Abstract: Genetic analysis for traits of interest in crop varieties is necessary in designinig appropriate breeding methods. Several varieties of groundnut have been recommended for cultivation in Ethiopia; however, little genetic information has been generated so far. Therefore, this research was conducted with the objectives of assessing genetic variation and association of traits in groundnut varieties; estimate genetic progresses made through decades of breeding efforts and determine eff...
Abstract: The lowland areas of Ethiopia have considerable potential for increased oil crop production including groundnut. In Benishangul Gumuz Region, groundnut is cultivated in various zones and woredas under rainfed condition. However, due to insufficient improved groundnut varieties found in the region the productivity was low. Testing genotypes for the presence of variations and generation of genetic information is the first step in plant breeding to develop varieties for the targeted a...
Abstract: Landraces constitute the basic material for developing any variety or hybrid. Ethiopia has a large number of Desi chickpea landraces cultivated by the farmers through traditional method of selection over centuries. However, chickpea yield in Ethiopia is still below the realizable potential. And the amount and regional distribution of chickpea diversity in the country is relatively unknown and exploitation of valuable local diversity for breeding higher yielding varieties is hindere...
Abstract: xvi GENOTYPIC VARIATION FOR YIELD AND QUALITY CHARACTERS IN BREAD WHEAT GENOTYPES IN CENTRAL TIGRAY, NORTHERN ETHIOPIA ABSTRACT Development of wheat varieties for high yield with desirable grain quality for different agro ecologies of the country is important. Estimation of variability is critical for variety development. This study was conducted at Axum Agricultural research center in 2016/17 main season to assess the extent of genetic variability of wheat genotypes for yield, yie...
Abstract: Conducting multi-location trials along with the commercial varieties and genotype by environment (G x E) data analysis are vital to breeders to develop superior genotypes and to meet the challenges posed by environmental factors. This research was undertaken to evaluate maize hybrids for yield and yield related traits, assess the effect of G x E on grain yield, and determine the yield stability of hybrids across major maize growing areas of Ethiopia. A total of 24 maize hybrids inc...
Abstract Rust (Uromyces appendiculatus) (Pers.:Pers.) Unger., is among the most destructive pathogens constraining the production of common beans (Phaseolus vulgaris L.) in Kenya. The study's objectives were to (i) determine the prevalence of bean rust in central and western Kenya; (ii) evaluate common bean genotypes for host resistance to rust disease under field and greenhouse conditions; (iii) characterize the Ur gene in a French bean breeding line MU#13; and (iv) identify SSR markers lin...
Abstract: Thirty six field pea genotypes were evaluated at two locations in the central highlands of Ethiopia during the 2014 main cropping seasons. The objective of the study was to determine the magnitude of genetic variability and association of characters for yield and yield related traits. The study was conducted using a randomized complete block design with three replications. Data were collected on 15 quantitative traits and subjected to the analysis of variance, correlation and Mahal...
Abstract: Assessing the causes and magnitude of variation is the key to success in crop improvement program. This study was therefore conducted to study the genetic variability and association among yield and yield related traits of [Ipomoea batatas (L.) Lam] accession from East and West Hararge. Accession were planted in 10/4/2020 at Haramaya University Hirna research center, Eastern Ethiopia using Randomized Complete Block Design with three replication and evaluated for 12 agro-morphologic...
Abstract: Twenty five maize (Zea mays L) genotypes were evaluated in randomized complete block design for genetic variability and association between agronomic traits at Haramaya University at Chiro campus. Data were collected on 20 quantitative traits. The analysis of variance showed that the mean squares due to genotype were highly significant (p
Abstract: Sesame (Sesamum indicum L.) is considered to be an ancient oil seed crop to generate high quality edible oil having nutritional and health related value but still at an early stage in breeding. Its chromosome number is 2n=26 and it belongs to the Pedaliaceae family and having significant economic value globally as well as in Ethiopia.With the objective of broadening the gene pool of sesame an experiment was conducted in the genetics and molecular biology laboratory as well as agric...
Abstract: Chickpea (Cicer arietinum L.) is a mulit important legumes in Ethiopia; however, despite of all the multi benefits of chickpea, its productivity has remained low in Ethiopian agriculture than the attainable yield (5 tons/ha) under improved and good management condition. Reasonable seed yield in chickpea could be achieved by using improved genotypes with appropriate agronomic practices. The investigation of improved genotypes requires a good breeding program, which usually depends o...
Abstract: Black cumin (Nigella sativa L.) is an annual spice used for flavoring of food, cosmetics and other industrial products, besides oleoresins and essential oils are valuable sources for health care used for medicinal purposes in Ethiopia. However, variety development was started recently and mainly dependent on introduction of breeding materials. As first step for the improvement of the crop, this study was conducted to assess the genetic variability and to estimate the association of...
Abstract: Okra is considered a minor crop and has not given research attention in Ethiopia. Therefore, a key strategy to adapt to a changing climate is the development and promotion of underutilised crop species. Thus, this research was conducted to assess the genetic diversity, genetic variability, heritability, genetic advance and association of traits of okra genotypes using morpho-agronomic traits and biochemical contents. A total of 36 okra genotypes (27 landraces and 9 introduced comme...
Abstract: Potato is one of most important food crops in the world in general and Ethiopia in particular. However, low productivity of potato is one of the major constraints in potato production in Ethiopia. Encouraging adoption and wider diffusion of potato technologies are important policy measure to address the problem. However, adoption and intensity of adoption of improved potato varieties are constrained by many factors. Hence, in this study an effort was made to evaluate adoption decis...
Abstract: Evaluation of genotypes for the existence of variations and generation of genetic information is the key step in plant breeding to develop varieties for the targeted area of production. Twenty desi chickpea genotypes were tested in randomized complete block design with three replications. The objectives of the study were to estimate the extent of genotypic and phenotypic variability, estimate the genotypic and phenotypic associations among characters and to estimate the direct and ...