Abstract
A field trial was conducted during 2013-14 and 2014-15 fruiting seasons in growers' vineyards around Nashik, Maharashtra, India to improve efficacy of GA3 sprays in berrythinning. As smaller clusters have fewer berries, cluster compactness derived at by number of berries per unit length (cm) of rachis, and, berry-diameter were considered as a measure of berry-thinning. As GA3 effect in berry-thinning is stage-specific, canes uniformly thick in a vine only were retained to achieve uniformity in flowering, by inducing uniform bud-break. Cane regulation did not result in uniformity in bud-break or flowering. Blanket spray of GA3 thrice @ 20g a.i./ha, each coupled with either removal of non-uniform canes or retention of all the canes could effectively reduce cluster compactness by reducing number of berries per cluster, without increasing total length of the rachis/cluster or berry diameter. Vine yield and quality in terms of total soluble solids and acid content were not affected by the treatments. Considering cluster-compactness, yield and ease of cultural operations, retention of all the canes in a vine, coupled with three blanket sprays each of GA3 @ 20g a.i/ha, on alternate days commencing from initiation of the bloom, is recommended for 'Thompson Seedless'.
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 9
Claim · model-written summary
Cane regulation did not make bud-break uniform.
Not reportedComparator
Verbatim
e0“Cane regulation did not result in uniformity in bud-break or flowering”
t0“Effect of Cane Regulation and GA3 Spray on Berry Thinning in 'Thompson Seedless' Grape (Vitis vinifera L.)”
Claim · model-written summary
Cane regulation did not make flowering uniform.
Not reportedComparator
Verbatim
e0“Cane regulation did not result in uniformity in bud-break or flowering”
t0“Effect of Cane Regulation and GA3 Spray on Berry Thinning in 'Thompson Seedless' Grape (Vitis vinifera L.)”
Claim · model-written summary
Three GA3 sprays reduced cluster compactness with non-uniform cane removal.
- Taxon
- Grapet0
- Treatment
- Blanket spray of GA3 thrice @ 20g a.i./hae0
- Outcome
- cluster compactnesse0
- Direction
- reducee0
- Qualifier
- removal of non-uniform canese0
Not reportedComparator
Verbatim
e0“Blanket spray of GA3 thrice @ 20g a.i./ha, each coupled with either removal of non-uniform canes or retention of all the canes could effectively reduce cluster compactness”
t0“Effect of Cane Regulation and GA3 Spray on Berry Thinning in 'Thompson Seedless' Grape (Vitis vinifera L.)”
Claim · model-written summary
Three GA3 sprays reduced cluster compactness with all canes retained.
- Taxon
- Grapet0
- Treatment
- Blanket spray of GA3 thrice @ 20g a.i./hae0
- Outcome
- cluster compactnesse0
- Direction
- reducee0
- Qualifier
- retention of all the canese0
Not reportedComparator
Verbatim
e0“Blanket spray of GA3 thrice @ 20g a.i./ha, each coupled with either removal of non-uniform canes or retention of all the canes could effectively reduce cluster compactness”
t0“Effect of Cane Regulation and GA3 Spray on Berry Thinning in 'Thompson Seedless' Grape (Vitis vinifera L.)”
Claim · model-written summary
The GA3 treatments reduced berries per cluster.
Not reportedComparator
Verbatim
e0“reducing number of berries per cluster”
t0“Effect of Cane Regulation and GA3 Spray on Berry Thinning in 'Thompson Seedless' Grape (Vitis vinifera L.)”
Claim · model-written summary
The treatments did not increase rachis length or berry diameter.
- Taxon
- Grapet0
- Treatment
- GA3 Sprayt0
- Outcome
- total length of the rachis/cluster or berry diametere0
- Direction
- without increasinge0
Not reportedComparator
Verbatim
e0“without increasing total length of the rachis/cluster or berry diameter”
t0“Effect of Cane Regulation and GA3 Spray on Berry Thinning in 'Thompson Seedless' Grape (Vitis vinifera L.)”
Claim · model-written summary
Treatments did not affect vine yield.
Not reportedComparator
Verbatim
e0“Vine yield and quality in terms of total soluble solids and acid content were not affected by the treatments”
t0“Effect of Cane Regulation and GA3 Spray on Berry Thinning in 'Thompson Seedless' Grape (Vitis vinifera L.)”
Claim · model-written summary
Treatments did not affect soluble solids or acid content.
- Taxon
- Grapet0
- Treatment
- treatmentse0
- Outcome
- total soluble solids and acid contente0
- Direction
- not affectede0
Not reportedComparator
Verbatim
e0“Vine yield and quality in terms of total soluble solids and acid content were not affected by the treatments”
t0“Effect of Cane Regulation and GA3 Spray on Berry Thinning in 'Thompson Seedless' Grape (Vitis vinifera L.)”
Claim · model-written summary
The authors recommend retaining all canes with three GA3 sprays on alternate days from bloom initiation.
Verbatim
e0“retention of all the canes in a vine, coupled with three blanket sprays each of GA3 @ 20g a.i/ha, on alternate days commencing from initiation of the bloom, is recommended for 'Thompson Seedless'”
The same questions in other papers
Gibberellic acid · molecular: metabolites · VitisResults differ
22 papers in the same direction as this paper · 7 in the opposite direction
- negative
- no effect
- no effect
26 papers more in this group
See all 30 papers →Gibberellic acid · growth · VitisResults differ
7 papers in the same direction as this paper · 26 in the opposite direction
- positive
- positive
- positive
30 papers more in this group
See all 34 papers →application · growth · VitisPositive and negative results
8 papers in the same direction as this paper · 37 in the opposite direction
- positive
- positive
- positive
42 papers more in this group
See all 46 papers →application · molecular: metabolites · VitisPositive and negative results
45 papers in the same direction as this paper · 5 in the opposite direction
- no effect
- no effect
- no effect
47 papers more in this group
See all 51 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.