Quote Originally Posted by farredeyed
So if i were to revise this rough little schedule here to give you a visual of how I'm interprating that
Fr.....<---------------------------------------------------------->
R......<------------------------------------------------>
B......<------------------>
........0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23

would that be more optimised? or do you mean you can have more blue "day" time?
It all depends! What spectrums are you talking about? Different color spectrums operate at different rates, even within the ranges of Red and Far Red that you're talking about. Phytochrome is most sensitive at ~660/735, so the farther you get away from that, the less stimulated phytochrome is by the same wattage of light, so the effect on the plant's clock is less. You'd also have to consider intensity at some point. You're asking what the timing is without cosidering the rate of the spectrum. Both are very important aspects because it seems to be that it takes a certain amount of biologically-active phychrome Pr to be present for a certain amount of time for flowering to occur. The spectrum affects the rate, so to maintain the same (rate x time) product, you'd need to adjust your timing accordingly. You're on the right track, though, by putting more Far Red than Red, but for me understanding the relationship is Far more important than knowing the numbers.

Quote Originally Posted by farredeyed
I was kind of wondering with a schedule like the first one if the increased rate of conversion between pFr and pR affect the speed of the plants overall lifecycle like an instant autoflowerer, or even just to see what happens out of curiosity. assuming I've not gotten the wrong idea that that red and far red don't disturb the plants perception of night and that an equal amount of far red can revert phytochrome in a time equal to the red's photsynthetic period.
I'm very curious what kind of Martian night would be good for an autoflowerer. Great question.

I think that you have still got a different impression than I got. Red and Far Red absolutely do affect the plant's perception of night. That's what I've been meaning when I'm talking about the plant's "clock". It's the plant's perception of how fast the night is actually happening. Red makes it slower, Far Red makes it faster, but not necessarily at the same rate. I don't know what the numbers are, that's why I have this grow log!

Sal has them, and they're in for publishing, so he can't share them yet. In the mean time, I started this log to try and guess. :thumbsup: