Northstar22
Member
Didn't get a pm I will try room you
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MH vs HPS in bloom
- Thread starter the gnome
- Start date
Didn't get a pm I will try room you
For some Varieties.
In other words if you have a variety different than the ones mentioned you will have to experiment to see if does produce more or less with MH.
That also goes for different Phenos of the varieties that are mentioned too.
These guys could seriously learn something from the tissue culture crowd.
Bio boy
Active member
not by watts dude, its needing more light hours to keep vegging, less to flwoer but if ya do that ya wil miss the 12/12 and end u with less light and a crappy plant :S ur gona need add the watts at the end to keep it alive, let them grow and stagger your crop
where are the tissue culture crowds? i started doing this recently its amazing i didnt know more were doing it
also same goes for those using dual spec then right? its trial and error there too
where are the tissue culture crowds? i started doing this recently its amazing i didnt know more were doing it
also same goes for those using dual spec then right? its trial and error there too
Search Tissue culture in the forum title search or you can follow my posts on it. What we are discussing more or less is how single changes to various chemicals we use in culturing plants in test tube cause radical if unexpected changes from variety to variety.
Right now I am describing how finding the sweet spot is not hard just not easy but once you dial in a plant it only works for clones of that plant perfectly.
Here in the light section many of these guys do not realize that it takes more than just certain lights to alter plant growth. First the Nutrients being used have an effect on the plants. Also hormone levels. If a plant does or does not have certain chems present it will grow different in different light situations. If it has more than it needs it will grow different in different situations.
The reality is that soil,water, nutes, natural and artificial hormones make just as much difference in plant growth as Light types.
Right now I am describing how finding the sweet spot is not hard just not easy but once you dial in a plant it only works for clones of that plant perfectly.
Here in the light section many of these guys do not realize that it takes more than just certain lights to alter plant growth. First the Nutrients being used have an effect on the plants. Also hormone levels. If a plant does or does not have certain chems present it will grow different in different light situations. If it has more than it needs it will grow different in different situations.
The reality is that soil,water, nutes, natural and artificial hormones make just as much difference in plant growth as Light types.
interesting thread full of decent info, a lot of sue-do science as well, so take it all in with a grain of salt.
one thing i find quite entertaining about lighting threads is the amount of people that think they can come up with a better light spectrum, than the sun. lmfao
if you want the healthiest plants get as close to the suns spectrum and output and you will be doing fine. HPS bulbs alone can never be better than full spectrum of equal PAR watt output, it's just not possible.
one thing i find quite entertaining about lighting threads is the amount of people that think they can come up with a better light spectrum, than the sun. lmfao
if you want the healthiest plants get as close to the suns spectrum and output and you will be doing fine. HPS bulbs alone can never be better than full spectrum of equal PAR watt output, it's just not possible.
Marijuana Growing in Marketing is a simple formula. Throw some technical mumble jumble out there with a little bull shit and you will get a portion of the market share (that you can reach).
Plants needs Lumens and not so much heat. I seen a video where Jorge Cervantes was at an outdoor grow site in California. He has put a translucent cover over an outdoor crop to protect the plants from excessive heat. His declaration being, "They got all the lumens they needed, but the excessive heat was hurting the plants".
Many advisers in the growing community say that the blue spectrum in the MH bulbs is good for new growth as it emulates the color of the sun at high noon. The place the sun is at the most in the long days of summer. The redder spectrum of the HPS emulates the fall, where the sun is at an angle and further away. Many have used that concept for decades successfully.
DJ Short hints at photo period should be played with. He was afraid of protecting trade secrets, and I am not sure why. I thought he was a seed seller not a weed seller. At any rate he thinks that the key to many strains is the photo period. Instead of switching from 24-7 to 12-12 you may want to do it in increments. My only thoughts on that is that once you throw a plant in shock it spends a good amount of time healing and if you do it in increments it reduces the likelihood of shock. I have not experimented with time yet, but I will with the new grow I am starting right now.
