Indolylbutyric acid
Description
Indolylbutyric acid (IBA) is a potent plant hormone belonging to the auxin class, widely recognized for its ability to promote root development. Unlike herbicides or fungicides, IBA functions as a natural-like growth regulator, specifically tailored to optimize propagation and root health in various botanical species.
The mechanism of action involves the stimulation of cambial cells to differentiate into root primordia. By applying IBA to the base of cuttings, growers can initiate root development even in woody or semi-woody species that are typically difficult to propagate. It serves as a biological signal that redirects the plant's metabolic resources toward establishing a robust underground system.
This substance is extensively used in nurseries and commercial greenhouses for propagating fruit trees, ornamental shrubs, grapevines, and conifers. Beyond cuttings, it is also applied to root ball systems of saplings before transplanting, which significantly reduces transplant shock and facilitates quicker establishment in diverse soil environments.
Application procedures must be handled with precision regarding dosage and exposure time. Over-application can inhibit rather than promote growth, potentially causing developmental abnormalities in the new root system. It is advised to follow manufacturer-specific concentration guidelines, as different plant species have varying sensitivities to synthetic auxins.
Safety is a priority when handling professional-grade plant hormones. Although IBA is generally low in toxicity, operators should always use protective equipment such as gloves and eyewear to prevent irritation. After usage, ensure proper storage in a cool, dark place to maintain chemical stability and dispose of any remaining solution according to local environmental regulations.
Status in the European Union
Approved in the EU
- CAS number
- 133-32-4
- Category (EU)
- PG - Plant growth regulator
- Approved from
- 01.06.2011
- Approval until
- 31.01.2028
Regulatory status data: EU Pesticides Database © European Union, CC BY 4.0. EU status is for reference only and does not replace national registration in your country.