20 minutes of incandescent at start of dark cycle!! What to do?

[BigSwifty]

Hey,

I forgot to close the curtain to my room. Thought I'd be back earlier. The HIDs went out at normal time, but the plants were exposed to indirect incandescent light for 20 minutes at the start of the dark cycle. I got home and immediately closed the curtain! So here's my question:

Should I let them run on the normal schedule and they'll only get 11hrs 40mins of darkness tonight? Or should I give them 12 hours of darkness tonight and readjust my timer to start 20 minutes later? The plants would then be on a new daily schedule... 20 minutes later than the original schedule.

I'm on day 46 of flower and I really hope I didn't fuck things up!!

 

[asstastic]

day 50 of flower i got a new light and forgot to set the timer so my light was on allnight and nothing happend so dont do it again youll be good unless you see nanners butt your so far in your plants will not be effeced do not fuck with your lights just let them be or youl fuck them up

 

[Hash Man]

you will be fine. dont freak out or anything, just take precautions to keep your light schedule consistant.if the light had come on inthe middle of the dark cycle you would maybe have an issue, but 40 min at the beginning of the dark is nothing to worry about.

 

[theweedman.fr]

YEah i'm just going to repeat what the others have said dude, dont fret about it. I left my tent open and the bathroom light on for about 2 hours last night into plant 'night time'.. its shit but somtimes these mistakes happen, usually doesnt effect in any way if you get back to hardcore routine. best of luck.

 

[onefiftyfour]

plants don't have watches

 

[compost]

the plants probably just thought a bright comet went by. Shouldn't be a huge deal are dark rooms are more intense then nature except all the LCD displays and lights. Good piece of advice is when you are that far in flowering do nothing drastic unless your plant is gonna die. 20 minutes of light is like 1 leaf dying though its not good for the plant it should not adversely effect the plant in a distinquishable way.

 

[ScrubNinja]

plants don't have watches

Care to explain photoperiodism then?

"bright comet" lol. Maybe they hermie because they think the world is ending in a torrent of firey death raining from the heavens.

I agree though, no big deal on the light leak with any luck.

 

[onefiftyfour]

my guess would be genetic memory from millions, if not billions, of years growing naturally around the world. and getting its flowering trigger from the earths yearly cycle?

i highly doubt it would have anything to do with a watch.


from the way im interpreting OP's post, it was not an interrupted dark cycle, just a very slightly extended light cycle under weak lighting. i doubt it would have any impact on the plant AT ALL.

but i could very well be wrong...

 

[asstastic]

a mj plant does tell the diff
when the plant is lit stress is induced and when its dark it fixes it self so not fixing itself for 12 hours would not induce flowering but the plant wont take it into concideration untell dark deminishes enough so yes it has a clock but dosent use it unless its off by enough
the watch is hypathetical just to clear that up

 

[ScrubNinja]

Yeah I took it that "watch" = an inbuilt time-keeping ability.

my guess would be genetic memory from millions, if not billions, of years growing naturally around the world. and getting its flowering trigger from the earths yearly cycle?

When I change my timer from veg to 12/12, the only trigger that changed was night time length. Therefore the plant has a "watch". Other things can influence flower a little, but it is overwhelmingly dependant on photoperiod. Unless it's an autoflower of course.

 

[onefiftyfour]

ive been thinking about this photoperiod thing last night and was wondering..

we veg plants in roughly 75% to 100% light per 24hour day(cycle)

dropping that amount of light to 50% per cycle triggers flowering.

im curious to know whether experiments have been done that keep the veg and flower light/dark %ratios.. but apply them on a full cycle time of MORE or LESS than 24hrs?
and what effects they have on the plant if done from seed (ie the plant never experiencing a 'regular' light cycle)

for instance (veg)
12 hours lights on, 4 hours dark.
or 21 hours light, 7 hours dark
even to an extreme
3 days lights on, 1 day dark.

the light/dark ratio would still be correct. but how would this affect the plant?

im off to do a search....

 

[Hazy Lady]

Lets forget auto's, extreme case Sativas etc, as I understand things, the plant will want to flower all it's life or rather as soon as mature enough, it's part of it's survival method. Nature has refined this so that they flower when the time is best with a hormone
This hormone prevents flowering until the right time of the season, each hour of daylight produces more and more of this hormone and as long as the hours are long enough there will always be enough of this ' bloom blocker' to keep the plant growing vegatively, in nature it happens at different hours dependant on latitude but indoor we trigger at 12 hours of dark, during the 12 hours of light the plant can't produce enough of the hormone to prevent flowering and so it does just that.
Of course light leaks and dodgy timings will cause stress and have an influence but as long as the plant is only receiving 12 hours light should flower
@ onefiftyfour You might be better turning your lights down from 18/6 17/7 16/8 until you trigger flowering, you could end up with a longer grow day and benefit from that at harvest time?

 

[Zowie]

I always wondered why you always hear about not letting any light leaks into your grow room, as in, not even a pin light... yet what about all the stars, moon, comets lol.

How does a pinlight hole become any worse than that? Is it because it's CONSTANT??

 

[Hank Hemp]

Darkest is best indoors. Remember we are talking indoors correct? Light leaks increase the chance of hermies.