Getachew Weldemichael

Ethiopian Institute of Agricultural Research | EIAR · Department of Crop Science

The production and productivity of coffee are significantly influenced by several factors, including the utilization of unimproved varieties and poor agronomic practices. To address this issue, it is crucial to implement recommended agronomic technologies, such as spacing and pruning methods. This study aimed to determine the appropriate spacing an...

Crop diversification refers to the practice of cultivating various crops on a single farm or within a particular area. In general, crop diversification is utmost importance as it contributes significantly to the maintenance of food security, environmental sustainability, and economic stability within the agricultural industry. The study was conduct...

The performance of genotypes under diverse environments can be used to determine their adaptability and stability. However, information on the performance of coffee genotypes in various environmental conditions is limited. Thus, this study’s objectives were to estimate genotype by environment interaction (GEI), evaluate the mean performance and sta...

ECSS (2022). Sirawdink Fikreyesus Forsido, Getachew WeldeMichael, Esayas Mendesil, Gezahegn Berecha, Taye Kufa, and Kifle Belachew (Eds.). Proceedings of Ethiopian Coffee Science Society (ECSS): Coffee Science and Innovation for Climate Resilience and Sustainable Coffee Value Chain in Ethiopia. Second Biennial Conference of Ethiopian Coffee Science...

Forty-seven Coffea arabica L. germplasm accessions collected from Limmu district were field evaluated from 2004/5 to 2013/14 with two commercial check varieties at Agaro Agricultural Research sub-center in a single plot. The objective of the experiment was to assess the variability among the accessions using quantitative traits. Data for about eigh...

Avocado root rot disease, which is caused by the fungus Phytophthora cinnamomi Rands, is one of the major avocado production constraints in southwest Ethiopia. Evaluation of root rot control options was carried out 20011-2012 on root rot infested field at Gera and green house at Jimma. For field experiment at Gera Six treatments (compost, mulchi...

Field experiment was conducted at Jimma Agricultural Research Center (JARC) for two consecutive growing seasons (2012-2014 and 2015-2017 as a ratoon crop). The objective of the study was to evaluate the effect of different rates of inorganic N and P fertilizers on pineapple (variety Smooth cayenne) for yield and quality traits. Four levels of N...

Forty-nine Coffea arabica. L. germplasm accessions,which were collected from Gomma district, were evaluated at Agaro research sub center with the objective of assessing the variability among the accessions using qualitative traits. The experiment was conducted in simple lattice design with two replications. Data on13 qualitative traits were reco...

Field experiment was conducted at Gojeb state farm of South Ethiopia, for two cropping seasons (2012-2014 and 2015-2017 as a ratoon crop). The objective of the study was to evaluate the effect of different rates of inorganic N and P fertilizers on pineapple (variety Smooth cayenne) for yield and quality traits. Four levels of N (0, 93.6, 108 and...

Variability for coffee bean biochemical composition among the coffee accessions is vital for further quality improvement. However, lack of this information has been one of the major bottlenecks for any coffee quality improvement program. The current study was, therefore, conducted to evaluate the level of variability in green bean biochemical compo...

Abstract: Coffee is the world’s most widely traded tropical agricultural commodity next to oil and is the back bone to the Ethiopian economy. The associations between yield and its components offer important information for plant breeders. Hence, this experiment was conducted at Agaro research station, southwest Ethiopia, to determine the extent of...

The crop cassava belongs to the dicotyledonous family Euphorbiaceae and is mainly cultivated for its starchy roots. In the tropics, it is the most important food staple where it’s known for its source of energy and in the world, it’s ranked sixth most important source of calories in human diet. In Ethiopia, its produced for its starchy root and fou...

Field experiment was conducted at Jimma Agricultural Research Center (JARC) for two consecutive growing seasons (2012-2014 and 2015-2017 as a ratoon crop). The objective of the study was to evaluate the effect of different rates of inorganic N and P fertilizers on pineapple (variety Smooth cayenne) for yield and quality traits. Four levels of N (0,...

Cassava is one of the most important food crops that constitute a considerable portion of the daily diet of the people and also serves as one of the major source of carbohydrate. Despite its importance, production of cassava in Ethiopia has different constraints and opportunities. Among which shortage of improved varieties is the first and the most...

knowledge of nature and extent of genetic variation and diversity available in the germplam or breeding materials helps breeder for planning sound breeding program. Hence, the present investigation was undertaken to evaluate 47 coffee germplam accessions, which were collected from Gomma wereda of Jimma zone and two standard check varieties. The exp...

Information on genetic variability is a prerequisite for further improvement of the yield and quality of coffee. However, lack of information on genetic variability for specialty coffee accessions has been one of the major problems in coffee improvement program. Forty nine coffee (Coffea arabica L.) germplasm accessions, which were collected from G...

Often driven by food security and market forces, farmers in Ethiopia have been innovating for centuries. However, innovation developments like FRGs have started to tap into the existing social systems only in the last few years. Similarly, there was no comprehensive study conducted on potato FRGs in the study areas. This paper is an output of resea...

The present investigation was carried out to study the correlation and path coefficient analysis in 49 coffee (Coffea arabica L.) germplasm accessions, which were collected from Gomma district, at Agaro. Data on eight organoleptic quality traits were recorded by well experienced and trained coffee tasters. Character association of the quality attri...

The study was carried out with the objective to estimate the genotypic variability and other yield related traits of taro in Ethiopia. A total of 100 accessions of taro were considered to this study. Analysis of variance was computed to contrast the variability within the collected accessions based on yield and other yield related traits. The resul...

The experiment was conducted at Jimma Agricultural Research Centre during the 2010/11 cropping season. The objectives of the study were to evaluate the genetic diversity of taro using agronomic traits so as to characterize and cluster with in collected taro genotypes. One hundred taro accessions were sampled from the collection. Relatively high bro...