IAA 3-Indoleacetic Acid
General Information
IAA 3-indoleacetic acid is an auxin plant hormone and broad-spectrum plant growth regulator. IAA is present widely in plants and has indole auxin activity. It promotes plant cell division and induces callus formation and adventitious rooting. IAA helps regulate geotropism and phototropism and can accelerate embryo induction, root initiation and elongation, fruit set, and prevent fruit drop. IAA has diverse physiological effects on plant growth depending on concentration - low levels encourage growth while high levels inhibit it. Sensitivity to IAA varies across different plant tissues and species. Its ability to stimulate plant cell division and growth makes IAA widely used in plant tissue culture media. In summary, IAA 3-indoleacetic acid is a key auxin plant hormone with broad effects on plant development and morphogenesis. It is an important plant growth regulator due to its role in cellular growth processes.
Specification
|
Appearance |
White crystal |
IAA |
≥99.0% |
|
Melting Point |
166~169℃ |
Residues after Ignition |
≤0.1% |
|
Loss on Drying |
≤0.5% |
CAS NO. |
87-51-4 |
Functions
1. Absorbed by stems, leaves and roots at varying concentrations to promote or inhibit growth.
2. Influence cell division, elongation, and differentiation.
3. Affect elongation, maturation and aging of vegetative and reproductive plant organs.
4. Use in tissue culture to induce callus and root formation.
5. Regulate phototropism and geotropism.
6. Promote fruit set and prevents fruit drop when applied properly.
Dosage Tips of IAA
1. Application methods
1.1. IAA 3-indoleacetic acid can be applied as powder or in various water concentrations based on needs.
1.2. Convenient to use alone to promote crop growth and rooting.
1.3. Widely used in agricultural production.
2. Compounded formulations
2.1. Combine with NAA for rooting agents at 1:2 ratio of IBA: NAA.
2.2. Mix with gibberellin and brassinolide to break dormancy.
3. Fertilizer additions
It can be mixed into flush/drip fertilizers.
4. Seed treatment
4.1. Soak seeds in 20-100 ppm IBA for 6-24 hours.
4.2. Quick dip seeds in 2000-3000 ppm for 2-3 seconds.
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