Stephen Mugo
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View article: Development and initial validation of the attitudes toward face mask use scale (ATFMUS)
Development and initial validation of the attitudes toward face mask use scale (ATFMUS) Open
Despite availability of instruments for measuring attitudes towards mask use, the psychometric properties of many available instruments are not adequately established which limits their research usefulness across contexts. In three studies…
View article: Designing a Pest and Disease Outbreak Warning System for Farmers, Agronomists and Agricultural Input Distributors in East Africa
Designing a Pest and Disease Outbreak Warning System for Farmers, Agronomists and Agricultural Input Distributors in East Africa Open
Early warnings of the risks of pest and disease outbreaks are becoming more urgent, with substantial increases in threats to agriculture from invasive pests. With geospatial data improvements in quality and timeliness, models and analytica…
View article: Economic impact of DroughtTEGO hybrid maize in Kenya
Economic impact of DroughtTEGO hybrid maize in Kenya Open
This paper utilizes the Economic Surplus Model (ESM) to provide an ex-post evaluation of the economic impact of drought tolerant hybrid maize technology in Kenya. Results indicate that the adoption of DroughtTEGO® varieties will generate e…
View article: Genetic Analysis of QTL for Resistance to Maize Lethal Necrosis in Multiple Mapping Populations
Genetic Analysis of QTL for Resistance to Maize Lethal Necrosis in Multiple Mapping Populations Open
Maize lethal necrosis (MLN) occurs when maize chlorotic mottle virus (MCMV) and sugarcane mosaic virus (SCMV) co-infect maize plant. Yield loss of up to 100% can be experienced under severe infections. Identification and validation of geno…
View article: On-farm performance and farmers’ participatory assessment of new stress-tolerant maize hybrids in Eastern Africa
On-farm performance and farmers’ participatory assessment of new stress-tolerant maize hybrids in Eastern Africa Open
The development and deployment of high-yielding stress tolerant maize hybrids are important components of the efforts to increase maize productivity in eastern Africa. This study was conducted to: i) evaluate selected, stress-tolerant maiz…
View article: Adoption of climate-smart DroughtTEGO® varieties in Kenya
Adoption of climate-smart DroughtTEGO® varieties in Kenya Open
Africa to address the impact of drought occasioned by climate change.To determine the level of adoption and use of DroughtTEGO ® maize hybrids in Kenya, a survey was conducted involving 642 farming households from six counties.The results …
View article: Empirical Comparison of Tropical Maize Hybrids Selected Through Genomic and Phenotypic Selections
Empirical Comparison of Tropical Maize Hybrids Selected Through Genomic and Phenotypic Selections Open
Genomic selection predicts the genomic estimated breeding values (GEBVs) of individuals not previously phenotyped. Several studies have investigated the accuracy of genomic predictions in maize but there is little empirical evidence on the…
View article: Response of Selected Maize Inbred Germplasm to Maize Lethal Necrosis Disease and Its Causative Viruses (Sugarcane Mosaic Virus and Maize Chlorotic Mottle Virus) in Kenya
Response of Selected Maize Inbred Germplasm to Maize Lethal Necrosis Disease and Its Causative Viruses (Sugarcane Mosaic Virus and Maize Chlorotic Mottle Virus) in Kenya Open
Background: Maize lethal necrosis (MLN) disease continues to reduce the productivity of maize drastically threatening food security in the affected regions. It continues to cause yield loss of 30–100 percent in farmers’ fields, depending o…
View article: Correction to: Genotype by environment interactions and agronomic performance of doubled haploids testcross maize (Zea mays L.) hybrids
Correction to: Genotype by environment interactions and agronomic performance of doubled haploids testcross maize (Zea mays L.) hybrids Open
The original version of this article was revised because it should have been published with open access which it is at present.
