Quote:
Originally Posted by Ross
Ramon's intent is still valid, however, in that you should be able to measure Foot-candles (or whatever) at the leaf surface, no matter the type of bulb. I believe he is after a list of absolute Foot-candle needs by plant group or species.
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Hi Ross, the idea is not a list of absolut Fc needs by plant group or species, but a compilation of what is given already in different sources and the own experience OB Members have.
I mentioned at the beginning of the thread, that there is several ways to measure light intensity, that there is confusion with semi-shade, shade, full sun, etc, and teh idea of the trhead is to clarify this rather vague information. If someone can measure Fc/Lux that's excellent and make everything easier, if someone cannot do it, but read someone has success with 500Fc, that's a start point to search what exactly is 500Fc and how much light that could be. We have bodaciousbonsai's thread who give a clear example: "400-500Fc at 4' below a 54 watt ho t5 unit 8 bulbs system" Anybody, can then have a better idea of what 500Fc means (and that's much better than saying semi-shade)
you normally find in the bibliography and the web: use this for A use this for B use this for C. I think that's the dangerous information, as it is always given as absolut unique source of true. What most people need, especially when growing orchids, is a "Use this for A as it works for me under this conditions, but use that for A, as it works for thi sother guy at these other conditions". That's exactly the information I wan to compile here: what is given in the bibliography and the web, and what is your own experience.
You all give this information here in OB in different threads, why not compiling it in one? If this is bad, as I said the whole OB is bad, because you provide the information anyway...
as I said guys, this are my two cents, and still think is a good way to clarify the light issue for everybody...