Abstract
ABSTRACT Self-fertile cultivars of sweet cherry ( Prunus avium ) produce heavy crop load that is often associated with small and poor-quality fruits. Therefore, a crop load-management strategy is required to improve the quality of the fruit. In this study, the effect of blossom thinners on fruit set, yield and quality of the fruits was evaluated. Three types of blossom thinners were used at three different concentrations viz., ammonium thiosulphate (ATS) (1, 1.5 and 2%), naphthaleneacetic acid (NAA) (20, 40 and 60 ppm) and corn oil emulsion (1, 2 and 3%). These were sprayed at 80% of the bloom stage. The vegetative, flowering, fruit set and yield parameters were observed and recorded. Fruit quality was evaluated by measuring the physical and chemical characteristics of the fruits at the harvest stage. Negative correlation was found between fruit set and quality of fruit. The reduction in the crop load was associated with enhanced vegetative growth, including higher leaf:fruit ratio, higher supply and availability of photosynthates to the remaining fruitlets and reduced fruit firmness and titratable acidity. Fruit size, weight, volume, hue value, chroma value, soluble solid content (SSC), total sugars, SSC/acid ratio, anthocyanin and ascorbic acid content were enhanced as a result of thinning. The foliar spray of ATS at 2% and NAA at 60 ppm, at 80% bloom proved to be the most effective in reducing crop load and enhancing the fruit quality.
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Claims 11
Claim · model-written summary
Negative correlation was found between fruit set and quality of fruit in sweet cherry.
- Taxon
- sweet cherry
Prunus aviumt0 - Material
- Sweet Heartt0
- Organ / stage
- fruite0
- Outcome
- quality of fruite0
- Direction
- Negativee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sweet cherry cv. ‘Sweet Heart’”
e0“Negative correlation was found between fruit set and quality of fruit”
Claim · model-written summary
The reduction in crop load was associated with enhanced vegetative growth in sweet cherry.
- Taxon
- sweet cherryPrunus aviumt0
- Material
- Sweet Heartt0
- Treatment
- The reduction in the crop loade0
- Outcome
- vegetative growthe0
- Direction
- enhancede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sweet cherry cv. ‘Sweet Heart’”
e0“The reduction in the crop load was associated with enhanced vegetative growth, including higher leaf:fruit ratio, higher supply and availability of photosynthates to the remaining fruitlets”
Claim · model-written summary
Reduced crop load was associated with a higher leaf:fruit ratio in sweet cherry.
- Taxon
- sweet cherryPrunus aviumt0
- Material
- Sweet Heartt0
- Treatment
- The reduction in the crop loade0
- Outcome
- leaf:fruit ratioe0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sweet cherry cv. ‘Sweet Heart’”
e0“The reduction in the crop load was associated with enhanced vegetative growth, including higher leaf:fruit ratio, higher supply and availability of photosynthates to the remaining fruitlets”
Claim · model-written summary
Reduced crop load was associated with a higher supply and availability of photosynthates to the remaining fruitlets in sweet cherry.
- Taxon
- sweet cherryPrunus aviumt0
- Material
- Sweet Heartt0
- Treatment
- The reduction in the crop loade0
- Outcome
- supply and availability of photosynthates to the remaining fruitletse0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sweet cherry cv. ‘Sweet Heart’”
e0“The reduction in the crop load was associated with enhanced vegetative growth, including higher leaf:fruit ratio, higher supply and availability of photosynthates to the remaining fruitlets”
Claim · model-written summary
Reduced crop load was associated with reduced fruit firmness and titratable acidity in sweet cherry.
- Taxon
- sweet cherryPrunus aviumt0
- Material
- Sweet Heartt0
- Treatment
- The reduction in the crop loade0
- Outcome
- fruit firmness and titratable aciditye1
- Direction
- reducede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sweet cherry cv. ‘Sweet Heart’”
e0“The reduction in the crop load was associated with enhanced vegetative growth, including higher leaf:fruit ratio, higher supply and availability of photosynthates to the remaining fruitlets”
e1“reduced fruit firmness and titratable acidity”
Claim · model-written summary
The foliar spray of ATS at 2% at 80% bloom was the most effective treatment in reducing crop load in sweet cherry.
