CFL vs. HPS

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Plants like a spectrum. Sorry Zcomp. We usually see eye to eye, but I got to disagree about the green light thing. I realize I'm in the minority here, and I used to believe as you, but I've done a lot of reading lately about actual plant physiology rather than what stoners are saying. There is a reason for every color of the visible and invisible spectrum. Not all 16 billion or whatever, but they all work together like individuals in an ant farm or bee hive. Get rid of the ants that carry out a certain function, and the whole colony dies or at least suffers some. Green light has more uses than to bounce off plants.

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I agree, plants like full spectrum light....even a little green too...:thumbsup:

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Originally Posted by Opie Yutts

CFL's are wonderful, and according to the numbers they're just slightly less efficient than HID. I've seen many wonderful grows that used only fluorescent light. You just have to remember the correct colors for the stages of growth, and preferably have a mix. Plants like a spectrum. Sorry Zcomp. We usually see eye to eye, but I got to disagree about the green light thing. I realize I'm in the minority here, and I used to believe as you, but I've done a lot of reading lately about actual plant physiology rather than what stoners are saying. There is a reason for every color of the visible and invisible spectrum. Not all 16 billion or whatever, but they all work together like individuals in an ant farm or bee hive. Get rid of the ants that carry out a certain function, and the whole colony dies or at least suffers some. Green light has more uses than to bounce off plants.

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I'm not disregarding you but, Could you point me in the direction of the info you speak of? I thought I was pretty thorough in researching exactly what my girls need. I say "My girls" because MJ is a diff. plant than most. Alot of info on plant physiology sounds great until I hit the end of the article to find that this info is based on say.. tomato's or lettuce. I've been forced to weed through this info and only accept the info that corresponds to MJ.
For instance, Tomatoes reflect red, Which means that green must be absorbed (and used) by the fruit. Whereas MJ is green in every corner. Since our beloved is illegal, We tend to be very short on studies.
And about the HPS, you know me, I had that huge CFL fixture worth 246W of CFL power. I replaced that with 2 150W HPS and watched the same exact room cool down an average of 10 degrees. Also look at dutchpimps pics. Imagine(or go find the chart) the CFL spectrum includes 3 sharp spikes in the 3 color zones. Not any good in PAR terms(which is the only term a horticulturist cares for), There is a term for the natural curve in light spectrum that "spark-type" bulbs emit. I will try to find the CFL spectrum pic I had on my Comp before the clean install.

Well I'm a little strapped for time right now and am not able to go back over the bookmarks in 3 computers, looking for the green spectrum info. However I can give you a couple quotes I copied from various sources. I just put down random quotes concerning what colors a plant needs, and I don't know where each quote came from. I have read several things that indicate that the colors we usually think of as not necessary have a big influence on color, aroma and taste of fruit and flowers. Look up carotenoid and flavinoid to get you started.

Oops, clicked the wrong button. Damn this new harvest. Anyway there are many more things involved in plant growth than chlorophyll. Flavinoids provide antioxidants and vitamins, and come in green, yellow and orange, as well as some other colors.

The addition of 24% green light (500 to 600 nm) to red and blue LEDs (RGB treatment) enhanced plant growth. The RGB treatment plants produced more biomass than the plants grown under the cool-white fluorescent lamps (CWF treatment)

Plants use wavelengths between 400-700 nm to carry out photosynthesis, called photosynthetically active radiation (PAR). Within that range there are photosynthesis response peaks at 440 nm (blue light) and 660 nm (far red). Of the potentially usable PAR falling on an upper leaf of a plant, about 80% is absorbed. The remainder 20% is mostly in the green wavelengths and most is transmitted down to lower leaves in the canopy, the ground below or reflected back.

Higher plants seem to require all the spectrum bands, except for the band wavelengths 800 nm, of the sunlight coming on the Earth's surface.

3) Maximum photosynthesis of canopies is possible only under combinations of blue, green and red radiation. Any kind of combinations of two of these wavebands or with only one spectral region, always reduces productivity.

