E. Njukwe

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Emmanuel holds a PhD in agronomy from Kyoto University in Japan and works for IITA in Burundi. Emmanuel is fluent in English and French and is experienced in participatory germplasm evaluation, seed production and distribution systems including integrated crop and soil fertility management. He also promotes the development of sustainable seed systems as agricultural enterprise. Emmanuel has written scientific papers, book/book chapters, manuals and factsheets including videos for non-educated farmers and facilitates training for partners, farmers and students.

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Athanassios Tsikliras

Aristotle University of Thessaloniki

Javier delBarco-Trillo

Illinois State University

Natasha Myers

York University

NANCY SOLOMON

Miami University

David Seamon

Kansas State University

Patrick O'Reilly

West Virginia University

Shabib H . Syed

University of the Punjab, Lahore, Pakistan

Okomoda Victor Tosin

University Of Agriculture, Makurdi

Peixin Dong

Hokkaido University

Aristide Maniriho

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Papers by E. Njukwe

Mitigating the impact of biotic constraints to build resilient banana systems in Central and Eastern Africa

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Meeting the Challenge of the Plantain (Musa SPP.) Subsector Economic Restructuring in Cameroon

International Conference on Banana and Plantain in Africa: Harnessing International Partnerships to Increase Research Impact, 2010

Fast-Track Release of Black Leaf Streak Resistant Banana and Plantain (Musa SPP.) Hybrids and Related Technologies to Farmers in Cameroon: A Strategy to Enhance Food Security

International Conference on Banana and Plantain in Africa: Harnessing International Partnerships to Increase Research Impact, 2010

Challenges and opportunities for macropropagation technology for Musa spp. among smallholder farmers and small- and medium-scale enterprises

Banana systems in the humid highlands of sub-Saharan Africa: enhancing resilience and productivity, 2013

ABSTRACT Lack or shortage of healthy and improved planting material is a major constraint to the ... more ABSTRACT Lack or shortage of healthy and improved planting material is a major constraint to the expansion of banana and plantain production. The situation is made worse by the lack of formal systems for producing and distributing quality planting material, thereby forcing farmers to depend on natural regeneration of plants for their supply. This is usually a very slow process, and produces small amounts of planting material that are likely to be contaminated with soil-borne pathogens such as nematodes. To overcome this constraint, several techniques have been developed to rapidly multiply banana and plantain planting material, including micropropagation under aseptic conditions in the laboratory. While micropropagation techniques can provide large amounts of planting material, they are not adapted to the conditions of smallholder farmers. Therefore, user-friendly techniques that require little technical skill or equipment would prove more attractive to adoption by such farmers. The International Institute of Tropical Agriculture (IITA) has been looking at alternative means of producing planting material for wide-scale distribution of improved banana and plantain cultivars. The alternative methods are classified into two categories: field techniques based on complete or partial decapitation of suckers; and the macropropagation of suckers practised away from the field. Treatment of suckers to reduce the risks of transmitting soil-borne contaminants is strongly recommended and forms an integral component of the dissemination package for smallholder farmers. Macropropagation techniques, although genotype dependent, can produce 8–15 new plants/corm within 15 days, while secondary scarification of newly emerging buds has the potential to further increase the number of plantlets by a factor of 2–3, within the same time frame. Plantlets obtained through this method have the uniformity of micropropagated seedlings while being less prone to post-establishment factors in the field. This method is simple and cheap, although it requires some minimum investment to set up propagators and weaning facilities, so it is suitable for small- and medium-scale enterprises. However, its utilization is undermined by several factors, the most critical of which are lack of initial capital investment and technical skills.

First report of the East African cassava mosaic virus -Uganda (EACMV-UG) infecting cassava ( Manihot esculenta ) in Cameroon

New Disease Reports, 2010

... [doi:10.1016/j.jviromet.2008.08.008] Fondong VN, Pitta, JS, Rey MEC, de Kochko A, Beachy RN, ... more

Sustainable intensification of agricultural systems in the Central African Highlands: The need for institutional innovation

Agricultural Systems, 2016

This study identifies entry points for innovation for sustainable intensification of agricultural... more This study identifies entry points for innovation for sustainable intensification of agricultural systems. An agricultural innovation systems approach is used to provide a holistic image of (relations between) constraints faced by different stakeholder groups, the dimensions and causes of these constraints, and intervention levels, timeframes and types of innovations needed. Our data shows that constraints for sustainable intensification of agricultural systems are mainly of economic and institutional nature. Constraints are caused by the absence, or poor functioning of institutions such as policies and markets, limited capabilities and financial resources, and ineffective interaction and collaboration between stakeholders. Addressing these constraints would mainly require short-and middle-term productivity and institutional innovations, combined with middle-to long-term NRM innovations across farm and national levels. Institutional innovation (e.g. better access to credit, services, inputs and markets) is required to address 69% of the constraints for sustainable intensification in the Central Africa Highlands. This needs to go hand in hand with productivity innovation (e.g. improved knowhow of agricultural production techniques, and effective use of inputs) and NRM innovation (e.g. targeted nutrient applications, climate smart agriculture). Constraint network analysis shows that institutional innovation to address government constraints at national level related to poor interaction and collaboration will have a positive impact on constraints faced by other stakeholder groups. We conclude that much of the R4D investments and innovation in the Central Africa Highlands remain targeting household productivity at farm level. Reasons for that include (1) a narrow focus on sustainable intensification, (2) institutional mandates and pre-analytical choices based project objectives and disciplinary bias, (3) short project cycles that impede work on middle-and long-term NRM and institutional innovation, (4) the likelihood that institutional experimentation can become political, and (5) complexity in terms of expanded systems boundaries and measuring impact.

