Search in IPPS abstracts:

All Volumes

Previous article
Next article

Previous volume
Next volume

Proceedings of the International Plant Propagator's Society

Vol. 42

Advances Using Indole-3-butyric Acid (IBA) Dissolved in Water for—Rooting Cuttings, Transplanting, and Grafting

Joel Kroin

pp: 489-492


Since the 1930s the plant growth regulator indole-3-butyric acid (IBA) has been used in the rooting of cuttings and other growth processes. Other uses for IBA include promoting root regeneration when transplanting plants and to possibly improve grafting success. Concentrations used for rooting range from 10 to 20,000 ppm IBA. The method of use and concentration of IBA is determined by many variables including plant type, time of year, propagation conditions, etc.

Liquid sources of IBA include premixed concentrated liquids containing up to 1.03% IBA dissolved in organic solvents such as ethanol (up to 99.5%) (EPA registrations as of 1992), and water soluble tablets containing 20% IBA which are made into a solution by the grower (U.S. registered Rhizopon-AA Water Soluble Tablets) (Blazich, 1988, Hartmann et al, 1990; Macdonald, 1986) IBA dissolved in water has proved to be more effective for rooting than IBA dissolved in alcohol, or the other auxins, indoleacetic acid (IAA) or

Full text: IPPS members     ISHS members & pay-per-view
(PDF 351504 bytes)



IPPS membership administration       ISHS membership administration

IPPS—International Plant Propagator’s Society
4 Hawthorn Court . Carlisle, PA 17015-7930 . USA
Phone: 717-243-7685 . Fax: 717-243-7691 . Email: