red light may aid old seed germination rates

[Tonygreen]

from:

The Biotechnology of Cannabis sativa Sam R. Zwenger April, 2009

For instance, the Pf r form of phytochrome allows germination to proceed. Therefore, if one is having difficulty germinating recently purchased Cannabis seeds, they should try exposing them to a short period of red light before planting them.

I dont see a citation to any papers that say that though.
Thoughts?

Full text: http://archive.org/stream/TheBiotechnologyOfCannabisSativa/TheBiotechnologyOfCannabisSativa_djvu.txt

 

[Tonygreen]

Some science studies.

http://plantphys.info/plant_physiology/phytochrome.shtml

http://www.plantphysiol.org/content/42/3/333.full.pdf

http://www.biologie.uni-hamburg.de/b-online/library/plant_physiology/Seedgerm.html

Just some stuff I found looking into this a bit more.

 

[Tonygreen]

http://highered.mcgraw-hill.com/sit...pter41/animation_-_phytochrome_signaling.html

 

[mojave green]

myth plausible

myth plausible

720 - 1000 nm = There is little absorption by chlorophyll here. Flowering and germination is influenced. At the high end of the band is infrared, which is heat.

https://www.icmag.com/ic/showpost.php?p=6364138&postcount=63

 

[purple_man]

the only thing it might do, is increase the seeds temperature, hence forcing the embryo inside to drive it's metabolism to a higher rate -> "earlier propagation"...

BUT, if the embryo or the endosperm inside are damaged, no way any ammount of red light will help.

blessss

 

[Tonygreen]

Read some of the papers I linked to, they describe the effects of the Pf r form of phytochrome.

 

[mojave green]

good stuff tony
thanx