The synthetic root-growth hormones, indole butyric acid (IBA) and
naphthalene acetic acid (NAA) stimulate root initiation and growth. (Each
doing one more than the other, but I don't recall which is which). Vitamin
B1 is also a root-growth stimulant.

Superthrive contains B1 and NAA, K-L-N contains B1, IBA, and NAA. There are
lots of concoctions out there on the market, so if those aren't available in
Australia, there's bound to be something that's analagous.

Either can be used as a presoak or as a fertilizer additive. As a presoak,
add about a teaspoon to 4 liters of water, as an additive, about a drop.

The hormones are quite unstable in light and heat, so only mix what you're
going to use, and store the rest where it's dark and cool.

--

Ray Barkalow - First Rays Orchids - www.firstrays.com
Plants, Supplies, Books, Artwork, and Lots of Free Info!
..
"Dave Gillingham" wrote in message
...
This query relates to my D. carronii query. If root
disturbance/maintenance may be a serious problem, are there any
preparations that specifically promote root growth in orchids?
Similar to the concept of cutting powders to stimulate growth of roots
with garden cuttings. I'm reluctant to dive in & use such a powder on
an orchid I have only just acquired after lusting for it for so long.
Dave Gillingham
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