Genetic Progress for Yield and Yield Components and Reaction to bean Anthracnose (Colletotrichum lindemuthianum) of Medium Sized Food Type Common Bean (Phaseolus Vulgaries L.) in West Shoa Zone, in Ethiopia

Eleven common bean (Phaseolus Vulgaris L.) varieties that were released in Ethiopia from 1998 to 2014 evaluated as medium seeded food type varieties. The objectives of this study to: (1) estimate the genetic progress made 16 years breeding Ethiopia; (2) assess changes associated traits improvement and (3) reaction anthracnose [Clletotrichum lindemuthianum (Sacc. & Magnus) Briosi Cavara]. was conducted at two locations, Bako Gute during 2014/2015 cropping season a randomized complete block design (RCBD) with three replications. Days 50% flowering (DF), 90% maturity (DM), Grain filling period (GFP), Hundred Seed weight (HSW), Biomass yield (BMY), per plot (GY), Harvest index (HI), production rate (kg/ha/day), growth day (kg/ha/day) Anthracnose (1-9) scale data collected on basis Plant height, Number pods plant, seeds pod, plant grain data’s basis. Combined analysis variance showed highly significant differences among between test environments for hundred seed weight. variety by location (VXL) interaction biomass yield, harvest index, days flowering, period, rate. Regression mean performance both year varietal release positive relationship Gran (r = 0.08), 0.08) 0.4) but negative 0.04) disease severity 0.016). highest 3008.7 kg ha-1 Haramaya lowest 1708.8 Ada, an overall 2271.1 ha-1. annual 22.3 (0.31% ha-1), 0.56g 100 seeds-1 year-1, 0.006%, 0.19%, -60 year-1 weight, severity, respectively. Generally, slightly increased improvement. day-1 (90%) character explained more variation but, played major role did not respond significantly increment (-33%) than (-0.01%) stepwise regression results. due past sixteen (1998-2014) breeding. future crucial consideration will be managing disease, like class finally, (3008.7 SER- 125 (2954.8 SER-119 (2653.1 ha-1) recommended area.