The action spectrum for the initiation of fruiting (primordium formation) in Favolus arcularius was determined on the equal response basis. The detectable effect of light was observed in the region between 350 to 560 nanometers, showing six distinct peaks at 374, 398, 424, 446, 480, and 514 nanometers. In otherwords, purple, blue and green.

All these quotes are from reputable sources like the Dept. of Agriculture and stuff. Not just people blowing photons out their ass.

Dutch Pimp,

May I please have those buds hanging in your shower? Wow. I didn't think they were anywhere near that big until I took a closer look. Niiiiiiiiiiiiiice.

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Originally Posted by Opie Yutts

Dutch Pimp,

May I please have those buds hanging in your shower? Wow. I didn't think they were anywhere near that big until I took a closer look. Niiiiiiiiiiiiiice.

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Sorry...the white widow's colas are my stash for '08...:D...at least until the papaya seedlings finish....:thumbsup:

why does it look as if all the leafs in that pic are dead or are dieing that some kind of new dutch thing kill all the leaves just wandering if i'm doing something wrong cuase close to 90% of the leaves on my plants are green at harvest time

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Originally Posted by ice#1

why does it look as if all the leafs in that pic are dead or are dieing that some kind of new dutch thing kill all the leaves just wandering if i'm doing something wrong cuase close to 90% of the leaves on my plants are green at harvest time

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The way I grow white widow...all the fan leaves and some of the bud leaves get the nitrogen sucked out of them. Nothing green on the plant except the buds at harvest time, according to the trichomes...10% amber...:thumbsup:

Yeah, looks pretty normal to me. The ones that are still green at harvest time - now those look abnormal.

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Originally Posted by Zcomp

I cant tell you any what ifs.. I can only tell you that I have read enough articles about these busts going down.
During "discovery" you eventually find out who originally started the ball rolling, In these cases it turns out the ebay/paypal team are hard at work reporting suspicious activity. They probably get some type of cash "reward". Without rats this country would have no convictions.
I'm not against reporting crime, just against the punishment.
IF you order from ebay, be careful where you ship and what account you use.

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I'm trying to be as inconspicuous as possible. My thoughts on these statements are conflicting. While possible, do you really think that the feds are going to go thru all the cost and trouble of staking out my house and securing warrants, just because I bought 1 hid light thru ebay (htgsupply's ebay store)? Even if somebody is watching, I do not sell, and have only a small grow setup for personal use, that only 3 people know about, and it is for our use only. We do not have connections, no suppliers, nobody to give up, and all 3 of us have clean criminal records. If I was a higher up at a dea office, then I would not waste my time, and very few judges would grant warrants based on 1 LEGAL light purchase. Now I understand if someone puts 8 1000 watt hps, 4 large hydro setups, and 3 "how to grow cannabis" books on their credit card and have it sent to their house, but even then without some kind of snitch testimony (ebay and paypal do not count, they have VERY circumstantial evidence at best!) I think that the ebay paypal thing would be used as supplemental evidence if you had a guy you sold to go down and sing, but they are probably not watching every ebay transaction looking for small purchases that MIGHT POSSIBLY be used for cultivating cannabis. I am all for playing it safe, and buy all my nutes, hydroton, net pots etc thru a hydro shop with cash, and i stop during work in my work truck, so no tails home, as I usually drive around from town to town for hours after a purchase. But my ph meter and tds meter were bought thru ebay, and I plan on getting a hid thru htgsupply's ebay store. Not only do I doubt that that would raise suspicion, but if the HID purchase was the only thing they had, my lawyer would piss on them in court. I also do not smoke and drive, nor do I transport. If I want to go somewhere stoned, I do it at home before i leave and if it wears off, oh well. Plus, I think my small grow op is a less conspicuous plan than meeting with a known pot dealer every week or two, and my phone # in his phone and his in mine. Just my opinion, anyone who has actually had trouble thru ebay respond, but I'm sure most of these cases was just supplemental after they were already being watched due to snitch testimony!