Back to the growth hormone discussion...
I spent most of the afternoon and evening yesterday googlin' for auxin hits, auxin toxicity, etc. and found some pretty good reading material...
Like Pam said, there is not much out there that is available free to read...there seems to be several articles in some medical journals but you can only read the abstracts and have to buy the whole article.
What I did find that was very interesting to me was a book written in 1955 dealing with auxin ...it is simply titled Auxins and Plant Growth.
After reading the last chapter (XVIII) I have decided to stop adding superthrive to my nutrient schedule.
An excerpt from a paragraph on page 304 says "Each phenomenon in growth and development which is effected by auxins has its own concentration optimum, so that a given auxin concentration may promote one phenomenon and inhibit another."
The phenomenon they are talking about is stem growth, bud growth, and root growth.
"The optimum auxin concentration for growth of stems is higher than that for buds, which is in turn higher than that for roots."
I don't know how much or which growth hormones are in the botanicare products or superthrive that I use or what levels of auxin concentration are required for each stage of growth. After I read the whole book, I may change my mind.
If anyone else is interested in reading this book, here is a link...I downloaded the entire book in an adobe acrobat file. It is 374 pages.
http://www.archive.org/details/auxinsplantgrowt00leop
I will still use the Botanicare regimen but that alone will be used. (and it says on the label "premium organic plnat food" and is listed on the OMRI list).
The auxin subject has peaked my interest and now I can't read enough about it....