6-Benzylaminopurine 2% Liquid (6-BA) Full Application Guide

What Is 6-Benzylaminopurine 2% Liquid

6-Benzylaminopurine 2% Liquid(6-BA) is a water-soluble cytokinin plant growth regulator. It is widely used to promote cell division, stimulate lateral buds, improve fruit setting, delay leaf aging, and enhance stress resistance in agricultural and horticultural plants. As a ready-to-use liquid formulation, it is easy to dilute and apply, suitable for both commercial farms and horticultural nurseries.
6-Benzylaminopurine 2% Liquid application guide
6-Benzylaminopurine 2% Liquid application guide

Key Benefits of 6-BA 2% Liquid

  • Promotes cell division and shoot growth, helping plants grow robustly
  • Stimulates lateral bud formation and branching, increasing plant yield and fullness
  • Increases flower quantity and fruit setting rate, reducing fruit drop
  • Delays leaf senescence and keeps plants green longer, extending the photosynthesis period
  • Enhances drought, salt and temperature stress tolerance, improving plant survival rate
  • Improves propagation efficiency in tissue culture, shortening the breeding cycle
  • Easy-to-use liquid formula, simple to dilute and apply without complicated operations

Standard Dilution & Application Methods

1. Foliar Spray (Most Common)

Dilution ratio: 1:1000 – 1:1500 (1 ml 6-BA 2% Liquid per 1–1.5 L clean water); Spray evenly on leaves, buds and young shoots, ensuring full coverage without dripping; Apply 2–3 times at 7–10 day intervals for best results.

2. Soaking & Drenching

Dilution: 1:2000 – 1:3000 (1 ml 6-BA 2% Liquid per 2–3 L water); Soak seedling roots or drench the root zone during transplanting to promote root recovery and new root growth.

3. Tissue Culture

Dilute according to the culture medium formula (usually 0.1–0.5 mg/L); Add to the culture medium to promote bud differentiation and cluster bud formation, improving tissue culture propagation efficiency.

Dosage for Different Crops

  • Tomatoes, Peppers: 1:1200 dilution, spray at budding & flowering stages (2 times, 7 days apart)
  • Strawberries: 1:1500 dilution, spray once before flowering to increase flower quantity and fruit setting rate
  • Grapes, Apples, Citrus: 1:1000 dilution, spray at bud break to promote branching and flower bud differentiation
  • Leafy Vegetables (Lettuce, Spinach): 1:1500 dilution, spray at seedling stage to promote seedling growth and increase leaf thickness
  • Flowers & Ornamentals: 1:1200 dilution, spray during the seedling stage to promote branching and flowering
  • Tissue Culture Plants: Use according to the culture medium formula, adjust concentration based on plant variety

Application Tips & Best Timing

  • Best application temperature: 18–28°C, avoid application at temperatures above 30°C or below 15°C
  • Apply in early morning (6–8 AM) or late afternoon (17–19 PM) to avoid strong sunlight, which may decompose the active ingredients
  • Do not apply on rainy days; if it rains within 6 hours after application, re-spray after the rain stops
  • Avoid application during extreme heat, cold or strong wind, which will affect the absorption effect
  • Use clean, neutral water (pH 6.0–7.0) for dilution to ensure the stability of the active ingredients

Mixing & Compatibility Rules

✅ Can mix with:
  • Acidic foliar fertilizers (pH 5.5–6.5)
  • Neutral insecticides and fungicides with low phytotoxicity
  • Other mild plant growth regulators (NAA, IBA, GA3)
❌ Do NOT mix with:
  • Strong alkaline pesticides (pH above 7.5), which will decompose the active ingredients of 6-BA
  • Copper-based fungicides, which may cause phytotoxicity
  • Highly concentrated emulsifiable concentrates (ECs), which may affect the stability of the liquid

Safety & Handling

  • Wear gloves, goggles and protective clothing during operation to avoid skin and eye contact
  • Avoid inhalation of the liquid mist; if accidentally inhaled, move to a well-ventilated area immediately
  • Do not eat, drink or smoke during operation; wash hands thoroughly with soap after operation
  • Keep the product away from children, food and feed to avoid accidental ingestion
  • Follow local agricultural guidelines and regulations when using and disposing of the product

Storage Guidelines

  • Store in a cool, dry, ventilated area with a temperature of 5–25°C
  • Keep the container sealed and away from light to avoid direct sunlight and high temperature
  • Do not store together with alkaline substances, food, feed or other chemicals
  • Shelf life: 2 years under proper storage conditions; do not use expired products

Frequently Asked Questions

Q: How fast does 6-BA 2% Liquid work?
A: Effects can be observed in 3–7 days after application; obvious effects on bud growth and leaf greening can be seen in 7–10 days.
Q: Can it be used on all crops?
A: It is safe for most vegetables, fruits, flowers and economic crops; it is recommended to test a small area before large-scale application for sensitive crops.
Q: Is it suitable for hydroponics?
A: Yes, it can be added to the hydroponic nutrient solution at a low concentration (1:3000–1:4000) to promote root and shoot growth.
Q: What should I do if phytotoxicity occurs?
A: Stop using the product immediately; spray clean water to dilute the liquid on the plant surface; apply foliar fertilizer to help the plant recover.
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