Has anybody used MH throughout an entire grow?
- Thread starter 1134206
- Start date
UserFriendly
New Member
you can use MH the whole life of the plant, no problem. they aren't as efficient as HPS, but they do good.
babygro
Well-Known Member
You can use a MH for the whole grow, but the yield will be down over a HPS, but potency will probably be slightly increased due to the small amounts of UVB the MH outputs, as long as the MH you have doesn't filter UVB.
babygro
Well-Known Member
jackinthebox
Well-Known Member
how many plant are you planning on growing? 100 watt MH isnt that big, so dont try and grow to many plants. If you have a grow room, I would deff reccomend either getting some mylar, or painting the walls white, to help utilize your lightning.
Good luck buddy, and grow on : )
Good luck buddy, and grow on : )
WrldWidRadio911
Well-Known Member
Tetrahydrocannabinol - Wikipedia, the free encyclopedia
Tetrahydrocannabinol, also known as THC, Δ9-THC, Δ9-tetrahydrocannabinol (delta-9-tetrahydrocannabinol), Δ¹-tetrahydrocannabinol (using an older numbering scheme), or dronabinol, is the main psychoactive substance found in a variety of plants; most abundantly so in the Cannabis plant. It was isolated by Raphael Mechoulam and Yechiel Gaoni from the Weizmann Institute in Rehovot, Israel in 1964. In pure form it is a glassy solid when cold and becomes viscous and sticky if warmed. THC has a very low solubility in water, but a good solubility in most organic solvents such as ethanol or hexane. As in the case of nicotine and caffeine, THC's most likely function in Cannabis is to protect the plant from herbivores or pathogens [1]. THC also possesses high UV-B (280-315 nm) absorption properties, protecting the plant from harmful radiation.
Giving your plant a few ours of UVB a day during flower could trigger the plant to create more THC to protect itself!
jackinthebox
Well-Known Member
Nice post radio : )
WrldWidRadio911
Well-Known Member
Growing Hallucigenic buds - Reefer World
OldTimer vbmenu_register("postmenu_1033", true);
Junior Member
Join Date: May 2004
Posts: 7
Yes Lucifer, it clearly indicates why most truly tripping weeds come from outdoor mid to upper temperate and tropical belts. But some also come from upperLower to mid temperate outdoor belts and pockets as well where it is cooler, but sunny and Hi in UV light(skin/sunburn most summer days) - like upper altitude areas in that belt.
Many recent leadingEdge studies and research are already indicating and begining to quantify that ratios aspect of the cannabinoids. Ratios between all derivatives of the entire cannabinoid product/resin have large-ranging differing effect.
Swampy, There are proper Fluorescent UVB(and UVA) tubes available and they're much more expensive than the UVA and the standard ones(4times or more the cost). Never run them on Energy-saver or Econo running gear as that produces less lumen output with any fluro. But be very careful when using the UVB tubes. If not for the slightly glowing tube when they are on, you could hardly tell they were on in the room - they transmit entirely in the invisible wavebands, whereas UVA tubes, MH and HPS transmit low amounts of only in the UVA waveband, which is slightly visible(voilet) and nowhere near as penetrating/powerful as UVB. But expose any skin to them(UVB 40W tubes) from less than 6feet away, and it burns in minutes. Like proper sunburn and worse if closer - can easily promote skinCancer(as does the sun). Can give you cateract in no time at all, even with sunglasses, from even 10feet away and more. IF you intend on using them, make sure that you never walk into the growroom when they are on. Have a swtch for them outside the room, or just inside the door. If just inside the door, turn them on and off immediatly you close or open the door. One 40Wer can cover an area 5foot down, 5foot by 5foot across. So with every 600 or 1000Watter, you have 1 40W UVB Fluro with it, AND '120W Clear Incandescent bulb as well for 1 hour either side of lights on and off - simulating the red ambient light of the outdoors ever dusk and dawn of every day anywhere in the world'. This Incandescent wavelength is as critical as any other. The lightband is required as it aids in the 'benefical' toxification and detoxification the plant needs to complete the activation process fully. Couple all that up and timed correctly indoors with either MH or HPS, and pollenate the mum/s, and you'll be well on your way to producing the most potent buds you can indoors. More potent than any indoors buds grown without all these factors - no matter how sticky and smelly they are. They won't be as potent as the ones you grow using this ENTIRE method.
