Using uv light to increase resin production

[theo212]

I've read that dope produced resin, THC crystals etc. as a sort of anti UV burn sunblock; some believe that adding UV lights in the flowering stage can serve as be a kind of good stress, the plant picks up on the increased UV and responds by increasing its resin production, sounds great, except that UV light also degrades the resin and THC crystals...bad. So there's two schools of thought, UV good, UV bad, i've been thinking that maybe 4 hrs or so of UV might be good, just to kick in the plants natural defense responses without degrading any bud. Maybe turn the UV bulb off for the last two weeks of flower? who knows. Anyway i'd appreciate any input on the topic. i'm thinking about adding a week uv bulb or two to my tent, waddya think?


https://www.rollitup.org/blogs/blog25517-grow-2-kushmans-strawberry-cough.html <-----] Strawberry Cough x Tahoe OG#Soilless: SCROG: week4: Soul Synthetics Nutes: Top V Fim Side By Side:My Current Grow<------------------]


"What comes around is all around"

 

[dbkick]

I ran a sunpulse 10k kelvin last cycle and really didn't notice much difference myself. although I'll run it again this cycle, last cycle I left the glass on the hood, this time I'll remove it.
The 10k one is made for like the last 10 days or so.

 

[polyarcturus]

any HID bulbs uvb is going to be significantly reduced by the outer envelope to the point there is very little UVB coming thru regardless. you need a bulb specifically designed to emit UVB, the 10000k is not that bulb. i use a mercury vapor for reptiles. reptile bulbs are about the only bulbs you can purchase that emit UVB

 

[gagekko]

any HID bulbs uvb is going to be significantly reduced by the outer envelope to the point there is very little UVB coming thru regardless. you need a bulb specifically designed to emit UVB, the 10000k is not that bulb. i use a mercury vapor for reptiles. reptile bulbs are about the only bulbs you can purchase that emit UVB

Haha, I use an old school tanning bulb, 300 watts

 

[whodatnation]

I bought a uvb light from the pet store and had it on for a few hours a day throughout flowering,,, I think it may have worked but honestly i cant remember.

 

[dbkick]

any HID bulbs uvb is going to be significantly reduced by the outer envelope to the point there is very little UVB coming thru regardless. you need a bulb specifically designed to emit UVB, the 10000k is not that bulb. i use a mercury vapor for reptiles. reptile bulbs are about the only bulbs you can purchase that emit UVB

The sunpulse 10k produces uva, uvb and uvc and is only used the last week.
http://sunpulselamps.com/Lamp_Selection.html

 

[theo212]

thank, yea that reptile bulb sounds like a good idea, i remember i used to keep a bearded dragon. anyway what wattage do you think would be appropriate? what are your suggestions on timing and whether its really effective?

 

[theo212]

the sunpulse 10k probably outta my price range

 

[polyarcturus]

hmmm i see that, well if that is the case they mnust be using the porper glass i will look into it and email them. if so look like polys getting a new bulb

but honestly i think they are lying simply in design, using the proper glass that would allow uvb to pass, to envelope the arc tube is not safe especially anything over 250w.

 

[dbkick]

the sunpulse 10k probably outta my price range

76 bux online for the 1kw..

 

[dbkick]

hmmm i see that, well if that is the case they mnust be using the porper glass i will look into it and email them. if so look like polys getting a new bulb

but honestly i think they are lying simply in design, using the proper glass that would allow uvb to pass, to envelope the arc tube is not safe especially anything over 250w.

they used to run a buck fidy or so. pricier than hortilux.

 

[polyarcturus]

thank, yea that reptile bulb sounds like a good idea, i remember i used to keep a bearded dragon. anyway what wattage do you think would be appropriate? what are your suggestions on timing and whether its really effective?

i use a 160w mercury vapor for a 2x4 area, or a 23w cfl per plant. i would run it the whole time with you lights. (honestly a 100w would probably be enough for each area of 2x4)

 

[colonuggs]

suppopse to add 100 watt uv2 per 1000 watt... helps to increase resin production... not raise/increace THC % content

[video=youtube;aQPC6oAMK4k]http://www.youtube.com/watch?v=aQPC6oAMK4k[/video]

 

[dbkick]

err, that's not for the 1kw. they're still pricey.

 

[theo212]

d'you recommend it? have you noticed increase in resin, stickiness, smell etc

 

[dbkick]

you might want to see if your ballast is listed at this page.... http://sunpulselamps.com/Certified_Ballasts.html

 

[dbkick]

d'you recommend it? have you noticed increase in resin, stickiness, smell etc

if you mean me, I've only run the bulb one cycle and really couldn't tell but I did leave the glass on the hood which probably made running the thing redundant.this time the glass comes out.

 

[polyarcturus]

d'you recommend it? have you noticed increase in resin, stickiness, smell etc

yes to all.

 

[polyarcturus]

well at least its certified i got a lumatek, they giving it a bad rep though...:/ ive never heard nothing but good things about lumatek. hell i bought some old as 240v 1000w at one time and they worked like champs so much so, i pawned em off to the next guy for all my money back.

 

[dbkick]

well at least its certified i got a lumatek, they giving it a bad rep though...:/ ive never heard nothing but good things about lumatek. hell i bought some old as 240v 1000w at one time and they worked like champs so much so, i pawned em off to the next guy for all my money back.

you clearly haven't visited the hydro shop I frequent, I see lots of lumatek returns, one melted pretty badly. although the phantom that scores good there I just returned. first return the shop has had of the phantom.