The authors conclude that CPPU and GA3 application on grapes improves raisin quality.

Gibberellic acid · quality: general · VitisResults differ

8 papers in the same direction as this claim · 3 in the opposite direction

1. no effect
   Gibberellic acid treatment did not affect juice quality at either location.

   SOME CLUSTER THINNING AND GIBBERELLIC ACID EFFECTS ON JUICE AND WINE QUALITY OF DE CHAUNAC GRAPES · 1977

   Opposite direction

2. no effect
   GA application had no effect on the quality of the berries.

   Effect of Gibberellin on 'Golden Queen' Grape, AVinifera-LabruscaHybrid · 1968

   Opposite direction

3. no effect
   GA3 dose and application stage had no significant effect on berry quality attributes.

   Effect of gibberellic acid application on berry yield and quality of grapevine cv. Cabernet Sauvignon · 2025

   Opposite direction

4. positive
   Treatments with 40 mg/L GA led to higher fruity and labrusca flavor.

   Gibberellic Acid and Basal Leaf Removal: Implications for Fruit Maturity, Vestigial Seed Development, and Sensory Attributes of Sovereign Coronation Table Grapes · 2006

   Same direction

5. positive
   GA3 alone improved yield and berry quality.

   Cluster and Berry Characteristics of Grapevine (Vitis vinifera L.) as Influenced by Thinning Agents and Gibberrelic Acid Applications · 2020

   Same direction

6. positive
   Exogenous gibberellin significantly improves grape berry quality.

   Gibberellin Mediates VvmiR397a‐VvLAC4 via VvSLR1‐VvWRKY26 Cascade Signal to Repress the Seed‐Stone Development During GA‐Induced Grape Parthenocarpy · 2025

   Same direction

7. positive
   GA3 at 30 mgL -1 with KNO3 at 1.5% had the greatest positive effect on berry and cluster quality and quantity.

   Interaction of gibberellic acid, potassium nitrate and role of pollen sources on physicobiochemical traits of grape · 2025

   Same direction

8. positive
   The GA3 and CPPU treatment of 25 mg/kg GA3 plus 3 mg/kg CPPU at full bloom, followed by 50 mg/kg GA3, gave better comprehensive fruit quality in Taian area.

   Effect of Growth Regulators on Fruit Quality of Grape Variety “Summer Black” · 2014

   Same direction

3 papers more in this group

forchlorfenuron · quality: general · VitisResults agree

3 papers in the same direction as this claim

1. positive
   Single sprays of calcium nitrate, potassium sulfate, CPPU, and each Moringa extract concentration improved grapevine quality and total yield.

   Effect of Foliar Spray of Sitofex, Moringa Leaves Extract and Some Nutrients on Productivity and Fruit Quality of “Thompson seedless” Grapevine · 2020

   Same direction

2. positive
   The GA3 and CPPU treatment of 25 mg/kg GA3 plus 3 mg/kg CPPU at full bloom, followed by 50 mg/kg GA3, gave better comprehensive fruit quality in Taian area.

   Effect of Growth Regulators on Fruit Quality of Grape Variety “Summer Black” · 2014

   Same direction

3. positive
   The specified pre- and postflowering dips improved fruit berry weight, cluster weight and quality.

   Effects of Plant Growth Regulators Influenced on Centennial Seedless Fruit Quality · 2012

   Same direction