View article: Maize Combined Insect Resistance Genomic Regions and Their Co-localization With Cell Wall Constituents Revealed by Tissue-Specific QTL Meta-Analyses
Maize Combined Insect Resistance Genomic Regions and Their Co-localization With Cell Wall Constituents Revealed by Tissue-Specific QTL Meta-Analyses Open
Combinatorial insect attacks on maize leaves, stems, and kernels cause significant yield losses and mycotoxin contaminations. Several small effect quantitative trait loci (QTL) control maize resistance to stem borers and storage pests and …
View article: Grain-yield stability among tropical maize hybrids derived from doubled-haploid inbred lines under random drought stress and optimum moisture conditions
Grain-yield stability among tropical maize hybrids derived from doubled-haploid inbred lines under random drought stress and optimum moisture conditions Open
Drought is a devastating environmental stress in agriculture and hence a common target of plant breeding. A review of breeding progress on drought tolerance shows that, to a certain extent, selection for high yield in stress-free condition…
View article: Resistance of selected Mozambican local and improved maize genotypes to maize weevil, Sitophilus zeamais (Motschulsky)
Resistance of selected Mozambican local and improved maize genotypes to maize weevil, Sitophilus zeamais (Motschulsky) Open
Maize weevil Sitophilus zeamais (Motschulsky) is one of the most important pests of on-farm stored maize in thetropics, particularly where there is no control of moisture content and application of pesticides. This study aimed todetermine …
View article: Quantitative trait loci for resistance to spotted and African maize stem borers (Chilo partellus and Busseola fusca) in a tropical maize (Zea mays L.) population
Quantitative trait loci for resistance to spotted and African maize stem borers (Chilo partellus and Busseola fusca) in a tropical maize (Zea mays L.) population Open
Maize (Zea mays L.) is the staple food in Kenya, and mapping the qualitative trait loci (QTL) associated with resistance to maize stem borer pest is important towards marker assisted breeding for this quantitative trait. The objective of t…
View article: Combining ability and testcross performance of drought‐tolerant maize inbred lines under stress and non‐stress environments in Kenya
Combining ability and testcross performance of drought‐tolerant maize inbred lines under stress and non‐stress environments in Kenya Open
Drought and poor soil fertility are among the major abiotic stresses affecting maize productivity in sub‐Saharan Africa. Maize breeding efforts at the International Maize and Wheat Improvement Center ( CIMMYT ) have focused on incorporatin…
View article: Grain yield performance and flowering synchrony of CIMMYT’s tropical maize (Zea mays L.) parental inbred lines and single crosses
Grain yield performance and flowering synchrony of CIMMYT’s tropical maize (Zea mays L.) parental inbred lines and single crosses Open
Maize production constraints in sub-Saharan Africa (SSA) are being addressed by CIMMYT and partners through an array of projects, focusing on developing and evaluating parental inbred lines and single-crosses as well as formulating, evalua…
View article: Resistance of Bt-maize (MON810) against the stem borers Busseola fusca (Fuller) and Chilo partellus (Swinhoe) and its yield performance in Kenya
Resistance of Bt-maize (MON810) against the stem borers Busseola fusca (Fuller) and Chilo partellus (Swinhoe) and its yield performance in Kenya Open
A study was conducted to assess the performance of maize hybrids with Bt event MON810 (Bt-hybrids) against the maize stem borer Busseola fusca (Fuller) in a biosafety greenhouse (BGH) and against the spotted stem borer Chilo partellus (Swi…
View article: Spotted stemborer, Chilo partellus (Swinhoe 1885)
Spotted stemborer, Chilo partellus (Swinhoe 1885) Open
The Insect Resistant Maize for Africa (IRMA) project is currently developing Bt maize for Kenya.So far, Bt genes with resistance to Chilo partellus, Chilo orichalcociliellus, Eldana Sacharina, and Sesamia calamistis, four of the five major…
View article: Combining ability for stem borer resistance and heterotic orientation of maize inbred lines using CIMMYT single cross testers under Chilo partellus infestation
Combining ability for stem borer resistance and heterotic orientation of maize inbred lines using CIMMYT single cross testers under Chilo partellus infestation Open
The spotted stem borer, Chilo partellus, Swinhoe (Lepidoptera, Crambidae) is one of the most destructive insect pests of maize in tropical environments. However, the combining ability and heterotic orientation of the germplasm for grain yi…
View article: Improving Maize Grain Yield under Drought Stress and Non‐stress Environments in Sub‐Saharan Africa using Marker‐Assisted Recurrent Selection
Improving Maize Grain Yield under Drought Stress and Non‐stress Environments in Sub‐Saharan Africa using Marker‐Assisted Recurrent Selection Open
In marker‐assisted recurrent selection (MARS), a subset of molecular markers significantly associated with target traits of interest are used to predict the breeding value of individual plants, followed by rapid recombination and selfing. …
View article: Genotype by environment interactions and agronomic performance of doubled haploids testcross maize (Zea mays L.) hybrids
Genotype by environment interactions and agronomic performance of doubled haploids testcross maize (Zea mays L.) hybrids Open
In vivo production of maternal haploid plants and advancement in chromosome doubling technology has led to rapid production of doubled haploid homozygous lines. These in turn have boosted rapid advancement in most breeding programs. This h…
View article: Response to S1 recurrent selection for resistance to two stem borers, Busseola fusca and Chilo partellus, in two tropical maize populations
Response to S1 recurrent selection for resistance to two stem borers, Busseola fusca and Chilo partellus, in two tropical maize populations Open
Stem borers, Busseola fusca and Chilo partellus , are among the key devastating lepidopteran insect pests of maize causing grain yield losses. Recurrent selection studies for stem borer resistance in maize are limited. However, maize popul…