
Gizaw Wegayehu TilahunEthiopian Institute of Agricultural Research | EIAR · Department of Agronomy, plant breeding and protection
Gizaw Wegayehu Tilahun
Master of Science
Researcher
About
26
Publications
7,382
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36
Citations
Introduction
Participatory barley breeding
Education
December 2020 - December 2022
Publications
Publications (26)
The goal of potato breeding is to develop widely adaptable, highly productive cultivars that farmers would prefer. The objective of this study was to evaluate the performance and stability of potato varieties linking the preferences of smallholder farmers in rain-fed and irrigated environments. Using a randomized complete block design in three repl...
The experiment was conducted to select the best yielder and widely adaptable white cumin genotypes across different testing environments during the 2012, 2013, 2014, and 2015 main cropping seasons. Nine white cumin genotypes were evaluated in RCBD design using three replications at eleven environments. The combined mean performance recorded a highe...
Potato is one of the most important and strategic crops, which enhance food security and economic benefits to the world and countries such as Ethiopia. Ethiopia has suitable conditions for the production of potatoes. A field experiment was conducted in the South Eastern highlands of Ethiopia to evaluate the performance of potato varieties for tuber...
A field experiment was carried out in the meher season (July–November 2021 and 2022) at Kulumsa, Southeastern Ethiopia. Genetic diversity study among the available genetic resources is the most important step in improving crops through selection or hybridization. The aim of this study is to determine the magnitude of diversity among Ethiopian fenug...
One of the fundamental goals of plant breeding is to evaluate genetic diversity in crop species, which aids in the development of breeding approaches. Therefore, this field experiment was conducted to assess mean performance, the genetic variability in garlic genotypes on bulb yield and related traits. The field evaluation of thirteen garlic genoty...
Assessing the genetic diversity of crop species is one of the main objectives of plant breeding since it helps with the creation of breeding strategies. Thus, the purpose of this field experiment was to evaluate the genetic diversity and mean performance of garlic genotypes on bulb yield and associated variables. The field evaluation of nineteen ga...
One of the fundamental goals of plant breeding is to evaluate genetic diversity in crop species, which aids in the development of breeding approaches. Therefore, this field experiment was conducted to assess mean performance, the genetic variability in garlic genotypes on bulb yield and related traits. The field evaluation of thirteen garlic genoty...
Experiments under field conditions were conducted in the Meher season from mid-July to December 2019 and 2020 at Kulumsa and Arsi Robe, Southeast Ethiopia. The study intended to evaluate white cumin accessions for agronomic and quality traits. Fifteen genotypes were laid out in a randomized complete block design in three replications. The analysis...
Potato has lived with several diseases and insect pests such as late blight and potato tuber moth for several decades. However, newly emerging insect pest known by the name 'mealybug' is recorded as a new threat for potato production in the highlands of Arsi, Southeast Ethiopia. This pest has never been observed in the area in the history of potato...
The study sought to ascertain spider mite prevalence, infestation, and identification and to assess the response of potato genotypes. In 2022, this pest was only observed on some genotypes in December. In late January, an infestation, incidence, and severity increased from 10 to 13 genotypes on potato tuber stocks stored for irrigation experiments....
A phenotypic diversity study was carried out under field conditions in the meher season ((July–November 2019 and 2020) at Kulumsa, Southeast Ethiopia to assess variables that directly affect seed yield, contribute to the total phenotypic variance, and classify coriander accessions. Twenty-five Ethiopian coriander accessions were laid out in a simpl...
The objective of this study was to assess the extent of variability of yield and yield-related traits, heritability, and genetic advances among Ethiopian coriander accessions. The experiment was conducted at Kulumsa Agricultural Research Center, Southeast Ethiopia, during 2019- 2020 cropping seasons. Twenty-five Ethiopian coriander accessions were...
A field experiment was conducted at the Kulumsa Agricultural Research Center in Southeast Ethiopia during the meher season (July to November 2019 and 2020) to evaluate the extent of variability, heritability, and genetic advance of eight yield and yield-related variables among 25 Ethiopian coriander accessions. A 5×5 simple lattice with two replica...
