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Study was initiated with the objectives to identify high yielder malt barley varieties. The trial has been conducted during 2014 main season and laid out on randomized complete block design with three replications. Analysis of variance was computed using SAS, 2002. At Dabat, result showed that highly significant difference among the varieties (p < 0.05) for all agronomic traits. At Debark and Wegera the analysis of variance indicated that highly significant to a significant difference among varieties at p < 0.05 for days to heading, days to maturity, plant height, spike length, thousand seed weight and grain yield, and seed per spike. The combined analysis of variance showed that highly significant difference among varieties for days to heading, days to maturity, plant height, spike length, and grain yield. The location also contributed the significant effect for all yield components except biomass and grain yield. The interaction of location by genotype showed the highly significant difference on days to maturity and plant height. The average heading days ranged from 70-81 and the average maturity days were ranged from 127-136. Among the tested varieties, IBON-174/03 and SABINI exhibited highest grain yield. The overall combined analysis indicated that IBON-174/03 and SABINI were high yielder and well adapted at the tested sites. Therefore those varieties are recommended for production in the testes sites, and similar agro-ecologies.

The experiment was conducted in Woreta, Metema, Pawe, Chewaka and Shire-Maitsebri from 2012-2014 main cropping seasons with the major objectives of early maturing, high yielding and pest resistance rice varieties for the upland rice production system in Ethiopia. A total of 20upland genotypes including one check were used in the study. The trial was laid out in randomized complete block design with three replications with plot size of 6.0 m2. The combined analysis of variance revealed significant difference on grain yield, days to maturity, filled grain per panicle and plant height (P≤0.001). Three genotypes (G16, G13 and G19) showed significant difference than the standard check on grain yield and gave grain yield advantage of 43.3 %, 42.3 % and 42.1 %, respectively. The genotype main effect plus genotype x environment interaction (GE) biplots were used to analyse and visualize pattern of the interaction component. The first two principal components (PC1 and PC2) of the GGE explained 55.02 % with PC1= 38.31 % and PC2=16.71 % of GGE sum of squares, respectively. Genotypes, G16 (ARCCU15 Bar-7-16-30-2-B-B) combined both high stability performance and high mean grain yield across the test environments and characterized as an ideal genotype to the tested locations. Following evaluation of candidate genotypes (G16, G13) and collecting farmer’s feedback, the National Variety Release Committee also recommended G16 as variety for cultivation in Fogera and other areas of similar cultivation conditions and this variety is under demonstration and popularization. &nbsp

In Ethiopia, barley is also one of the oldest cultivated crops and currently it is the fifth most important cereal crop next to maize, tef, sorghum, and wheat and the study was conducted at Debark, Dabat and Wogera in 2014/15 main season with the objectives of identify high yielder food barley varieties using seven improved food barley varieties including local check in Randomized Complete Block Design with three replications. At Debark, the analysis of variance revealed highly significant difference (p≤0.01) among treatment means for days to heading, plant height and thousand seed weight. Significant difference at (p≤0.05) also observed among treatments for Maturity days, spike length, biomass and grain yield. The mean grain yield ranged from 3403kg/ha-5143kg/ha. Highest mean grain yield was recorded from variety HB-1307 (5143kg/ha), EH1493 (4636kg/ha) CROSS41/98 (4184kg/ha) and lowest mean grain yield was recorded from variety AGEGNEHU (3403kg/ha). At Dabat, the analysis of variance showed that significant difference (p≤0.05) for days to maturity, seeds per spike and thousand seed weight. The rest parameters exhibited non-significant difference among varieties. At Wogera, the analysis of variance showed highly significant difference at (p≤0.01) among tested varieties for days to maturity, spike length, seeds per spike, thousand seed weight and grain yield. Longest maturity days were recorded from variety CROSS-41/98 (124 days), while shortest maturity days were recorded from variety AGEGNEHU (112 days). The mean grain yield ranged from 2015kg/ha-5008kg/ha. At Wogera highest mean grain yield was recorded from variety HB-1307 (5008kg/ha) followed by CROSS41/98 (4416kg/ha). Over locations combined analysis of variances showed highly significant difference at (p≤0.01) among varieties for all yield and yield components except days to heading. The interaction of location by variety indicated that significant effect on biomass and grain yield. The rest yield components not affected by the interaction of genotype by location. Over location grain yield results ranged from 3641-4680 kg/ha. Lowest and highest grain yield were recorded on Local check (3641kg/ha) and HB-1307 (4680kg/ha), respectively. Therefore, HB-1307 and CROSS 41/98 recommended for seed production at highland areas of north Gondar and similar agro ecologies.