Tef is one of the most important staple food crop cultivated throughout the country. Twenty (20) Tef varieties (including local check) were brought from Debre Zeit Agricultural Research center and planted in randomized complete block design (RCBD) with three replications at Wulbareg and Dalocha woreda for two consecutive years. The study used Plots size 2mx2m with 1.5m, 1m distances b/n blocks and plots, respectively. The result of analysis revealed significant differences among genotypes in biomass and grain yield. Based on days to maturity, Tsedey (76 days) was found to be the earliest maturing variety with relatively higher grain yield while Ziquala (96 days) was late matured than all other varieties. Quncho and Kora performed best and high yielder in good rainfall spreading season (rain fall distribution within a year suitable land preparation and tef growth) while Tsedey performed better in low rainfall spreading season.

Keywords: Adaptation; Genotype, Tef