Glad people enjoyed reading it.
OldTimer vbmenu_register("postmenu_1033", true);
Junior Member
Join Date: May 2004
Posts: 7
Yes Lucifer, it clearly indicates why most truly tripping weeds come from outdoor mid to upper temperate and tropical belts. But some also come from upperLower to mid temperate outdoor belts and pockets as well where it is cooler, but sunny and Hi in UV light(skin/sunburn most summer days) - like upper altitude areas in that belt.
Many recent leadingEdge studies and research are already indicating and begining to quantify that ratios aspect of the cannabinoids. Ratios between all derivatives of the entire cannabinoid product/resin have large-ranging differing effect.
Swampy, There are proper Fluorescent UVB(and UVA) tubes available and they're much more expensive than the UVA and the standard ones(4times or more the cost). Never run them on Energy-saver or Econo running gear as that produces less lumen output with any fluro. But be very careful when using the UVB tubes. If not for the slightly glowing tube when they are on, you could hardly tell they were on in the room - they transmit entirely in the invisible wavebands, whereas UVA tubes, MH and HPS transmit low amounts of only in the UVA waveband, which is slightly visible(voilet) and nowhere near as penetrating/powerful as UVB. But expose any skin to them(UVB 40W tubes) from less than 6feet away, and it burns in minutes. Like proper sunburn and worse if closer - can easily promote skinCancer(as does the sun). Can give you cateract in no time at all, even with sunglasses, from even 10feet away and more. IF you intend on using them, make sure that you never walk into the growroom when they are on. Have a swtch for them outside the room, or just inside the door. If just inside the door, turn them on and off immediatly you close or open the door. One 40Wer can cover an area 5foot down, 5foot by 5foot across. So with every 600 or 1000Watter, you have 1 40W UVB Fluro with it, AND '120W Clear Incandescent bulb as well for 1 hour either side of lights on and off - simulating the red ambient light of the outdoors ever dusk and dawn of every day anywhere in the world'. This Incandescent wavelength is as critical as any other. The lightband is required as it aids in the 'benefical' toxification and detoxification the plant needs to complete the activation process fully. Couple all that up and timed correctly indoors with either MH or HPS, and pollenate the mum/s, and you'll be well on your way to producing the most potent buds you can indoors. More potent than any indoors buds grown without all these factors - no matter how sticky and smelly they are. They won't be as potent as the ones you grow using this ENTIRE method.
Glad people enjoyed reading it.
babygro
Well-Known Member
Very interesting, I enjoyed reading it and I'd not read that one before. I wonder if the OldTimer there is in fact good old Oldtimer1?
I think he over-states the power of the 40w UVB fluoro, but I'm not sure I'd want to be the person finding out if he's right or not and would therefore follow his rather sensible suggestion of being able to turn the UVB light on and off from outside.
He doesn't really go into the logistics of how THC is affected by UVB exposure, simply stating that the buds would be more potent than non-uvb exposure grown indoor ones, which is pretty consistent with what I've read and beleive myself.
The one thing I was very curious about (and hadn't heard of it before) is the use of the incandescent lightbulb at the start and end of the daylength cycle for the plants to emulate the rising and seting sun's colour temperature. That's another jigsaw piece for me and makes perfect sense, although I'd not heard of it being used in conjuction with UVB exposure before. Only that, that nanometer range of light emitted by the incandescent light bulb fits exactly with the nanometer wavelength of light emitted by the rising and setting sun that acts as a trigger for the phytochrome found in the plants chloroplasts that acts as the plants internal clock by switching on and off Pf and Pfr pigments. It's this process that enables the plant to know when the light cycle changes to 12/12.
Interesting stuff, thanks for posting it.
AzGrOw-N-sMoKe
New Member
personally i do the whole grow with mh...but i use 2 different bulbs one super red an one super blue....they work great...1000watt mh....
babygro
Well-Known Member
Sunmaster bulbs?
AzGrOw-N-sMoKe
New Member
yep i get all my ish from Discount Hydroponics - Home Page
jackinthebox
Well-Known Member
Well im glad im growing outdoors now, especailly since I live in a tropical climate where if you dont wear sunscreen, you will get burned within the hour.
Hopefully I will get some nice potent white, and purple widow buds : )
Hopefully I will get some nice potent white, and purple widow buds : )
UserFriendly
New Member
Uvb Ftw!!!
