Abstract: Tef is one of the most important crops widely cultivated throughout Ethiopia as a staple cereal crop. Assessment of genetic variability in crop species is one of the major activities of plant breeding which helps to design breeding methods to meet the diversified goals. Therefore, a field experiment was conducted to estimate genetic variability, associations of traits, and to determine the direct and indirect effects of yield components on grain yield of tef. The experiment was lai...
Abstract: The study was conducted on a community-based CHL goat breeding program (CBBP) established in 2013 in Meta Wolkite district, West Shoa zone. This study aimed to evaluate the performance progress so far achieved due to the genetic improvement intervention by CBBP and estimate genetic parameters of the growth performance. The General Linear Model Procedures in the Statistical Analysis System (SAS, 2002 version 9.0) were employed for quantitative traits and SPSS (SPSS, 2007 version 16....
Abstract: This study was carried out to investigate the effects of breed (rams and ewes), sex and birth type on growth performances of cross bred lambs of sheep under semi-intensive production system. Dorper and Horro rams were used for comparisons crossing with three local breeds of ewes (Horro, Black Head Ogaden (BHO) and Harreghe Highland (HH). Growth performance was determined using General Linear Model procedures. The results of this study showed that Dorper cross breed lambs were signi...
Abstract: Triticale varieties were recommended for production in Ethiopia following research undertaken for many decades. However, these varieties were not evaluated and introduced in districts of Benshangul Gumuz regional state having potential for the production of the crop. Therefore, the present research was undertaken to evaluate eight triticale varieties and assess the effect of locations and genotype x location interaction on yield and yield related traits, and to identify farmers’ ...
Abstract: Lifetime traits are some of the important traits used to compare the performance and profitability of dairy cattle. The objective of this study was to estimate the genetic and non genetic performance of lifetime traits of crossbred dairy cattle in the central highland of Ethiopia. Birth year records of 502 cows maintained at Holetta Agricultural Research Centre from 1974 to 2015(42 years) were used to estimate total life, herd life, productive life, lifetime milk yield, lifetime ca...
Abstract: The yield performance of maize genotypes is highly influenced by environmental factors and genotype by environment interaction (GEI). The presence of GEI makes it difficult to select the best performing as well as the most stable genotypes. Therefore, conducting multi-environment trials, appropriate analysis of the data and interpretation of the result is important to develop improved maize cultivars effectively in Ethiopia. This study was carried out to assess the effect of GEI on...
Abstract: Common bean is an important herbaceous annual grain legume in the world, chiefly grown as a source of protein, carbohydrates, vitamins and minerals in human diets. In Ethiopia, beyond promoting food, health and nutritional security, it covers the dominant part of the country’s pulses export contributing to the economy of the country.In an attempt to increase the productivity of the crop,several improved varieties have been released from national and regional research centers. How...
Abstract: Sorghum is one of the most important cereal crops grown in the world for human consumption, animal feed and bio-energy. Biotic and abiotic stress are the most dominant constraints for the production and productivity of the crop. The study was conducted with the objectives of estimating water use efficiency, drought tolerance and grain yield of sorghum genotypes under stress condition. The trials were conducted using 64 sorghum genotypes using alpha lattice design with two replicati...
Abstract: Ethiopia is the center of origin and domestication for sorghum with a wide range of sorghum collections for various agro-ecologies. However, there are many factors that hinder the production and productivity of sorghum. Drought is one of the most important factors that affect crop production worldwide and continues to be a challenge to plant breeders, despite many decades of research. Understanding the genetic variability and trait association is key to the development of improved ...
Abstract: Drought is among the most important obstacles in agriculture that retard the production as well as productivity of the crops across the entire world. Since sorghum is highly produced from arid to semi-arid tropics, it is one of the staple and strategic crops for farmers. However, there are a number of constraints that reduces production and productivity of sorghum in the country. Stay greenness resulting in higher grain per mass yield and lodging resistance to boost sorghum grain y...
Abstract: Potato (Solanum tuberosum L.) is one of the tuber crops produced in Ethiopia, mainly at mid and highlands of Ethiopia, due to the absence of potato varieties adaptable to lowland areas of the country. The country has large arable land in lowland areas, Thus, developing varieties adaptable to these areas is important. this research was conducted to estimate the effect of genotype x environment interaction (GEI) on morpho-agronomic traits and determine yield stability of potato genot...
Abstract: Mung bean is one of the most important legume crops. It serves as a source of protein for poor farmers in drought-prone areas of Ethiopia. It is used as a source of food and insurance crops during the drought season. Mung bean is adaptable to a wide range of climatic conditions. Despite adaptation and importance in moisture-stressed areas, its productivity is generally low due to a lack of suitable and drought-tolerant varieties. Moreover, the crop has got limited research attentio...
Abstract: It is imperative to study the level of genetic variability available in the existing groundnut genotypes due to the fact that, the aim of groundnut breeding programs across the world is to develop new varieties that meet the needs of growers, processors, consumers, and overall market demands. The present study was carried out to assess the extent of genetic variability among groundnut genotypes for agro-morphological and quality traits and to estimate association of traits and dete...
Abstract: Bread wheat is one of the most important cereal crop produced in almost all agro-ecologies of Ethiopia. Assessment of genetic variability in crop species is one of the major activities of plant breeding which helps to design breeding methods of genotypes for further evaluation to meet the diversified goals.Therefore the field experiment was conducted to estimategenetic variability, association of traits, determining their direct and indirect effecton grain yield and to identify pri...
Abstract The productivity of sorghum in Kenya is on decline despite sorghum being one of the suitable crops for the arid and semi-arid areas commonly found in Kenya. The study therefore aimed at establishing the effect of the selected socio-economic factors on sorghum productivity using a case of small-scale farmers in Siaya County. The four sub-counties considered for this study were selected on the basis of sorghum production. Stratified and random sampling techniques were applied to ident...