Smoke water

William Hoffmann
Thu, 13 Nov 2014 02:42:39 PST
Some very interesting work has been done to identify how smoke
promotes germination. A compound called Karrikinolide that is present
in smoke is believed to be the primary factor that breaks seed
dormancy. It appears to act similarly to gibberellin or  works
synergistically with giberellin. It can have an effect at very low
concentrations, so not much needs to reach the seed to have an effect.
Karrikinolide has been found soil after fire, so it may not be
necessary for direct contact between smoke and the seed to have an

> I think the actual material which breaks down germination inhibitors is, in
> the majority of cases, charate. Smoke probably doesn’t come into contact
> with seeds long enough for anything to happen.

William A. Hoffmann
Associate Professor
Department of Plant Biology
North Carolina State University
Raleigh, NC, 27695-7612
Phone: (919) 513-7668…
pbs mailing list

More information about the pbs mailing list