1000 ppm = 1 gram per liter. That is 3.875 grams per gallon. 250 ppm is one|
quarter of that.
email@example.com on 05/25/2001 11:02:45 AM
Please respond to firstname.lastname@example.org
To: Multiple recipients of list AROID-L
Subject: Re: Re: GA3 in seed germination
Many thanks for the info....but as far as pH goes... what number should I
be looking for? "7" or is there an acceptable deviation higher or lower?
Thanks for the info
I always make a potassium salt of GA.
It's been shown to be more active than other salts, or even pure GA.
GA is not freely soluble in water, so the easiest way to do this whole
procedure in your living room is to measure out the amount of distilled
water into any glass container under a good light.
Add the amount of GA that you want.
You'll see the powder floating on top of the water.
(A good conversion from parts per million (ppm)to something you can deal
with is to change it to milligrams per liter...not exact but VERY close)
Slowly add potassium hydroxide (KOH) to the mixture while stirring gently.
Use very small amounts at a time.
At some point the powder will suddenly disappear and go into solution.
The Ph should be OK if you haven't overused the potassium hydroxide.
If your worried, use litmus paper or a pool Ph test kit.
Hope that this helps!
>From: Iza & Carol Goroff
>To: Multiple recipients of list AROID-L
>Subject: GA3 in seed germination
>Date: Thu, 24 May 2001 17:25:04 -0500 (CDT)
>A typical dose for seeds is from 250 to 1000 parts/million. 1 gram should
>last much, much longer. The use of GA3 was thoroughly investigated by Dr.
>Norman Deno in his Seed Germination and Practice (and in two subsequent
>supplements), where he investigated various
>approaches for germinating over 5,000 species of plants. GA3 does not
>easily dissolve in water. I cannot find my copy of Seed Germination and
>Practice to give the the procedure for its dilution, although in the
>supplements he has no problem germinating the aroids listed
>without the use of GA3, instead using different temperature/time patterns.
>My suggestion is to NOT put all of your eggs (seeds) in one basket. While
>GA3 works wonders with some species, others are killed.
>Marc Burack wrote:
> > Based on the info you sent, I think that GA is really more in line what
>I am looking for....
> > I purchased some yesterday although it seemed more expensive than I
>thought... I paid $25 for 1 gram. I really dont know if that is expensive
>or not, but obviously since I am going to use small amounts per
>application, 1 gram should be good for anywhere from 5-8 uses.
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