Re: Greetings from Bangkok ...
Are you pursuing other specie interests beyond bananas? There are quite a number of research projects around as well. Let me know more specifically what you are looking for and I can work up a short list of sites with some friends who are far more expert than I. There isn't much to be found within the city other than some commercial TC labs serving mainly the orchid exporters and cut flower farms.
I'll be happy to do whatever I can to facilitate your trip.
Regards/Roger, in Bangkok