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Re: Hormones
> I have had increased seed germination by freezing, I have been using this
> method for 15 years. What is it doing to the seed to improve germination?
>
> George Brooks
> N. Tewksbury, MA USA
George,
It is often recommended by seed companies to store unused seed in the
fridge (near 4 C). I suspect cooler temperatures slow down the seed
degradation process by maintaining endogenous hormone levels (eg. GA)
higher, longer. Temperature is the driving force in many chemical
reactions, and the breakdown of PGR's is one of them.
Will Neily
Horticulture Instructor
Olds College, AB
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