@ Joe: It was (10 years ago-I remember Methane; and safety protocalls, and airing off times etc); ethylene I don't. Not saying time may not have caused a miss memory. The point I was trying to make is the fruit isn't ripening naturally-it's simply changing color; and that's why the bananas we get are woody, and not as sweet as they were when I was a child( sounding old here ;-) ). I wanted to know if the ripening in the sun is when the fruit gains its potasium, or if it develops in the fruit as it grows on the tree? You seem to have knowledge of the practice, any idea of the answere? Thanks I could not begin to wonder where to find out. I just know I cramp like a son of a bitch at times, take my salts[ potassium, mag, calc]; eat enough bananas to make a elephant choke, and just had a thought I hope one of you people out in the forum might know an answere to??