harvest after dark period or not?

Star Dog

Star Dog

Well-Known Member
Iodine starch testing tell us starches stored in the leafs is used up through the dark period, who knows there could be something to it?

If you soak a leaf in solvent then put Iodine on it, it'll turn black if you do it before lights off, if you try it at lights on the leafs stays white/cream because there's no starch for the Iodine to bond to its been used.
 
coreywebster

coreywebster

Well-Known Member
Star Dog said:
Iodine starch testing tell us starches stored in the leafs is used up through the dark period, who knows there could be something to it?

If you soak a leaf in solvent then put Iodine on it, it'll turn black if you do it before lights off, if you try it at lights on the leafs stays white/cream because there's no starch for the Iodine to bond to its been used.
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That's an interesting science lesson.
 
Star Dog

Star Dog

Well-Known Member
I've always cut it at my convenience when it's lit up but I wouldn't write off some minor differences, I suppose the question would be is how quickly does starch break down?

Or, maybe it's advantageous to have it present?
 
Star Dog

Star Dog

Well-Known Member
budman111 said:
Read years ago that it was best to chop them in the dark for this very reason, when the light comes on the starches go shooting into the plant.
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That's interesting, it's logical, starch being present after the light comes on is science based its a fact, it's literally a test to check if photosynthetic has occurred.

Would you say it made a difference to the smoke?
 
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