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Go Back   Orchid Board - Most Complete Orchid Forum on the web ! > STYLES, SETUPS & ENCLOSURES > Growing Under Lights
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Old 02-08-2009, 04:32 PM
Magnus A's Avatar
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A rule of thumb.

Tuch the leaf, are they hotter than your hand you may have problems with burning the leaf. this will turn out in black soft wet areas.

Are they healthy light green, if yes the light is good. Are they dark green to little light.

If starting to turn yellowish, to much light but not nessesary burnt, very unlikely for catts under these kind of condition. usually the leafs are cooked due to heating before they have time to be depleted of Photosystem II due to irradiation damage
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  #12 (permalink)  
Old 02-08-2009, 05:05 PM
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Thanks, Magnus. I have been feeling the leaves and they have been consistently cool to the touch, though not by much so I'm not too worried about burning at this point. The leaves do seem to have turned a lighter shade of green, especially on the new growths.
Thanks,
Dan
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