I was thinking more about my previous comment regarding UV light, and came to the same conclusions..... you're right, Della. Any possible detriment would be insignificant.
I've seen the terms "positive" and "negative" geotropism used, and the way I learned it was "geotropism" was all encompassing. But once again, I find that Americans have distanced themselves form the rest of the world, who seem to make a distinction. Everything you ever wanted (and didn't want) to know about geotropism:
http://www.biologie.uni-hambur...
And site you could spend days in.
