Genetic Variability of Coffee (Coffea arabica L.) Germplasm in Biennial Bearing and Its Influence on Selection Efficiency

Arabica coffee is a perennial cash crop and highly affected by biennial bearing which disturbs farmers’ annual income world’s industries. Developing nonbiennial variety prominent in addition to applying field management practices. This study was conducted from 2012 2020 southwestern Ethiopia at Tepi Gera test the extent of genetic variability among Arabic germplasm understand influences bienniality on advanced selection. The pooled analysis variance revealed handiness yield bearing. moderate genotypic coefficient variation (10–20%), heritability (30–50%), high advance as percentage mean (>20%) were manifested Response selection efficiency negatively Early excluded 30–40% top yielders Selection four harvesting seasons 90% more efficiency. Thus, one has be conscious alternate nature lines during Both T43/11 T51/11 showed low Tepi. T33/11, T49/11, T55/11, T61/11 very both locations. These are promising could recommended for further improvement breeding programs.