- Taxon
- sweet cherryPrunus aviumt0
- Material
- Sweet Heartt0
- Treatment
- foliar spray of ATS at 2%e0
- Outcome
- reducing crop loade0
- Direction
- most effectivee0
- Qualifier
- enhancing the fruit qualitye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sweet cherry cv. ‘Sweet Heart’”
e0“The foliar spray of ATS at 2% and NAA at 60 ppm, at 80% bloom proved to be the most effective in reducing crop load and enhancing the fruit quality”
Claim · model-written summary
The foliar spray of NAA at 60 ppm at 80% bloom was the most effective treatment in reducing crop load in sweet cherry.
- Taxon
- sweet cherryPrunus aviumt0
- Material
- Sweet Heartt0
- Treatment
- NAA at 60 ppme0
- Outcome
- reducing crop loade0
- Direction
- most effectivee0
- Qualifier
- enhancing the fruit qualitye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sweet cherry cv. ‘Sweet Heart’”
e0“The foliar spray of ATS at 2% and NAA at 60 ppm, at 80% bloom proved to be the most effective in reducing crop load and enhancing the fruit quality”
Claim · model-written summary
Thinning enhanced fruit size, weight and volume in sweet cherry.
- Taxon
- sweet cherryPrunus aviumt0
- Material
- Sweet Heartt0
- Treatment
- thinninge0
- Outcome
- Fruit size, weight, volumee0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sweet cherry cv. ‘Sweet Heart’”
e0“Fruit size, weight, volume, hue value, chroma value, soluble solid content (SSC), total sugars, SSC/acid ratio, anthocyanin and ascorbic acid content were enhanced as a result of thinning”
Claim · model-written summary
Thinning enhanced hue value and chroma value of sweet cherry fruit.
- Taxon
- sweet cherryPrunus aviumt0
- Material
- Sweet Heartt0
- Treatment
- thinninge0
- Outcome
- hue value, chroma valuee0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sweet cherry cv. ‘Sweet Heart’”
e0“Fruit size, weight, volume, hue value, chroma value, soluble solid content (SSC), total sugars, SSC/acid ratio, anthocyanin and ascorbic acid content were enhanced as a result of thinning”
Claim · model-written summary
Thinning enhanced soluble solid content, total sugars and SSC/acid ratio of sweet cherry fruit.
- Taxon
- sweet cherryPrunus aviumt0
- Material
- Sweet Heartt0
- Treatment
- thinninge0
- Outcome
- soluble solid content (SSC), total sugars, SSC/acid ratioe0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sweet cherry cv. ‘Sweet Heart’”
e0“Fruit size, weight, volume, hue value, chroma value, soluble solid content (SSC), total sugars, SSC/acid ratio, anthocyanin and ascorbic acid content were enhanced as a result of thinning”
Claim · model-written summary
Thinning enhanced anthocyanin and ascorbic acid content of sweet cherry fruit.
- Taxon
- sweet cherryPrunus aviumt0
- Material
- Sweet Heartt0
- Treatment
- thinninge0
- Outcome
- anthocyanin and ascorbic acid contente0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sweet cherry cv. ‘Sweet Heart’”
e0“Fruit size, weight, volume, hue value, chroma value, soluble solid content (SSC), total sugars, SSC/acid ratio, anthocyanin and ascorbic acid content were enhanced as a result of thinning”
The same questions in other papers
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
- negative
17 papers more in this group
See all 21 papers →pruning · quality: postharvest · Prunus avium (sweet cherry)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
pruning · molecular: metabolites · Prunus avium (sweet cherry)Results agree
2 papers in the same direction as this paper
- positive
- positive
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.