LED with UVB seems to drastically reduce bloom time - good or bad?

[OttawaGreen]

My DNA chocolope plants used to take 10 weeks of 12/12 to finish with hps.
This grow I switched to LED and added reptile UVB. I am 7 weeks into 12/12 and the plants look almost ready. Anyone else noticed LED and/or UVB making their plants bloom much faster?
Having a batch ready in 8.5 weeks instead if ten seems great except perhaps this will mean less yield since they usual fatten up at the end(although they look great so far).
Who has tried led and/or uvb and fond flowering to be faster?

Check out colourful trichomes at week 7 of formerly 10 week strain:

 

[OttawaGreen]

So it was just the leaves trichomes that changed way earlier buds looking not too amber yet with 7-10 days left . So all is well

 

[BuddroGreen]

Looks really good & interesting info.

 

[OttawaGreen]

The uvb seems to make trichomes more densely and where it is shining even makes them in stems and bottom of leaves when they were not before.

 

[OttawaGreen]

 

[Dan Ultra]

You should enter in the Plant of the Month contest. Shes a beauty! Today is the last day to enter, so post it up

 

[OttawaGreen]

One more week and she finishes. Will enter next months

 

[mastertek2000]

according to the LED light i have that does have UVB with it i am to turn it on in the last 3 weeks when did you use you UVB ?? they say it increases the THC levels

 

[OttawaGreen]

The whole bloom time. Started with 10.0 cfls and moved them around then switched to 18" 10.0 tubes on the light mover.

 

[mastertek2000]

maybe that's why they say only use last 3 weeks so it don't make harvest to fast going to do mine last 3 weeks let you know what i find

 

[OttawaGreen]

Like I said it did not change my harvest time. I thought it would because the trichomes were changing early but that is only on the leaves. On the bud they look normal amount of cloudy and amber. It has been 9 weeks and I have one week to go same as normal.

 

[mastertek2000]

mine just started 5th week in bloom thanks for the info

 

[OttawaGreen]

I sure saw a difference. Hopefully it will smoke stronger too.

 

[mastertek2000]

please do keep me posted

 

[OttawaGreen]

I am pretty sure my Purpling was caused by uvb as it was not in the middle where the most uvb is given when the light mover pauses at the ends. Left it on anyway and now middle leaves have turned darker than purple with brown spots. I think they have uv burn. So maybe there is such a thing as too much ;-). Have turned off uvb for now. Perhaps last three weeks would be better if you have full diverge close to plants like I do. If it is far away or you have to move them around manual then maybe all the time is fine. Could also be strain dependant. I expect my sativas are used to more uv...
Oh well need to experiment more.

 

[Conradino23]

Interesting, for my money UVB ups the potency, especially if your pheno has higher levels of thc genetically. I've been thinking about influence on flowering time, but unfortunately I always use the same source of light: sun. Anyway to get full UVB benefits the plants should be exposed to it throughout the whole growing cycle, maybe except first week when they do not tolerate it well.

 

[Ascended]

Ok for starters this sounds awesome, but I have a couple questions. First what type bulb (spot light, CFL, or tube) did you use? did you only use one bulb or multiple? What wattage bulbs did you use?

My area is 4'x5'x7'h I currently have a 300W LED (cheap Chinese crap) and 8 23W CFLs @6500K and 1 23W 2700K (just because I ran out of the 6500K lights) and an old ass T-12 two bulb light fixture surrounding 3 plants in 10 Gallon fabric pots, and to say I don't get the best harvest for my setup is putting it mild, I got alright harvests for my experience level but nothing to write home about. So if I could find a way to boost the amount of trichomes (I make oil too so this is a bonus) I would be a very happy guy, then I can work on building the rest of my system and replacing the crap lights.

 

[Dan Ultra]

Ok for starters this sounds awesome, but I have a couple questions. First what type bulb (spot light, CFL, or tube) did you use? did you only use one bulb or multiple? What wattage bulbs did you use?

Two ES-150x3W-3GB

Taken from OttawaGreen's grow journal

 

[mastertek2000]

found this you may want to look at

[video=youtube;Dny-koVRJLs]

[/video]

 

[mastertek2000]

this is my LED light i have they came with UVB bulbs and stated to use them only final 3 weeks