Abstract

Field experiment was conducted at Chencha Woreda with the objective of evaluating faba bean varieties for better yield and chocolate spot disease resistance during 2015 main cropping season. Ten improved faba bean varieties and two local controls were evaluated in randomized complete block design (RCBD) with three replications. Field performances of varieties were evaluated for grain yield and yield parameters on sampled plant. Chocolate spot disease severity was recorded following 1 to 9 disease scale and used for area under disease progress curve (AUDPC)  calculation. There was significant (P < 0.05) difference among the varieties for yield and resistance to chocolate spot disease. Higher yield was recorded in Moti, Gora and Wolki varieties while low yield was recorded from Hachalu and Degaga. Maximum chocolate spot severity and AUDPC were recorded on Baela, Degaga, Gora and Gebelcho varieties while minimum disease severity and AUDPC were recorded from Tumsa, Moti, Hachalu and CS-20DK varieties with a mean severity of 29.63, 24.69, 25.93 and 25.93%, respectively. Moti, CS-20DK, Hachalu and Tumsa varieties showed moderately resistant to chocolate spot disease severity while Dosha was moderately susceptible varieties. From the result it could be concluded and recommended that varieties Moti, Gora and Tumsa are promising at high lands of Chencha, and may used them in larger plot for identification of adaptable variety.

Key words: Faba bean, varieties, yield, disease severity, chocolate spot.