Exceptional cup quality and drought tolerant, but highly susceptible to major diseases. Important variety for smallholder coffee growers in Rwanda and Burundi.

Appearance

Agronomics

information Year of First Production Year Three
information Nutrition Requirement Low
information Ripening of Fruit Unknown
information Cherry-to-Green-Bean Outturn Average
information Planting Density 1000-2000 a/ha (using multiple-stem pruning)
Additional Agronomic Information

Drought tolerant and resilient (e.g., can cope with low management and adverse environmental conditions).

Genetics

information Lineage Likely Typica-like genetic background.
information Genetic Description Bourbon-Typica Group (Typica-related)
History

Likely the oldest variety in Rwanda and still an important variety for smallholder coffee growers in Rwanda and Burundi.

The origin of Mibirizi is poorly documented. According to the Belgian coffee historian Edmund Leplae, it was introduced from Guatemala by the German administration in Rwanda in the 1910s. It was called “Guatemala” and would most likely have Typica lineage, because Guatemala was planted 100% in Typica at that time. Guatemala was distributed by the German colonial administration to Rwandan Catholic missions in the 1920s, including Mibirizi in western Rwanda. This population in Mibirizi was well maintained and was the source for the introduction of Mibirizi seeds to the germplasm collection at Mulungu in the Democratic Republic of Congo. It is very likely that Mibirizi plants were then mixed with French Mission plants (which belong to the Bourbon lineage; see SL34 for more) introduced from Kenya. Some breeding was initiated in the Mibirizi population and several lines were compared at the Rubona Coffee Research Station (near Huye, Rwanda) during the 1950s. However, it is not clear if any specific Mibirizi lines were released for farmers, or if the Mibirizi growing today originated from pre-existing Mibirizi plantations. Recent genetic tests have confirmed that Mibirizi is related to the Typica genetic group.

Availability

information Breeder None.
information Intellectual Property Rights This plant is in the public domain

Additional Images