Seed quality is crucial for the success of crop production, as it affects germination capacity, emergence potential, and seedling growth. This study investigated the impact of extended stor-age on the germination capacity, oleoresin and essential oil contents of black cumin seeds from three black cumin varieties in Ethiopia: "Aden", "Dershaye", and...
Multi-environment trials were carried out at 3 locations in different black cumin growing zones of Ethiopia during June-December, 2017–2018 and 2018–2019 to select high yielding and adaptable genotypes for commercial production in Ethiopia. Ten advanced black cumin genotypes were evaluated with one standard check variety. The genotypes were arrange...
to select high yielding and adaptable genotypes for commercial production in Ethiopia. Ten advanced black cumin genotypes were evaluated with one standard check variety. The genotypes were arranged in Randomized Complete Block Design with three replications. The ANOVA revealed that the differences in seed yield among genotypes (G), environments (E)...
The experiment was carried out under rain fed conditions for three consecutive years (2017–2019) from mid-June to mid-October at Bekoji and Kofele sub sites of Kulumsa Agricultural Research Center, Ethiopia by using improved varieties to identify superior genotypes. The experiment was laid out in a randomized complete block design with three replic...
An apple tree pruning experiment was conducted to investigate the effect of pruning time on yield and quality of
apple fruits at Kulumsa Agricultural Research Center, Southeast Ethiopia, during the cropping seasons of 2019 and
2020, in two sets each year. Eight treatment combinations of two varieties (Ana and Princesa) and four times of pruning...
Onion is one of the most important vegetable crops in the world including Ethiopia. The field experiment was conducted in Arsi zone at Kulumsa Agriculture Research Center and Ziway Dugda districts under irrigation condition. A total of five improved onion varieties were evaluated in Randomized Complete Block Design with three replications with the...
Shallot (Allium cepa var. ascalonicum Backer) is an important vegetable crop cultivated by smallholder farmers for consumption and income generation in Ethiopia. However, scarcity of high yielding varieties as well as lack of superior planting material seriously constrains productivity of the crop. Research project was initiated aiming at studying...
Potato is one of the most important crops in the farming system of Bekoji and Kofele in the cool highlands of Arsi where potato is usually grown biennially during the main and 'bulg' seasons. 'Belete' has been the dominant potato variety in these areas for the last ten years now and farmers prefer to grow this variety for its high productivity and...
Development of recommendation on appropriate plant spacing is one of the important agronomic practices to increase the productivity of carrot. Therefore, a field experiment was conducted to assess the response of carrot variety AU-18 to different inter-row spacing in 2018 and 2019 using irrigation. Three inter-rows spacing of 50, 75 and 100cm were...
Black cumin is the major and the most important spice in Southeast highlands of Ethiopia. However, the yield of the crop is very low mainly due to lack of optimum plant density. A field experiment was done with the objective to assess the influence of different seed rates and inter-row spacing on yield and yield attributes of black cumin at Kulumsa...
Field experiment involving five improved onion (Allium cepa L.) varieties and carried out at Kulumsa Agricultural Research Center during the 2018 to 2019 cropping seasons under irrigated condition to identify the best performing variety for seed production to the target areas of Arsi Zone. The onion varieties included in the field experiment were (...
Field experiment involving five improved onion (Allium cepa L.) varieties and carried out at Kulumsa Agricultural Research Center during the 2018 to 2019 cropping seasons under irrigated condition to identify the best performing variety for seed production to the target areas of Arsi Zone. The onion varieties included in the field experiment were (...
Potato has lived with several diseases and insect pests such as late blight and potato tuber moth for several decades. However, newly emerging insect pest known by the name 'mealybugs' is recorded as a new threat for potato production in the highlands of Arsi, Southeast Ethiopia. This pest has never been observed in the area in the history of potat...
Questions
Question (1)
Specially for experimets conducted in multiple environments