Indole-3-Acetic Acid IAA Plant Growth Regulator

Product Overview

Indole-3-Acetic Acid (IAA) is a naturally occurring Plant Growth Regulator belonging to the auxin family, widely used in modern agriculture to promote cell elongation, root initiation, and fruit development. As one of the most important Plant Extracts-derived phytohormones, IAA plays a critical role in regulating plant physiological processes and improving crop productivity.

In commercial agriculture and horticulture, IAA is increasingly utilized in Growth Promoters, Rooting Agents, and Foliar Fertilizers. Its compatibility with Agricultural Enzymes and Nutritional Ingredients makes it a key component in integrated crop management systems. B2B buyers—including agrochemical brands, fertilizer formulators, and OEM solution providers—value IAA for its efficiency, biodegradability, and regulatory acceptance in many global markets.

Content Note: Prepared by our technical team based on current scientific literature. Health claims comply with FDA/EFSA guidelines. Last reviewed: April 2026

According to a study in Plant Physiology (2010), Indole-3-Acetic Acid plays a central role in regulating plant cell elongation and differentiation through auxin signaling pathways.

A study published in Journal of Experimental Botany (2018) found that exogenous IAA application significantly enhanced root formation and stress tolerance in various crop species.

Key Ingredients & Specifications

Our Standardized Extracts of IAA are produced under strict quality control systems to ensure stability, purity, and consistent bioactivity for agricultural applications.

Differentiation Content

Extract Concentration vs Application Scenario

Comparison with Alternative Auxins

Applications & Benefits

IAA is widely used across agricultural and horticultural industries due to its multifunctional role as a Growth Promoter and Rooting Agent.

• Agriculture: Enhances crop yield, improves nutrient uptake, and supports stress resistance.
• Horticulture: Promotes rooting in ornamental plants and nursery propagation.
• Greenhouse Cultivation: Improves flowering consistency and fruit quality.
• Agrochemical Formulations: Integrated into Foliar Fertilizers and Plant Growth Regulators.

IAA can also be combined with Enzyme Preparation and micronutrients to create advanced Nutritional Fortifiers for precision agriculture solutions.

Why Choose Us – Quality, Certifications & OEM Capability

We provide high-quality Herbal Extracts and plant-based active ingredients tailored for global B2B buyers.

• Certifications: ISO, HACCP, GMP, Organic, Kosher, Halal
• Manufacturing Capabilities: Powder & Drink Manufacturing, Liquid formulation, Custom blends
• OEM Services: Private label, formulation customization, packaging design
• MOQ: Flexible starting from 1 kg for bulk ingredients
• Lead Time: 7–15 working days depending on order size

We support integration with Agricultural Enzymes, Industrial Enzymes, and other Plant Growth Regulators to meet diverse formulation requirements.

Frequently Asked Questions

What is the primary function of IAA in plants?

IAA primarily regulates cell elongation, root development, and directional growth responses in plants.

Is IAA suitable for organic agriculture?

IAA is naturally occurring, but organic certification depends on formulation and processing standards. Please consult specific regulatory guidelines.

What crops benefit most from IAA application?

IAA is widely used in fruits, vegetables, cereals, and ornamental plants, particularly during early growth and rooting stages.

Can IAA be combined with other inputs?

Yes, IAA is compatible with many Foliar Fertilizers, micronutrients, and Enzyme Preparation systems.

What is the recommended storage condition?

Store in a cool, dry place away from light to maintain stability and effectiveness.