Abstract
Growers in British Columbia, Canada and the US Pacific Northwest use gibberellic acid (GA 3) to improve fruit quality of sweet cherries ( Prunus aviumL.). A single spray application of about three weeks before harvest has become the standard procedure. The objective of this trial was to determine if multiple applications of GA 3can further increase fruit firmness and size, and delay maturity of ‘Sweetheart’ sweet cherry, the second most important sweet cherry cultivar in British Columbia. Yield was not affected by a single application of 20 or 30 ppm or two or three weekly applications of 10 ppm GA 3in any of the three years of the trial. Fruit treated with GA 3were significantly firmer than fruit not treated; however, there were no differences in fruit firmness amongst the single or multiple GA 3treatments. Titratable acidity of GA 3-treated fruit was significantly higher than that of untreated fruit. There were no differences in titratable acidity within the GA 3treated fruit. Fruit treated with GA 3were significantly larger than untreated fruit and the fruit treated with 20 ppm GA 3were larger than the fruit treated with 30 ppm GA 3(single applications). In summary, GA 3-treated fruit could be harvested later and were larger and firmer than untreated fruit. There was no benefit to multiple applications of GA 3relative to a single application.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc. 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 9
Claim · model-written summary
GA3 treatments did not affect yield across three years.
- Taxon
- sweet cherry
Prunus aviumt0 - Material
- Sweetheartt0
- Treatment
- a single application of 20 or 30 ppm or two or three weekly applications of 10 ppm GA 3e0
- Outcome
- Yielde0
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yield was not affected by a single application of 20 or 30 ppm or two or three weekly applications of 10 ppm GA 3in any of the three years of the trial.”
t0“‘Sweetheart’ SweetCherry”
Claim · model-written summary
GA3-treated fruit were firmer than untreated fruit.
- Taxon
- SweetCherryPrunus aviumt0
- Material
- Sweetheartt0
- Treatment
- GA 3e0
- Outcome
- Fruite0
- Direction
- firmere0
- Comparator
- fruit not treatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fruit treated with GA 3were significantly firmer than fruit not treated”
t0“‘Sweetheart’ SweetCherry”
Claim · model-written summary
Fruit firmness did not differ among GA3 schedules.
- Taxon
- SweetCherryPrunus aviumt0
- Treatment
- multiple GA 3treatmentse0
- Outcome
- fruit firmnesse0
- Direction
- no differencese0
- Comparator
- singlee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there were no differences in fruit firmness amongst the single or multiple GA 3treatments”
t0“‘Sweetheart’ SweetCherry”
Claim · model-written summary
GA3-treated fruit had higher titratable acidity than untreated fruit.
- Taxon
- SweetCherryPrunus aviumt0
- Treatment
- GA 3-treatede0
- Outcome
- Titratable aciditye0
- Direction
- highere0
- Comparator
- untreated fruite0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Titratable acidity of GA 3-treated fruit was significantly higher than that of untreated fruit.”
t0“‘Sweetheart’ SweetCherry”
Claim · model-written summary
Titratable acidity did not differ among GA3-treated fruit.
- Taxon
- SweetCherryPrunus aviumt0
- Treatment
- GA 3treatede0
- Outcome
- titratable aciditye0
- Direction
- no differencese0
- Comparator
- GA 3treated fruite0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There were no differences in titratable acidity within the GA 3treated fruit.”
t0“‘Sweetheart’ SweetCherry”
Claim · model-written summary
GA3-treated fruit were larger than untreated fruit.
- Taxon
- SweetCherryPrunus aviumt0
- Treatment
- GA 3e0
- Outcome
- Fruite0
- Direction
- largere0
- Comparator
- untreated fruite0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fruit treated with GA 3were significantly larger than untreated fruit”
t0“‘Sweetheart’ SweetCherry”
Claim · model-written summary
Fruit given 20 ppm GA3 were larger than fruit given 30 ppm.
- Taxon
- SweetCherryPrunus aviumt0
- Treatment
- 20 ppm GA 3e0
- Outcome
- fruite0
- Direction
- largere0
- Comparator
- 30 ppm GA 3e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the fruit treated with 20 ppm GA 3were larger than the fruit treated with 30 ppm GA 3(single applications)”
t0“‘Sweetheart’ SweetCherry”
Claim · model-written summary
GA3-treated fruit could be harvested later than untreated fruit.
- Taxon
- SweetCherryPrunus aviumt0
- Treatment
- GA 3-treatede0
- Outcome
- harvestede0
- Direction
- latere0
- Comparator
- untreated fruite0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“GA 3-treated fruit could be harvested later and were larger and firmer than untreated fruit.”
t0“‘Sweetheart’ SweetCherry”
Claim · model-written summary
Multiple GA3 applications offered no benefit over one application.
- Taxon
- SweetCherryPrunus aviumt0
- Outcome
- no benefit to multiple applications of GA 3e0
- Comparator
- a single applicatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was no benefit to multiple applications of GA 3relative to a single application.”
t0“‘Sweetheart’ SweetCherry”
The same questions in other papers
Gibberellic acid · quality: sugar starch · Prunus avium (sweet cherry)Results differ
2 papers in the same direction as this paper · 2 reporting no difference from an alternative
- positive
- positive
- no effect
1 paper more in this group
See all 5 papers →Gibberellic acid · quality: postharvest · Prunus avium (sweet cherry)Positive and negative results
10 reporting no difference from an alternative
- positive
- positive
- positive
7 papers more in this group
See all 11 papers →Gibberellic acid · yield · Prunus avium (sweet cherry)Positive and negative results
1 paper in the same direction as this paper · 11 in the opposite direction
- positive
- positive
- negative
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.