Browsing by Author "Ombori, Omwoyo"
Now showing items 1-15 of 15
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Agrobacterium-mediated genetic transformation of selected tropical inbred and hybrid maize (Zea mays L.) lines.
Ombori, Omwoyo; Muoma, John Vincent Omondi; Machuka, Jesse (Plant Cell, Tissue and Organ Culture (PCTOC), 2012-10-25)The study was carried out to evaluate the amenability of tropical inbred and hybrid maize lines, using Agrobacterium mediated transformation technique. Agrobacterium tumefaciens strains EHA101 harbouring a pTF102 binary ... -
Agrobacterium-Mediated Transformation of Selected Kenyan Maize (Zea mays L.) Genotypes by Introgression of Nicotiana Protein Kinase (npk1) to Enhance Drought Tolerance
Muoma, John Vincent Omondi; Ombori, Omwoyo (American Journal of Plant Sciences, 2014-03)Currently maize production in the East and Central Africa (ECA) region is at 1.3 tonnes per hectare compared to the potential of up to 7.0 tonnes per hectare because of biotic and abiotic constraints, and this has resulted ... -
Agronomic effectiveness of water hyacinth-based composts
mukama, Dennis Beesiga; Katusabe, Alice Amoding; Tumuhairwe, John Baptist; Muoma, John; Maingi, John M.; Ombori, Omwoyo; Nakanwagi, Josephine; Mukaminega, Dative (African Journal of Agricultural Research, 2018-09)Because water hyacinth-based compost contains substantial amounts of nitrogen (N), phosphorus (P) and potassium (K) its application can boost crop production. We evaluated the agronomic performance of water hyacinth - based ... -
Belowground Influence of Rhizobium Inoculant and Water Hyacinth Composts on Yellow Bean Infested by Aphis fabae and Colletotrichum lindemuthianum under Field Conditions
Naluyange, Victoria; Ochieno, Dennis; Wandahwa, Philip; Odendo, Martins; Maingi, John; Amoding, Alice; Ombori, Omwoyo; Mukaminega, Dative; Muoma, John (Journal of Plant Studies, 2016-04)Rhizobium inoculant has been developed for bean production in Lake Victoria basin. Two types of compost have been developed, water hyacinth compost with cattle manure culture (H+CMC) or with effective microbes (H+EM). ... -
Compatibility of Rhizobium inoculant and water hyacinth compost formulations in Rosecoco bean and consequences on Aphis fabae and Colletotrichum lindemuthianum infestations
Naluyange, Victoria; Ochieno, Dennis M.W.; Maingi, John M.; Ombori, Omwoyo; Mukaminega, Dative; Amoding, Alice; Odendo, Martins; Okothf, Sheila A.; Shivog, William A.; Muomaa, John V.O. (Applied Soil Ecology, 2014-04)The common bean, Phaseolus vulgaris is an important crop for food security and nitrogen fixation through Rhizobium symbiosis. Commercial Rhizobium inoculants are being promoted to fix nitrogen and enhance bean production ... -
Effect of nitrogen sources on the yield of common bean (Phaseolus vulgaris) in western Kenya
Kawaka, Fanuel; Dida, Mathews; Opala, Peter; Ombori, Omwoyo; Maingi, John; Amoding, Alice; Muoma, John (Journal of Plant Nutrition, 2018-05-15)Depletion of soil nutrients due to continuous cultivation without adequate external fertilization is one of the challenges facing many smallholder farmers in western Kenya. This study was conducted to assess the effects ... -
Effects of Water Hyacinth (Eichhornia crassipes [mart.] solms) Compost on Growth and Yield Parameters of Maize (Zea mays
Osoro, Newton; Muoma, John O.; Amoding, Alice; Mukaminega, Dative; Muthini, Morris; Ombori, Omwoyo; Maingi, John M. (Current Journal of Applied Science and Technology, 2013-11-18)Aims: To evaluate the effects of water hyacinth compost prepared with various cultures on growth and yield parameters of maize. Study Design: Randomized Complete Block Design. Place and Duration of Study: Field experiments ... -
Effects of Water Hyacinth (Eichhornia crassipes [mart.] solms) Compost on Growth and Yield Parameters of Maize (Zea mays)
