Enhancing Apple Fruit Size with Gibberellic Acid and Benzyladenine Application
05 March 2025, New Delhi: Fruit size is a crucial quality parameter in apple cultivation, directly influencing market value and consumer preference. One of the effective ways to enhance apple fruit size is through the application of plant growth regulators, specifically Gibberellic Acid (GA4+GA7) and Benzyladenine.
Optimizing Fruit Size with Growth Regulators
The application of Gibberellic Acid (GA4+GA7) 1.8% + Benzyladenine 1.8% at a concentration of 30-60 ppm has been found to significantly improve the length-to-diameter (L:D) ratio of apples. This treatment is most effective when applied at the 80-90% king flower bloom stage, a critical phase in fruit development.
How It Works
- Gibberellic Acid (GA4+GA7): Promotes cell elongation and division, leading to an increase in fruit size.
- Benzyladenine: Enhances fruit set and growth by stimulating cell proliferation.
Application Guidelines
- Ensure proper timing: Apply the solution when 80-90% of king flowers are in full bloom for optimal results.
- Use the recommended concentration: 30-60 ppm to achieve uniform fruit enlargement.
- Follow best practices: Spray evenly to cover developing fruit clusters without excessive runoff.
Expected Benefits
- Improved fruit size and shape, making apples more marketable.
- Enhanced uniformity in fruit development.
- Potential increase in yield due to better fruit retention.
By incorporating this scientifically backed method into apple orchard management, growers can enhance fruit quality, meet market demands, and achieve better profitability.
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