Coffee is the main Ethiopia’s most important agricultural export crop, which providing about 25-30% of foreign exchange earnings. The estimation stability performance cultivars becomes to detect consistently performing and high yielding genotypes. Eleven Arabica coffee genotypes were evaluated in southwestern part Ethiopia across four locations for two consecutive years (2014/15 - 2015/16). obj...

Biplot analysis has been used for studying genotype × environment interaction (GE) or any two-way table. Its descriptive and visualization capabilities along with the availability of userfriendly software have enabled plant scientists to examine any two-way data by a click on a computer button. Despite widespread use, the validity and limitations of biplot analysis have not been completely exam...