Triggering flowering by manipulating hours of light
Was thinking last night about what causes orchids to flower. Some require drops in temp, some just "know" when to bloom, but I was wondering how they know. I assume it's some kind of shortened period of light to trigger bloom - is that correct or no?
Can you just give same amount of light all year, since most of the orchids are from some kind of tropical area... I assume they get around 12 hours a day all year.
Can you give them more light than that and expect more growth? Is there a point of no extra return for the extra light? Can they grow under 18 hours of light a day fine?
I know with indoor lighting, they receive the same amount of FC all day long, so does that mean they can have shorter "days" indoors (6 or 8 hours) and still receive the same amount of light as outdoor plants receive in a 12 or 14 hour daylight?
Hopefully that makes some sort of sense... had to get it out quick - hahaha.
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