July 2018
Limitations and strategies to enhance biological nitrogen fixation in sub-humid tropics of Western Ethiopia
Currently, inorganic nitrogen fertilizer becomes a serious threat to the environment and human health. Thus, finding of alternate source of nitrogen is a viable option in assuring of sustainable agricultural system. Biological nitrogen fixation is a critical and key process in sustainable agricultural systems in tropical soils, which are frequently deficient in N and susceptible to leaching of plant nutrients. This...
July 2018
Genetic analysis for grain yield and yield related traits in maize (Zea mays L.) inbred lines in line × tester mating design
Maize is one of the most important cereal crop widely grown in the world. Maize crosses along with similar maturing checks were evaluated at Hawassa in 2015-2016 cropping season to understand the nature of gene action governing yield and its attributes through line × tester analysis and to study genetic contribution of line, tester and the interaction of line × tester to total variation. The experiment was...
July 2018
Adaptability evaluation of common bean (Phaseolus vulgaris L.) genotypes at Western Ethiopia
Fifteen common bean genotypes were tested at four locations with two management regimes of lime treated and lime untreated acidic soils. The experiment was laid out in split plot design with three replications during 2016/17 cropping season. The combined analysis of variance over environments showed significant differences among environments, genotypes, genotype x environment interaction (GEI), management, genotype by...
July 2018
Micro-propagation of Colocasia esculenta (cv. Bolosso I) from corm and sprout tip explants
Taro (Colocasia esculenta L.) is a perennial, aquatic and semi-aquatic species, member of the family Araceae grown for its edible tuberous root. The application of conventional propagation techniques for taro could not produce the high demand and quality planting materials due to its low productive capacity and diseases transmission. Therefore, this study was carried out to develop micro-propagation protocol for...
July 2018
Combining ability and gene action of hot pepper (Capsicum annuum L.) genotypes in Southern Ethiopia
This work identifies the combining ability of 10 hot pepper (Capsicum annuum L.) parents and 45F1 hybrids obtained from 10 x 10 half diallel. The work aims to identify the parents with the best general combining ability (gca) and crosses with high specific combining ability (sca) for yield, quality and nature of gene action involved. The study was conducted during 2015-2016 at six environments in Southern Ethiopia using...
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