A vigorous, productive tall Bourbon selection with very good cup potential at altitude, common in Rwanda and Burundi.
Bourbon Mayaguez 139 is a tall, bronze-tipped, large-beaned Bourbon-related selection with a Bourbon-like genetic background. It is an important variety in Rwanda, where it was released by the Rwanda Agricultural Board, and is also common in Burundi. It is susceptible to leaf rust and coffee berry disease.
Field notes
- i
The name is thought to reflect a route from Central America through the USDA germplasm collection at Mayaguez, Puerto Rico.
- ii
It reached the Mulungu collection in the Democratic Republic of Congo in the 1930s and was brought to Rwanda in the early 1950s.
- iii
BM139 and BM71 were selected from the same introduced population and behave very similarly in the field.
Sources · 1 Every sentence here was checked against a source we read. Taste notes are what guides describe, not promises about your bag. Last revised 2026-11-11.
- WCR Arabica Varieties Catalog: Bourbon Mayaguez 139 · World Coffee Research