photoperiod

04-17-2000, 07:11 AM

I read somewhere that at a certain age the plant becomes unable to respirate without a dark period of at least 4 hours. Any truth to this? If anyone with a 70 watt hps is reading... How did you make your reflector thing?

04-17-2000, 12:43 PM

I've heard of growers using 24 hours of light, and I've heard of growers using the 18/6 on/off cycle and both apparently work all right. I guess that I'd go with the 18/6 cycle once the plants are well passed the seedling stage. I use a 70 watt sodium to start seedlings, but it's a outdoor wallmount type, and it already had a reflector built in.
Peace, Observer

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