Station: Sendusu (Uganda)
He collected worldwide banana and plantain varieties that laid the basis for the International Transit Centre of banana, Leuven, Belgium. In 1990 he became Senior lecturer at KU Leuven and by 1997 full professor. His Laboratory of Tropical Crop Improvement hosts the world banana collection, Bioversity International, with collaborations in 103 countries. Cryopreservation techniques were developed for banana and later for another 27 plant species. His group also developed the first transgenic bananas in the early 90s with field tests in two locations.
In 1995 he became a member of the Royal Academy, Belgium, and Honorary Research Fellow of Bioversity International. He received several international awards and a chieftancy in Nigeria. Since 2013 he leads the Musa (plantain, matooke, mchare) breeding at IITA.