Generally speaking I don't buy any gardening product that has any marijuana leaves or anything obviously targeted to marijuana growers. That seems to keep my prices down substantially. I would never spend more for a bulb (HPS or MH) than what is used for generally high bay lighting at home stores. $20 seems to be about the fair price.
I have used HPS and MH mixed and I thought that was a good deal. I move my plants around daily under the lights in a rotating fashion. That is just my way of giving fair lighting coverage of the different lights. I am definitely no expert on growing I may add, but I hate to be taken in as gullible.
Plants needs Lumens and not so much heat. I seen a video where Jorge Cervantes was at an outdoor grow site in California. He has put a translucent cover over an outdoor crop to protect the plants from excessive heat. His declaration being, "They got all the lumens they needed, but the excessive heat was hurting the plants".
Many advisers in the growing community say that the blue spectrum in the MH bulbs is good for new growth as it emulates the color of the sun at high noon. The place the sun is at the most in the long days of summer. The redder spectrum of the HPS emulates the fall, where the sun is at an angle and further away. Many have used that concept for decades successfully.
DJ Short hints at photo period should be played with. He was afraid of protecting trade secrets, and I am not sure why. I thought he was a seed seller not a weed seller. At any rate he thinks that the key to many strains is the photo period. Instead of switching from 24-7 to 12-12 you may want to do it in increments. My only thoughts on that is that once you throw a plant in shock it spends a good amount of time healing and if you do it in increments it reduces the likelihood of shock. I have not experimented with time yet, but I will with the new grow I am starting right now.
Generally speaking I don't buy any gardening product that has any marijuana leaves or anything obviously targeted to marijuana growers. That seems to keep my prices down substantially. I would never spend more for a bulb (HPS or MH) than what is used for generally high bay lighting at home stores. $20 seems to be about the fair price.
I have used HPS and MH mixed and I thought that was a good deal. I move my plants around daily under the lights in a rotating fashion. That is just my way of giving fair lighting coverage of the different lights. I am definitely no expert on growing I may add, but I hate to be taken in as gullible.
Whichever one you have screwed in... or like the color of... or have a fresh one of... or is first in your hand...
ellinho
Active member
hey guys ... I am running 2x 400w MH right now. on the left side you can see an enhanced red spectrum mh, check the walls ... its 1st day of 12/12 ... Im planing on switching one bulb to HPS ... when do you guys think I should make the switch ... im guessing 3-4 weeks in ...?!
peace
peace
Talonted
Active member
thats when most of the transitional stretching is slowing back down. This trick is only really to control stretch as the MH is more intense, it keeps the plants from reaching until they begin to develop flowers. Generally all phototrophic annuals crave red spectrum when fruiting. MH usually produce shorter plants with airy nugs but the MH can penetrate the canopy further thus more developed sites but less weight to the flowers structure. A great way for optimizing "as i believe that is what is trying to be achieved here", is to use dual spectrum while favoring one over the other depending on the stage of cycle the plant is in!!
ellinho
Active member
if I remember this thread well enough there are some plants who dont really like to be flowered under just MH. this is a seed run and I can only predict how some plants will behave. I dont know if Im ready to take the risk and go complete MH. why not trow 1 HPS in there for 4 weeks? just for the lumen and the weight...?!
Talonted
Active member
Exactly, you dont want a pheno that is a slow grower under MH cause it will get no where fast, i believe that the halides producing more trichome is rediculous. Stress produces more trichome, bugs cause more trichome and Cold weather.
Question for all the "connoisseur" growers haha cause thats what you guys claim to grow with blue only.....
How does a blue light spectrum trigger the plants defense mechanism??? It doesn't, it only appears to the eye that there are visually more resin because the blue spectrum illuminates the clear glass like structures and reflects it appearing more vibrant and abundant. LEDs work the same way, shine light through a solid transparent and it will illuminate like fiber optics. every month we get someone asking this and its been 31 years since we decided that blue for growing and orange for flowering. mother nature grows shwagg compared to your indoor MH grows if she is using blue for grow and orange for veg like the rest of us.
What people mean when the plant grows tight; They mean internodal spacing, not tight or (dense) flower structure when talking about characteristics flowered under a single blue spectrum.