Osoro, Newton; Muoma, John O.; Amoding, Alice; Mukaminega, Dative; Muthini, Morris; Ombori, Omwoyo; Maingi, John M. (British Journal of Applied Science & Technology, 2013-11-18)Aims: To evaluate the effects of water hyacinth compost prepared with various cultures on growth and yield parameters of maize. Study Design: Randomized Complete Block Design. Place and Duration of Study: Field experiments ... -
Genetic Characterization of Rhizosphere Bacteria that Inhabit Common Bean Nodules in Western Kenya Soils
Wekesa, Clabe; Muoma, John; Ombori, Omwoyo; Maingi, John; Okun, Daniel; Juma, Kelvin Kisaka; Indakwa, Emily Nakhumicha Wamalwa; Kollenberg, Mario; Mauti, Eliakim (Applied Microbiology: open access, 2017-03)Background: With the increasing world population, there is increasing demand for food. This has led to overuse of agricultural farms causing reduced soil fertility and accumulation of phytopathogens. Inorganic fertilizers ... -
Genetic diversity of symbiotic bacteria nodulating common bean (Phaseolus vulgaris) in western Kenya
Kawaka, Fanuel; Makonde, Huxley; Dida, Mathews; Opala, Peter; Ombori, Omwoyo; Maingi, John; Muoma, John (Plos One, 2018-11-15)Biological nitrogen fixation (BNF) in legumes plays a critical role in improving soil fertility. Despite this vital role, there is limited information on the genetic diversity and BNF of bacteria nodulating common bean ... -
Improving Water Hyacinth-Based Compost for Crop Production
Beesigamukama, Dennis; Tumuhairwe, John Baptist; Muoma, John; Maingi, John M.; Ombori, Omwoyo; Mukaminega, Dative; Nakanwagi, Josephine; Amoding, Alice (Journal of Agricultural Science and Food Technology, 2018-05-30)A study was carried out to hasten maturity, improve nutrient content and determine agronomic performance of water hyacinth-based composts. Water hyacinth (WH) was composted using pile method and six treatments: WH + ... -
Morphological Assessment and Effectiveness of Indigenous Rhizobia Isolates that Nodulate P. vulgaris in Water Hyacinth Compost Testing Field in Lake Victoria Basin
Muthini, Morris; Maingi, John M.; Muoma, John O.; Amoding, Alice; Mukaminega, Dative; Osoro, Newton; Mgutu, Allan; Ombori, Omwoyo (Current Journal of Applied Science and Technology, 2013-12-05)Aims: The study was aimed at isolating, identifying and assessing the effectiveness of indigenous rhizobia nodulating P. vulgaris in Lake Victoria Basin (LVB). Study Design: Randomized complete block design. Place and ... -
Performance of Mwitemania Bean Under the Influence of Nitrogen-Fixing Rhizobium Inoculant, Water Hyacinth Composts and DAP Fertilizer in a Field Infested with Aphis fabae and Colletotrichum lindemuthianum
Naluyange, Victoria; Ochieno, Dennis M. W.; Wandahwa, Philip; Maingi, John M.; Ombori, Omwoyo; Mukaminega, Dative; Amoding, Alice; Odendo, Martins; Muoma, John V. O. (Springer, 2021-11-10)The production of beans in the Lake Victoria basin of East Africa has been declining while the water hyacinth has been invasively spreading in the lake. These are understood to be effects of nitrogen (N) loss among other ... -
Response of Common Bean (Phaseolus vulgaris L.) Cultivars to Water Hyacinth (Eichhornia crassipes [Mart.] Solms) Compost in Kisumu, Kenya along the Lake Victoria Basin
Kawaka, Fanuel; Ombori, Omwoyo; Maingi, John M.; Amoding, Alice; Mukaminega, Dative; Muoma, John (Journal of Experimental Agriculture International, 2018-11)Aims: This study aimed at enhancing common bean production among the small holder farmers along the Lake Victoria basin, Kenya through the use of water hyacinth compost. Study Design: Randomized Complete Block Design with ... -
Symbiotic Efficiency of Native Rhizobia Nodulating Common Bean (Phaseolus vulgaris L.) in Soils of Western Kenya.
Kawaka, Authors. Fanuel; Dida, Mathews M.; Opala, Peter A.; Ombori, Omwoyo; Maingi, John; Osoro, Newton; Muthini, Morris; Amoding, Alice; Mukaminega, Dative; Muoma, John (International Scholarly Research Notices, 2014-11-11)This study was conducted to determine the abundance and symbiotic efficiency of native rhizobia nodulating common bean in Kisumu and Kakamega, Kenya. Soil sampling was carried out in three farms that had been used for ...