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1-Naphthaleneacetic Acid (NAA) is a widely used synthetic auxin plant growth regulator designed to promote root initiation, fruit set, and controlled fruit thinning.It is extensively applied in horticulture, fruit production, nurseries, and transplant operations to improve crop uniformity.
CAS Number:86-87-3
Ingredient Content:1-Naphthaleneacetic acid 4.5% SL ,2% SL ,1% SP
Product Appearance:White to light beige crystalline powder
Visit Volume:65
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+86-13153039501
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1-Naphthaleneacetic Acid (NAA) is a widely used synthetic auxin plant growth regulator designed to promote root initiation, fruit set, and controlled fruit thinning.It is extensively applied in horticulture, fruit production, nurseries, and transplant operations to improve crop uniformity, increase yield, and enhance overall plant vigor.NAA is trusted by growers worldwide for its stable performance, flexible application methods, and proven field results across a wide range of crops.
NAA mimics the natural plant hormone auxin, regulating cell elongation and division.
After absorption, it:
Stimulates adventitious root formation
Enhances fruit set and retention
Regulates flower and fruit abscission
Improves nutrient transport within plant tissues
Its precise hormonal activity allows growers to control plant growth direction without causing excessive vegetative growth when applied at recommended rates.
Promotes strong and uniform root development
Improves fruit set and reduces premature fruit drop
Helps regulate fruit thinning for better size and quality
Broad crop adaptability and flexible application timing
Stable performance under diverse climatic conditions
Easy formulation handling for large-scale and small-scale use
Do not exceed recommended concentration
Avoid repeated high-dose applications
Store in a cool, dry place away from direct sunlight
Use protective equipment during preparation and spraying
Follow local regulations for usage and residue management
Q1: What is NAA mainly used for?
A: NAA is used to promote rooting, improve fruit set, regulate fruit drop, and assist in fruit thinning.
Q2: Can NAA be mixed with fertilizers or pesticides?
A: In most cases yes, but a small-scale compatibility test is recommended before mixing.
Q3: Does NAA affect fruit size?
A: Yes. Proper application helps balance fruit load, resulting in larger and more uniform fruits.
Q4: Is NAA suitable for nursery applications?
A: Absolutely. It is widely used for seedling rooting and transplant success.
Q5: Is NAA safe for crops when used correctly?
A: Yes. When applied according to guidelines, it is safe and effective.