By the way I live in Queensland Australia with a summer av. about 30 deg Celsius with 50 -60 percent humidity, it's not relevant to the question I asking but if anyone has more hints I'd listen.
Actually, it is! For instance, someone at 50° latitude, maritime climate, might just let his plants sprawl over 5 gal. black plastic nursery pots, and ripen tomatoes where everyone else has only green ones...
-R