Light Disruption???

[Royal]

Originally Posted by camille1585

I think your theory on equatorial plants is right as well, that moisture and temperature might be more important blooming triggers. But if we only look at photoperiod and nothing else,those further away from the equator respond to changes in photoperiod and those near the equator respond to constant photoperiod.

Of course, maybe both of us are completely off target or maybe making such generalizations is wrong!

I'm probably way off!

My thinking is that with the constant being the photoperiod, a plant must rely on other factors. There would be less of a chance that an equatorial orchid would rely on, and therefore be affected by, day length. Conversely, if the photoperiod is ever changing, a plant could theoretically become accustomed to, or rely on short or long days as a bloom signal.