Abstract
The effects of girdling and gibberellic acid (GA) on berry weight, soluble solids concentration, and yield of Ruby Seedless and Thompson Seedless table grapes were determined. Treatments included trunk girdling and GA application (40 mg/L) to entire vines, shoots only, or clusters only at fruitset. Berry growth and development were monitored several times between fruitset and harvest. Girdling increased berry weight approximately 0.8 g for both cultivars. GA applied to entire vines or to clusters only significantly (p < 0.01) increased berry weight of Ruby Seedless vines by 0.26 and 0.56 g over the control. Girdling reduced the soluble solids concentration at harvest by 0.8°Brix. Soluble solids of GA vine-, shoot-, and cluster-sprayed fruit were equal to or above the control. Vine yields were significantly (p < 0.01) increased by girdling. The number of clusters on Ruby Seedless grapevines were reduced to 54 per vine the following spring on treatments that had GA sprayed on the shoots, as compared to 82 clusters per vine for the control. Results demonstrated that the berry weight of Ruby Seedless vines could be increased by girdling and GA treatments at fruitset.
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Claims 9
Claim · model-written summary
Girdling increased berry weight by about 0.8 g in both cultivars.
- Taxon
- Grapest0
- Material
- Ruby Seedless and Thompson Seedlesst0
- Treatment
- Girdlinge0
- Outcome
- berry weighte0
- Direction
- increasede0
- Value
- 0.8 ge0
Not reportedComparator
Verbatim
e0“Girdling increased berry weight approximately 0.8 g for both cultivars.”
t0“Ruby Seedless and Thompson Seedless Grapes”
Claim · model-written summary
GA applied to entire Ruby Seedless vines increased berry weight by 0.26 g over control.
Verbatim
e0“GA applied to entire vines or to clusters only significantly (p < 0.01) increased berry weight of Ruby Seedless vines by 0.26 and 0.56 g over the control.”
Claim · model-written summary
GA applied to Ruby Seedless clusters increased berry weight by 0.56 g over control.
Verbatim
e0“GA applied to entire vines or to clusters only significantly (p < 0.01) increased berry weight of Ruby Seedless vines by 0.26 and 0.56 g over the control.”
Claim · model-written summary
Girdling reduced soluble solids concentration at harvest by 0.8°Brix.
- Taxon
- Grapest0
- Treatment
- Girdlinge0
- Outcome
- soluble solids concentratione0
- Direction
- reducede0
- Value
- 0.8°Brixe0
- Qualifier
- at harveste0
Not reportedComparator
Verbatim
e0“Girdling reduced the soluble solids concentration at harvest by 0.8°Brix.”
t0“Ruby Seedless and Thompson Seedless Grapes”
Claim · model-written summary
GA sprayed on vines produced fruit soluble solids equal to or above control.
Verbatim
e0“Soluble solids of GA vine-, shoot-, and cluster-sprayed fruit were equal to or above the control.”
t0“Ruby Seedless and Thompson Seedless Grapes”
Claim · model-written summary
GA sprayed on shoots produced fruit soluble solids equal to or above control.
Verbatim
e0“Soluble solids of GA vine-, shoot-, and cluster-sprayed fruit were equal to or above the control.”
t0“Ruby Seedless and Thompson Seedless Grapes”
Claim · model-written summary
GA sprayed on clusters produced fruit soluble solids equal to or above control.
Verbatim
e0“Soluble solids of GA vine-, shoot-, and cluster-sprayed fruit were equal to or above the control.”
t0“Ruby Seedless and Thompson Seedless Grapes”
Claim · model-written summary
Girdling significantly increased vine yield.
Not reportedComparator
Verbatim
e0“Vine yields were significantly (p < 0.01) increased by girdling.”
t0“Ruby Seedless and Thompson Seedless Grapes”
Claim · model-written summary
GA spraying on Ruby Seedless shoots reduced following-spring clusters to 54 per vine versus 82 in control.
Verbatim
e0“The number of clusters on Ruby Seedless grapevines were reduced to 54 per vine the following spring on treatments that had GA sprayed on the shoots, as compared to 82 clusters per vine for the control.”
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