Abstract: There has been no work conducted in Ethiopia to evaluate and document the progress made in improving the genetic yield potential and associated traits of soybean varieties by grouping in to early, medium and late maturity classes. Hence, soybean varieties released/registered in Ethiopia from 1974 to 2015, were grouped in to early (7), medium (7) and late (11) and evaluated at Bako to determine the genetic gain in grain yield potential and associated traits in the last 38, 31 and 12...
Abstract: The yield performance of sorghum cultivars is highly influenced by environmental factors and genotype x environment interaction; therefore interaction is the major concern to plant breeders to develop improved cultivars. Field experiment was conducted to evaluate striga resistant sorghum genotypes during the 2014 cropping season at Fedis,Meiso, Kobo,Pawi and Humera. The materials used in the study consisted of eight striga resistant sorghum genotypes representing the types widely g...
Abstract: The present investigation was carried out in total of 100 sorghum [Sorghum bicolor (L.), Moench] genotypes. The material for investigation consisted of 84 inbred lines, 15 parental lines and one standard check (Melkam) were evaluated using 10x10 simple lattice designs at Sheraro, Northern Ethiopia in 2017 to evaluate sorghum inbred lines for agro-morphological and grain quality traits and to determine the association, direct and indirect effects of yield, yield components and quali...
Abstract: Grasspea is one of the principal grain legumes in Ethiopia adapted to adverse climatic and edaphic conditions. It is high yielding and the only available food source during drought times. However, the grain contains a toxin, ODAP (Oxalyl diamino propionic acid) which causes paralysis of legs when consumed as a stable food for more than three months. In addition, the crop has got less research attention compared to other legumes. As a result, very limited information is available on...
Abstract: Ethiopia is claimed to be center of diversity for cowpea. The crop being the most drought tolerant, and could serve the country to overcome the recurrent drought problem. However, the yield is very low due to the less attention given to develop varietes. This research was aimed at evaluating the stability of cowpea genotypes and estimating the magnitude of genotype, environment and genotype by environment interaction (GEI) effect on stability of grain yield. Sixteen cowpea genotype...
Abstract: Malt barley (Hordeum vulgare L.) is one of the most important industrial crop and highly demanded due to the expansion of brewery factories in the country and the unique nature of the grain for malt. However, its production and productivity is very low compared to other countries due to limited numbers of high yielding malt barley varieties, partial use of agro-nomic and production and low genetic base in north eastern Ethiopia. The objectives of this study were to assess the genet...
Abstract: The cultivated sesame (Sesamum indicum L) is an annual plant of the Pedaliaceae family and is considered as one of the oldest crops cultivated by man, having been grown in the Near East and Africa for over 5,000 years for cooking and medicinal needs. Among the major oil crops grown in Ethiopia, sesame seed has a unique position mainly due to its adaptation to arid and semi-arid low land environments. Yet, the insufficient genetic information of Ethiopian sesame populations hinder t...
Abstract: Wheat is one of the major cereal crops produced in Amhara Regional State. However, productivity of wheat in the region, particularly in Wollo is low due to various production constraints. Several improved bread wheat varieties were developed and released from federal and regional research centers. Information on genotype by environment (GE) interaction and yield stability of recently released bread wheat varieties under the conditions of Wollo were scanty. Hence, this experiment wa...
Abstract: Micronutrient malnutrition has becomes the most serious challenge of humanity and most commonly lacking in human diets are Fe and Zn. Biofortification sustainably can reduce deficiencies by increasing Fe and Zn in staple foods. Genotype × Environment interaction (GEI) indicates differential reaction of genotypes to changes in environmental conditions; it becomes more important as the differences in production environment become diverse. Thus, this study was conducted to analyze GE...
Abstract: Sorghum is one of the major staple food crops grown in the poorest and most food insecure regions of Ethiopia. It is typically produced under adverse conditions, such as low input use and marginal lands. Its production is mainly constrained by the prevalence of drought; that is, the soil water deficit during grain filling stage of sorghum is considered among the major causes of grain yield loss for sorghum production in the dryland of Ethiopia. Factorial combination of treatments (...
Abstract: Chickpea (Cicer arietinum L.) is among the major pulse crops in Ethiopia. Despite of its importance the national productivity is low as compared to the potential of chickpea. As first step for the improvement of the crop, this study was conducted to assess the genetic variability and to estimate the association of traits, and determine the direct and indirect effects of yield related traits on yield of kabuli chickpea genotypes. Twenty five chickpea genotypes were evaluated in 5 x ...
Abstract: The highlands of Bale is known with potato production, but the productivity of the crop is low due to the growing of low yielding genotypes susceptible to late blight. This needs to develop varieties with high yield and resistant to late blight. Therefore, this study was conducted to evaluate 24 potato genotypes with the objective of assessing the nature and magnitude of variability for tuber yield, yield related and late blight resistance traits, and association of tuber yield wit...
Abstract: In plant breeding programs knowledge of nature and magnitude of variation existing in available plant breeding materials, interrelationships between quantitatively inherited plant traits and their direct and indirect effects on grain yield is of great importance. To generate such objectives, a field experiment was conducted in 2014 cropping season at Ofla district, Northern Ethiopia. 26 bread wheat genotypes were used in Randomized Complete Block Design with three replications for ...
Abstract: Cowpea [Vigna unguiculata (L.) Walp] is the world’s most important protein source where it is grown for forage, green pods, and grains. Stability performance of cowpea genotypes across contrasting environments is essential for the successful selection of stable and high yielding genotypes. Genotype by environment interaction is one of the leading factors that disturb the stability of genotypes. Therefore, this study was conducted to estimate the effects of genotype, environment, ...
Abstract: This study was conducted to assess the genetic variation of 100 durum wheat genotypes under water logging condition, determine associations among agro morphology and quality traits of durum wheat, and also to assess the degree of genetic diversity among the genotypes. The experiment was laid out in 10 x 10 simple lattice design during 2017cropping season at Debre Zeit and Chefe Donsa research sites. The analysis of variance showed that mean squares due to genotype and location by g...