Stephen Mwangi Githiri
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View article: Germination response of <i>Striga hermonthica</i> ecotypes from Western Kenya upon exposure to maize root exudates
Germination response of <i>Striga hermonthica</i> ecotypes from Western Kenya upon exposure to maize root exudates Open
Striga hermonthica, commonly known as witchweed or ‘cereal killer', is a root hemiparasite of cereals, germinating only in response to host-induced molecules, strigolactones (SL). It continues to pose a serious threat to maize production i…
View article: Isolation, screening and in-vitro characterization of plant growth-promoting Bradyrhizobium isolates from the nodules of Bambara groundnut (Vigna subterranean) for potential use as bioinoculants
Isolation, screening and in-vitro characterization of plant growth-promoting Bradyrhizobium isolates from the nodules of Bambara groundnut (Vigna subterranean) for potential use as bioinoculants Open
Bambara groundnut ( Vigna subterranean ) is a resilient leguminous crop that can withstand drought conditions and is commonly grown in arid regions where soils are degraded and of low fertility status. Although the crop can fix nitrogen, i…
View article: Association Mapping of Candidate Genes Associated with Iron and Zinc Content in Rice (Oryza sativa L.) Grains
Association Mapping of Candidate Genes Associated with Iron and Zinc Content in Rice (Oryza sativa L.) Grains Open
Micronutrient deficiencies, particularly of iron (Fe) and zinc (Zn), in the diet contribute to health issues and hidden hunger. Enhancing the Fe and Zn content in globally staple food crops like rice is necessary to address food malnutriti…
View article: Population Structure and Genetic Diversity of Rice (Oryza sativa L.) Germplasm from the Democratic Republic of Congo (DRC) Using DArTseq-Derived Single Nucleotide Polymorphism (SNP)
Population Structure and Genetic Diversity of Rice (Oryza sativa L.) Germplasm from the Democratic Republic of Congo (DRC) Using DArTseq-Derived Single Nucleotide Polymorphism (SNP) Open
Understanding the genetic diversity and population structure of rice is crucial for breeding programs, conservation efforts, and the development of sustainable agricultural practices. This study aimed to assess the genetic diversity and po…
View article: Transcriptome-Guided Identification of Pectin Methyl-Esterase-Related Enzymes and Novel Molecular Processes Effectuating the Hard-to-Cook Defect in Common Bean (Phaseolus vulgaris L.)
Transcriptome-Guided Identification of Pectin Methyl-Esterase-Related Enzymes and Novel Molecular Processes Effectuating the Hard-to-Cook Defect in Common Bean (Phaseolus vulgaris L.) Open
The hard-to-cook defect in common beans is dictated by the ability to achieve cell separation during cooking. Hydrolysis of pectin methyl-esters by the pectin methyl-esterase (PME) enzyme influences cell separation. However, the contributi…
View article: Deciphering the Mechanisms of Pre-Attachment Striga Resistance in Sorghum Using Genome-Wide Association Studies
Deciphering the Mechanisms of Pre-Attachment Striga Resistance in Sorghum Using Genome-Wide Association Studies Open
Witchweeds ( Striga spp.) greatly limit production of Africa’s most staple crops. These parasitic plants use strigolactones (SLs) – chemical germination stimulants, emitted from host’s roots to germinate, and locate their hosts for invasio…
View article: Evaluation of genetic variability and interrelationships among M3 and M4 maize inbred lines in Kenya
Evaluation of genetic variability and interrelationships among M3 and M4 maize inbred lines in Kenya Open
The present study was conducted at Jomo Kenyatta University of Agriculture and Technology, Juja to assess the agronomic performance of mutant maize lines of 39 filial generation 3 (M3) and filial generation 4 (M4) maize lines and a check v…
View article: Evaluation of the Performance of Sweet Potato (Ipomoea batatas) Clones under Water Stress in the Coastal Lowlands of Kenya
Evaluation of the Performance of Sweet Potato (Ipomoea batatas) Clones under Water Stress in the Coastal Lowlands of Kenya Open
The production of sweet potato (Ipomoea batatas (L.) Lam.) in coastal Kenya is diminishing due to unreliable rainfall, coupled with farmers’ use of unimproved sweet potato varieties that are not drought tolerant. A study was conducted at P…
View article: Loss-of-Function Mutation of Soybean R2R3 MYB Transcription Factor Dilutes Tawny Pubescence Color
Loss-of-Function Mutation of Soybean R2R3 MYB Transcription Factor Dilutes Tawny Pubescence Color Open
Pubescence color of soybean is controlled by two genes, T and Td. In the presence of a dominant T allele, dominant and recessive alleles of the Td locus generate tawny and light tawny (or near-gray) pubescence, …
View article: Loss-of-function mutation of soybean R2R3 MYB transcription factor reduces flavone content and dilutes tawny pubescence color
Loss-of-function mutation of soybean R2R3 MYB transcription factor reduces flavone content and dilutes tawny pubescence color Open
Background Pubescence color of soybean is controlled by two genes, T and Td. In the presence of a dominant T allele, dominant and recessive alleles of the Td locus generate tawny and light tawny (or near-gray) pubescence, respectively. Fla…
View article: Phenotype characterization and diversity assessment of mango (Mangifera indica L.) cultivars in Ethiopia
Phenotype characterization and diversity assessment of mango (Mangifera indica L.) cultivars in Ethiopia Open
Little efforts have been made on mango genetic resource assessment in Ethiopia though it is one of the major fruit crops. This study was conducted to assess the diversity of 69 mango cultivars of different growing regions of the country ba…
View article: Exploiting Genetic Diversity for Blast Disease Resistance Sources in Finger Millet (<i>Eleusine coracana</i>)
Exploiting Genetic Diversity for Blast Disease Resistance Sources in Finger Millet (<i>Eleusine coracana</i>) Open
Finger millet blast, caused by Magnaporthe grisea, is the most important disease of finger millet in East Africa. Diseased plants are significantly less productive, and most cultivars grown by farmers are susceptible to the disease. Fungic…
View article: Effect of water stress on growth of three linseed (Linum usitatissimum L.) varieties
Effect of water stress on growth of three linseed (Linum usitatissimum L.) varieties Open
View article: Quantitative trait locus mapping of soybean maturity gene <i>E5</i>
Quantitative trait locus mapping of soybean maturity gene <i>E5</i> Open
Time to flowering and maturity in soybean is controlled by loci E1 to E5, and E7 to E9. These loci were assigned to molecular linkage groups (MLGs) except for E5. This study was conducted to map the E5 locus using F2 populations expected t…
View article: Genetic Variation among Sorghum (&lt;i&gt;Sorghum bicolor&lt;/i&gt; L. Moench) Landraces from Eritrea under Post-Flowering Drought Stress Conditions
Genetic Variation among Sorghum (<i>Sorghum bicolor</i> L. Moench) Landraces from Eritrea under Post-Flowering Drought Stress Conditions Open
Sorghum (Sorghum bicolour (L.) Moench) grown under rain-fed conditions is usually affected by drought stress at different stages, resulting in reduced yield. The assessment of variation in morpho-physiological traits contributing towards d…