Re: IBA?
- To: <propagation@mallorn.com>
- Subject: Re: IBA?
- From: "* <m*@worldnet.att.net>
- Date: Fri, 23 Apr 1999 09:26:31 -0700
-----Original Message-----
From: WHTROS@aol.com <WHTROS@aol.com>
To: propagation@mallorn.com <propagation@mallorn.com>
Date: Thursday, April 22, 1999 11:20 PM
Subject: Re: IBA?
>OK, I give up -- What is IBA??
> ..
>Barb
>USDA Zone 5, Rock Island, IL
IBA is indolebutric acid, a synthethic root-promoting chemical used to
stimulate adventitious root production in curttings. NAA, napthaleneacetic
acid is another. The chemicals are available in various strengths in
commercial prepartations or dispersed in talc. The pure chemicals are
usually available only directly from chemical supply companies.
The rooting hormone preparations commonly available to the home gardener may
contain either IBA or both IBA or NAA. Plants respond differently to the
different hormones so it may be necessary to experiment. IBA is more
commonly used because of its lower toxicity to plants. Available products
include Rootone, Dip ‘n Grow, and Hormodin. At one time, Rootone contained
both IBA (0.1 percent) and NAA (0.03 percent) plus traces of several other
hormones in a talc powder. In the current version, NAA is increased to 0.2
percent, and a 4 percent concentration of tetramethylthiurndsulfide is
added. Dip ‘n Grow also contains both IBA and NAA (1.0 percent and 0.5
percent, respectively) plus boron in a liquid alcohol solution. Dip ‘n Grow
needs to be diluted before using. The amount of dilution depends on the
type of plant to be layered. Hormodin is a talc powder containing IBA in
concentrations of 0.1, 0.3 or 0.8 percent depending on the application.
Shelf life of uncontaminated hormonal compounds is usually expressed as 1
year but can be indefinite if stored at the proper temperature. Rooting
hormones commonly available to the home gardener may contain either IBA
(indolebutyric acid) or both IBA or NAA (napthaleneacetic acid). Plants
respond differently to the different hormones so it may be necessary to
experiment. IBA is more commonly used because of its lower toxicity to
plants. Available products include Rootone, Dip ‘n Grow, and Hormodin. At
one time, Rootone contained both IBA (0.1 percent) and NAA (0.03 percent)
plus traces of several other hormones in a talc powder. In the current
version, IBA is eliminated.
Olin
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