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Re: Concentration of Gibberellin A3 (GA3)?

Thought I'd send this along though it does not answer the question.
        Gibberellin/Gibberellic Acid(trade names Pro-Gibbr 4% Liquid or Gib-Solr
In plants, there have been over 70 different forms of gibberellin that have
been identified. Gibberellins are important in seed dormancy, cell
enlargement, phototropism (the movement of plants toward the sunlight) and
many other factors.  In the commercial production of table grapes, the
gibberellin which has been widely used is gibberellic acid number 3 usually
referred to as GA3.
In varieties like Thompson Seedless, Flame Seedless, Perlette and a few
other varieties (seedless grapes primarily) GA3 (gibberellic acid) is used
for either thinning out the number of flowers which set fruit, a bloom
thinning spray, or for increasing the size of the berries(referred to as a
sizing spray which is applied about one week following bloom). In some
varieties both a bloom spray and one or two sizing sprays are generally applied.
One must be extremely careful when using GA3 on grapes. Each variety has a
different tolerance level and one should not "experiment" or use more of the
material than is recommended for any given variety.
                                ******************
I had just brought the table grape book home from the Ag office to refer to
when girdling my Thompson seedless and was reading allllll about Gibberellin
and thought others might be interested. I don't even know how to pronounce it!
L



At 01:17 PM 4/22/97 -0600, you wrote:
>Can anyone tell me (or direct me to the source for) the proper
>concentration and usage of GA3 to be used in assisting seed germination?
>
>
>Don Martinson
>dmartin@cdmas.crc.fmlh.edu
>
>"Existing order thrives upon ignorance and lies.
>Objective truth and individual reason are feared above all."
>
>
>
>
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