Role of Potassium in Grapes Quality
Potassium is a key nutrient for grapevines, essential for fruit quality, yield improvement, and disease resistance.
Main Functions of Potassium
- Regulates osmotic pressure and water balance.
- Activates enzymes in photosynthesis and respiration.
- Controls stomatal opening and closing.
- Supports protein synthesis and carbohydrate metabolism.
- Enhances disease and stress resistance.
- Improves yield and fruit quality.
Note: Potassium deficiency causes leaf yellowing, weak growth, and lower yield.
Potassium Effects on Quality
Potassium improves grape color, sugar content, vitamin C, size, storability, and reduces physiological disorders.
Management Issues
Deficiency reduces productivity, while excess competes with calcium and magnesium absorption.
Related Product
Check out GREEN CITROTASH, an eco-friendly potassium citrate fertilizer.

FAQ
- Does potassium improve grape taste?
- Yes, it enhances sugar levels and flavor.
- What are signs of potassium deficiency?
- Leaf margin yellowing, stunted growth, and reduced yield.