Yayis Rezene

Abstract The common bean (Phaseolus vulgaris L.) makes an important contribution to the human diet, particularly in Africa and Latin America. Because angular leaf spot (ALS), caused by the fungal pathogen Pseudocercospora griseola, is one of the most severe foliar diseases of the bean plant, an important priority is to identify genes encoding resis...

Ginger is an important perennial herb used for many purposes that has become a major spice crop across Ethiopia. Its production has been challenged primarily due to bacterial wilt disease eruption since 2012. The use of disease-free tissue culture generated seed rhizome as part of integrated management was considered as the best option to reduce th...

Ginger is used for many purposes and become a major spice crop across the country in Ethiopia. Production was challenged primarily due to bacterial wilt disease eruption as of the 2012 production season. The use of disease-free tissue culture generated seed rhizome as part of integrated management was considered as the best option to reduce the dis...

Angular leaf spot (ALS) and Anthracnose (ANT) are important diseases of common bean in Ethiopia. This study was conducted to pyramid resistant genes for ALS and ANT diseases into advanced line and to evaluate isolines against ALS and ANT using marker assisted selection in combination with phenotypic selection. The parent AND277 donor of Phg-1 and C...

Common bean (Phaseolus vulgaris L.) productivity is low in major growing regions of Ethiopia mainly due to drought, caused by low and erratic rainfall. A field experiment was carried out at Gofa in Southern Ethiopia, to assess genetic variability for drought resistance in forty-nine small red seeded common bean genotypes of both local and foreign o...

The present study was conducted on thirty-six common beans (Phaseolus vulgaris L.) Genotypes across six contrasting environments defined for its different soil fertility status and located at the southern Ethiopia. The genotypes were arranged in 6 x 6 triple lattice design and executed for two successive main cropping seasons with the objectives to...

Angular leaf spot (ALS) caused by the fungus Pseudocercospora griseola is one of the most destructive disease in Latin America and eastern Africa countries. The fungus, P. griseola is highly variable and a diverse sources of resistance genes is required to manage this economically important disease. The use of genetic resistance is the most practic...

Angular leaf spot (ALS) caused by Pseudocercospora griseola and common bacterial blight (CBB) caused by Xanthomonas campestris pv phaseoli X. campestris pv. phaseoli var. fuscans are the most economically important diseases of common bean production in Ethiopia. This research was aimed at pyramiding the Phg-2 R gene for angular leaf spot resistance...

Angular leaf spot (ALS) caused by Pseudocercospora griseola and common bacterial blight (CBB) caused by Xanthomonas campestris pv phaseoli X. campestris pv. phaseoli var. fuscans are the most economically important diseases of common bean production in Ethiopia. This research aims at pyramiding the Phg-2 R gene for angular leaf spot resistance and...

Common bean variety selection within its production environment is often challenged by the occurrence of significant genotype-by-environment interactions (GEI) in the variety development process. Grain yield performance of 16 navy bean (Phaseolus vulgaris L.) lines was tested in a multi-environment variety trial during 2010 and 2011 main growing se...

Ambericho (IG-51664) with a large and white seeded field pea variety was selected and developed by Areka Agricultural Research Center, southern Ethiopia. This variety was selected from the regional variety trial tested together 15 other test genotypes including local and standard checks at 8 environments. Finally the variety was officially released...

Common bean ( Phaseolus vulgaris L.) is grown in regions where water deficit during reproductive development significantly reduces yield. The objective of this study was to assess morpho-physiological response to post-flowering drought stress in small red seeded common bean genotypes of diverse origin under field conditions. Forty-nine genotypes we...

A Genotype x Environment (GxE) interaction study was conducted in Southern Ethiopia in 2007 and 2008 using 16 faba bean genotypes in a randomized complete block design with three replications. The objectives of the study were to determine the magnitude of G x E interaction and to identify high yielding and stable or specifically adapted genotypes f...

The objective of this research was to evaluate and to quantify the magnitude of the genotype × environment interaction effects on mung bean grain yield and to determine the winning genotype for the test environments. Seven mung bean genotypes were tested at three locations for over two years. The grain yield data for each environment (location year...