Truth Seeker
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yea just make sure that you keep it at 18/6 or even 16/8 if you want more of a stretch!!!
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Edit: when i think of 'light fight' i think of a guy with a 4 ft florescent strip and a guy with a hps ballast going at it in a 50's style type of movie knife fight lol
Wow you think a 45,000 lumen 400w HPS is equivalent to 8 25w CFLS? Sorry friend but you might want to do some math...it would take around 28.125 CFLS to equal the same lumens as the 400w hps
First, the plants grow in a wide temperature range and humidity. In the wild, there is air movement and the roots are in the ground, two key elements to the answer to the question.
As long as the roots stay below 80 degrees and above 50 degrees F you are fine. The plant can take well over 115 if the roots are not overheated.
The humidity issue can be a problem in flower, but air movement and exchange is the key to this also...just like nature's wind. I had a week of 90% humidity and was very worried I would get bud mold on my almost done plants. Fortunately my fans exchanged enough air that there was no stagnation to allow mold to form.
So, there is no 'ideal' temperature or humidity, but there are factors that must be considered during a grow.
Temperature and relative humidity are perhaps the most common measures of atmospheric conditions, especially on radio and television forecasts. The reason is that they are probably the easiest to understand at first glance.
Relative humidity, describes how close the air is to being saturated with water. When the relative humidity is 100%, the air is completely saturated (and it is usually raining outside). The lower the percentage is below 100%, the drier the air is.
To date, there has been little positive evidence to correlate the relative humidity with marijuana's potency. However, a slightly lower humidity, in the 50 to 70 percent region, does appear to produce plants with slightly more potent buds than those grown with a higher relative humidity.
A dry atmosphere seems to produce more potent plants because, when the humidity is about 50% or less, plant development is more compact, and the leaves tend to have thinner blades. Conversely, when the air is humid, plant growth is faster, and the leaves develop luxuriously, with wider blades. The advantage to the plant is that the wider blades have more surface area and can therefore transpire more water. So, plants grown with a lower relative humidity have thinner leaves and use less water. The higher potency may be due to the less leaf tissue for a given amount of cannabinoids and resin glands.
The temperature also influences the shape and size of the plant and leaves. At higher temperatures, the leaves tend to grow closer together and under cooler temperatures, the leaves are larger, have wider blades, and are spaced further apart. Warmer temperatures seems to yield slightly more potent plants for the same reason as a drier atmosphere does.
However, differences in potency caused by any of the growth factors (light, nutrients, water, temperature, humidity, etc) are small compared to differences caused by the variety (hereditary genetic structure) and full maturation. For example, the humidity in Jamaica, Colombia, Thailand, and many other countries associated with fine marijuana is relatively high and averages at about 80 percent.
So, you should try to keep the atmosphere as dry as possible. The atmosphere in heated or air-conditioned homes is already dry (usually about 15 to 40 percent). For this reason, many growers sow their seed so that the plants mature during the winter if the home is heated or in mid-summer if it is air-conditioned.
Hey Princess,
I found two very good journals that answer your question, but first I want to apologize to HighFlyin5 for being such a hothead! Sometimes I spend hours collecting the data for my posts. One of my recent posts on my own journal took several days to research and 6 hours just to cut, paste and edit. So when someone contradicts me (especially if they're right!), it drives me nuts. Then I have to check my research or calculations again. So, sorry, man. No hard feelings, I hope! Peace out.
I agree we are guests. I apologize princess...and for the record I never disputed the efficiency of hps in general just the 100w hps does not put out enough lumens to justify buying vs cfls therefore cfls are more cost efficient. As it would be more costly to purchase the hps ballast and bulb more or less was my point.
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