002 and 2003”
e4“In 2003, fruit yield was unaffected by thinning treatment”
Claim · model-written summary
ATS and FOLS improved sweet cherry fruit soluble solids in 2002.
- Taxon
- sweet cherryPrunus aviume0
- Treatment
- ATS and FOLSe5
- Outcome
- fruit soluble solidse5
- Direction
- improvede5
- Qualifier
- In 2002e5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This paper reports on sweet cherry chemical blossom thinning trials conducted in 2002 and 2003”
e5“In 2002, ATS and FOLS improved fruit soluble solids but had no effect in 2003”
Claim · model-written summary
ATS and FOLS had no effect on sweet cherry fruit soluble solids in 2003.
- Taxon
- sweet cherryPrunus aviume0
- Treatment
- ATS and FOLSe5
- Outcome
- fruit soluble solidse5
- Direction
- no effecte5
- Qualifier
- in 2003e5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This paper reports on sweet cherry chemical blossom thinning trials conducted in 2002 and 2003”
e5“In 2002, ATS and FOLS improved fruit soluble solids but had no effect in 2003”
Claim · model-written summary
VOE did not affect sweet cherry fruit soluble solids in 2002.
- Taxon
- sweet cherryPrunus aviume0
- Treatment
- VOEe6
- Outcome
- fruit soluble solidse6
- Direction
- did not affecte6
- Qualifier
- in 2002e6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This paper reports on sweet cherry chemical blossom thinning trials conducted in 2002 and 2003”
e6“VOE did not affect fruit soluble solids in 2002 and reduced fruit soluble solids by 12%, compared to C, in 2003”
Claim · model-written summary
VOE reduced sweet cherry fruit soluble solids by 12% compared to the control in 2003.
- Taxon
- sweet cherryPrunus aviume0
- Treatment
- VOEe6
- Outcome
- fruit soluble solidse6
- Direction
- reducede6
- Value
- 12%e6
- Qualifier
- in 2003e6
- Comparator
- Ce6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This paper reports on sweet cherry chemical blossom thinning trials conducted in 2002 and 2003”
e6“VOE did not affect fruit soluble solids in 2002 and reduced fruit soluble solids by 12%, compared to C, in 2003”
Claim · model-written summary
In 2002, each thinning treatment nearly eliminated the yield of small sweet cherry fruit compared to the control.
- Taxon
- sweet cherryPrunus aviume0
- Treatment
- each thinning treatmente7
- Outcome
- yield of the small fruite7
- Direction
- nearly eliminatede7
- Qualifier
- In 2002e7
- Comparator
- Ce6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This paper reports on sweet cherry chemical blossom thinning trials conducted in 2002 and 2003”
e7“In 2002, each thinning treatment nearly eliminated the yield of the small fruit”
e6“by more than 400%, compared to C”
Claim · model-written summary
In 2002, each thinning treatment increased sweet cherry large-fruit yield by more than 400% compared to the control.
- Taxon
- sweet cherryPrunus aviume0
- Treatment
- each thinning treatmente7
- Outcome
- yield of large fruite5
- Direction
- increasede5
- Value
- more than 400%e6
- Qualifier
- In 2002e7
- Comparator
- Ce6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This paper reports on sweet cherry chemical blossom thinning trials conducted in 2002 and 2003”
e7“In 2002, each thinning treatment nearly eliminated the yield of the small fruit”
e5“increased yield of large fruit”
e6“by more than 400%, compared to C”
Claim · model-written summary
VOE-treated sweet cherry trees yielded 4.3 kg of small fruit per tree in 2003, compared with about 0.15 kg on the control.
- Taxon
- sweet cherryPrunus aviume0
- Treatment
- VOE-treated treese1
- Outcome
- small fruite1
- Direction
- higherinferrede1
- Value
- 4.3 kge1
- Qualifier
- about 0.15 kge1
- Comparator
- Ce1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This paper reports on sweet cherry chemical blossom thinning trials conducted in 2002 and 2003”
e1“In 2003, VOE-treated trees yielded 4.3 kg of small fruit per tree compared to about 0.15 kg from C”
Claim · model-written summary
ATS and FOLS did not affect sweet cherry small-fruit yield in 2003.
- Taxon
- sweet cherryPrunus aviume0
- Treatment
- ATS and FOLSe1
- Outcome
- yield of small fruite1
- Direction
- did not affecte1
- Qualifier
- In 2003e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This paper reports on sweet cherry chemical blossom thinning trials conducted in 2002 and 2003”
e1“In 2003, ATS and FOLS did not affect yield of small fruit but increased the yield of large fruit by 60%”
Claim · model-written summary
ATS and FOLS increased sweet cherry large-fruit yield by 60% in 2003.
- Taxon
- sweet cherryPrunus aviume0
- Treatment
- ATS and FOLSe1
- Outcome
- yield of large fruite1
- Direction
- increasede1
- Value
- 60%e1
- Qualifier
- In 2003e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This paper reports on sweet cherry chemical blossom thinning trials conducted in 2002 and 2003”
e1“In 2003, ATS and FOLS did not affect yield of small fruit but increased the yield of large fruit by 60%”
The same questions in other papers
ammonium thiosulfate · yield · Prunus avium (sweet cherry)Results differ
1 paper in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
pruning · yield · Prunus avium (sweet cherry)Results differ
13 papers in the same direction as this paper · 7 in the opposite direction
- no effect
- positive
- positive
17 papers more in this group
See all 21 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.