Hi Stephen,

Gibberalic acid (aka GBA) is a wonderful growth hormone in plants.  But it 
is often abused, and it is rather toxic (but no more so than other things 
that are used).  I have no idea why it is restricted or when this happened.  
I have used this compound in camelia growing.  You inject the newly 
developing flower buds to get HUGE flowers.  It is also used extensivelt in 
plant tissue culture.

Sigma chemical company lists it in their catalog (cat #g 1025) but it is a 
TAD pricey at $30 for 1 g!!!  But if you are really in the mood to 

    John Davis (marooned in aggieland)
    Department of Biology
    jdavis at bio_tamu.edu
    jmd9261 at tam2000_tamu.edu