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Your search keyword '"K.O. Ogero"' showing total 2 results
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2 results on '"K.O. Ogero"'

1. Enhanced Utilization of Biotechnology Research and Development Innovations in Eastern and Central Africa for Agro-ecological Intensification

Author

Erostus Nsubuga, K.O. Ogero, Richard O. Oduor, Kahiu Ngugi, Zachary Muthamia, Abraha Tesfamichel, Charles Mugoya, Engida Tsegaye, Settumba B. Mukasa, Eric Kuria, Rasha Adam, Sarah Osama, Rasha Ali, Donald Byamugisha, Miccah Songelael Seth, Steven Runo, Nyamongo Desterio, Bernadetha Kimata, Theogene Niyibigira, Dong-Jin Kim, Santie de Villiers, Philip Ndolo, Isaac Wamatsembe, Leta Tulu Bedada, Bouwe Nasona, Seyfu Ketema, Abdalla Mohamed, Clet Wandui Masiga, Michel Ntimpirangeza, Jesse Machuka, Abigail J. Ngugi, Jonathan Matheka, Gitonga Nkanata Mburugu, Morag Ferguson, Geoffrey Mkamilo, Theodomir Rishurimuhirwa, Emmarold E. Mneney, Dan Kiambi, Jean Ndirigwe, and Inosters Nzuki

Subjects
biology, business.industry, Central africa, Sorghum, biology.organism_classification, Ecological intensification, Agricultural economics, Geography, Striga, Agriculture, Agricultural biodiversity, Biotechnology research, business, Productivity
Abstract

The Association for Strengthening Agricultural Research in Eastern and Central Africa (ASARECA) through its Agrobiodiversity and Biotechnology Programme is enhancing the utilization of biotechnology research and development innovations in Eastern and Central Africa (ECA). We present successes in the application of biotechnology to enhance the productivity of cassava, sweet potato, banana, maize and sorghum in ECA. These products—drought tolerant maize, sorghum resistant to striga, as well as the technology for producing and distributing disease free planting materials of cassava, sweet potato and banana to farmers—are central for the agro-ecological intensification of farming systems in the central African highlands.

Published
2014

2. Cost-effective nutrient sources for tissue culture of cassava (Manihot esculenta Crantz)

Author

K.O. Ogero, Maina Mwangi, N. M. Gitonga, Omwoyo Ombori, and Michael Ngugi

Subjects
Root formation, business.industry, Manihot esculenta, Biology, Applied Microbiology and Biotechnology, Acclimatization, Biotechnology, Tissue culture, Horticulture, Murashige and Skoog medium, Nutrient, Micropropagation, Genetics, Sugar, business, Agronomy and Crop Science, Molecular Biology, Tissue culture, cassava, nutrient sources, micropropagation, low cost medium, acclimatization
Abstract

Application of tissue culture technology is constrained by high costs making seedlings unaffordable. The objective of this study was to evaluate the possibility of using locally available fertilizers as alternative nutrient sources for cassava micropropagation. A Low Cost Medium (LCM) whereby the conventional sources of four Murashige and Skoog (MS) macronutrients had been replaced with locally available fertilizers was developed. Stanes Iodized Microfood® from Osho Chemical Industries in Nairobi was used as the alternative source of micronutrients. Modified conventional MS medium was used as the control. Both media were supplemented with 30 g/l of table sugar and 3 g/l of gelrite. Two cassava varieties, Muchericheri and KME 1 were regenerated on the two media. Node, leaf and root formation patterns plus plant height were determined and compared. A reduction of 95.50% in nutrient cost was achieved. The two cassava varieties had a significantly (p < 0.05) higher number of nodes on the conventional medium compared to LCM. There were no differences in node formation by the two varieties on the low cost medium during both initiation and multiplication. KME 1 produced significantly more leaves on the LCM compared to Muchericheri during both initiation and multiplication. Acclimatization of plantlets was successful; hence, this protocol can be adopted in cassava regeneration. Keywords: Tissue culture, cassava, nutrient sources, micropropagation, low cost medium, acclimatization

Published
2012

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