Genotype by environment interaction effect on some selected traits of orange-fleshed sweet potato ( [L].Lam).

In Ethiopia, sweet potato is the 2nd and the most important root crop after Enset [ (Welw) Cheesman]. Even though widely cultivated in Ethiopia, the occurrences of wide agro-ecological variability are the key challenge for the selection of high yield and stable orange-fleshed sweet potato genotypes due the high interaction of genotype by environment effect (GEI). Until to date, the research reports on GEI and stability of orange-fleshed sweet potato genotypes under Southwest and West of Ethiopian conditions is very limited.

Biomolecules from Serratia sp. CS1 indigenous to Ethiopian natural alkaline lakes: biosurfactant characteristics and assessment of compatibility in a laundry detergent.

In this study, the biosurfactants (Bio-SFs) producing bacteria are screened from the selected alkaline lake of Ethiopia, and the potential bacterial strain and their produced Bio-SFs are further characterized. In an initial screening, 25 bacterial isolates were isolated, and among those, the bacterial isolate assigned as CS1 was identified as the most potent producer of Bio-SFs using a subsequent characterization process. The CS1 strain was identified as Serratia sp.