MusaBase is a breeding database implementing tools to manage data and next-generation breeding protocols based on high density marker data for banana species used as major food sources in Africa.
The MusaBase manual is available here. It was written for CassavaBase but MusaBase is based on CassavaBase, so the manual applies to MusaBase as well.
For frequently asked questions, see the FAQ page.
SlideShare has a collection of slide decks about the related SGN and CassavaBase databases.