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Agronomic evaluation of common and improved dessert banana cultivars at different altitudes across Burundi

Banana is an important crop for food and income in Burundi. However, average annual yields are lo... more Banana is an important crop for food and income in Burundi. However, average annual yields are low (5 t/ha) because of low and declining soil fertility, and pest and disease pressure. To help overcome the challenges to banana production in the Great Lakes region of Central Africa, the Consortium for the Improvement of Agriculture-based Livelihoods in Central Africa (CIALCA) has been promoting and facil-itating access to new high-yielding, pest-and disease-resistant improved hybrid banana cultivars with good consumer acceptability. The agronomic performance of the improved hybrid 'FHIA-17' and six com-monly grown dessert banana cultivars was evaluated at six sites with contrasting altitudes across Burundi from 2008 to 2012. The data were analysed using linear mixed-effects modelling. 'FHIA-17' significantly outperformed the other cultivars as it had the heaviest bunch weight, was in the group of cultivars with the most hands and fruits, and the fruits were long and th...

TITLE " Agronomic evaluation of common and improved dessert bananas at different altitudes across Burundi "

by J. Kanyaruguru, E. Njukwe, and E. Ouma

Banana is an important crop for food and income in Burundi, however annual yields are low (5 t/ha... more Banana is an important crop for food and income in Burundi, however annual yields are low (5 t/ha) because of low and declining soil fertility and pest and disease pressure. To help overcome the challenges to banana production in the Great Lakes region of Central Africa, the Consortium for the Improvement of Agriculture-based Livelihoods in Central Africa (CIALCA) has been promoting and facilitating access to new high-yielding, pest-and disease-resistant improved hybrid banana cultivars, with good consumer acceptability. The agronomic performance of the improved hybrid 'FHIA-17' and six commonly grown dessert banana cultivars were evaluated at six sites with contrasting altitudes across Burundi from 2008 to 2012. The data was analysed using linear mixed-effects modeling. 'FHIA-17' significantly outperformed the other cultivars as it had the fastest crop cycle and the heaviest bunch weight and was in the group of cultivars with the most hands and fruits and the fruits were long and thick. The cultivars 'ITC 680' and 'Gros Michel' had the next best agronomic performance, whilst the cultivars 'Prata', 'Yangambi Km5', 'Ikigurube' and 'Kamaramasenge' had the poorest performance. The high agronomic performance of 'FHIA-17' obtained in this research demonstrate how it's increased cultivation may help to ensure the continued production of dessert types of bananas in Burundi and food and income security for the population.

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Agronomic evaluation of common and improved dessert banana cultivars at different altitudes across Burundi

by E. Ouma, E. Njukwe, J. Kanyaruguru, and Guy Blomme

Banana systems in the humid highlands of sub-Saharan Africa: enhancing resilience and productivity, 2013

Banana is an important crop for food and income in Burundi. However, average annual yields are lo... more Banana is an important crop for food and income in Burundi. However, average annual yields are low (5 t/ha) because of low and declining soil fertility, and pest and disease pressure. To help overcome the challenges to banana production in the Great Lakes region of Central Africa, the Consortium for the Improvement of Agriculture-based Livelihoods in Central Africa (CIALCA) has been promoting and facilitating access to new high-yielding, pest-and disease-resistant improved hybrid banana cultivars with good consumer acceptability. The agronomic performance of the improved hybrid 'FHIA-17' and six commonly grown dessert banana cultivars was evaluated at six sites with contrasting altitudes across Burundi from 2008 to 2012. The data were analysed using linear mixed-effects modelling. 'FHIA-17' significantly outperformed the other cultivars as it had the heaviest bunch weight, was in the group of cultivars with the most hands and fruits, and the fruits were long and thick. The cultivars 'ITC0680', 'Gros Michel', 'Prata' and 'Yangambi Km5' had the next best agronomic performance, while the cultivars 'Ikigurube' and 'Kamaramasenge' had the poorest performance. The high agronomic performance of 'FHIA-17' shown in this research demonstrates how its increased cultivation may help to ensure the continued production of dessert types of bananas in Burundi and the food and income security of the population.

Download

Mitigating the impact of biotic constraints to build resilient banana systems in Central and Eastern Africa

Download

Meeting the Challenge of the Plantain (Musa SPP.) Subsector Economic Restructuring in Cameroon

International Conference on Banana and Plantain in Africa: Harnessing International Partnerships to Increase Research Impact, 2010

Fast-Track Release of Black Leaf Streak Resistant Banana and Plantain (Musa SPP.) Hybrids and Related Technologies to Farmers in Cameroon: A Strategy to Enhance Food Security

International Conference on Banana and Plantain in Africa: Harnessing International Partnerships to Increase Research Impact, 2010

Challenges and opportunities for macropropagation technology for Musa spp. among smallholder farmers and small- and medium-scale enterprises

Banana systems in the humid highlands of sub-Saharan Africa: enhancing resilience and productivity, 2013

First report of the East African cassava mosaic virus -Uganda (EACMV-UG) infecting cassava ( Manihot esculenta ) in Cameroon

New Disease Reports, 2010

... [doi:10.1016/j.jviromet.2008.08.008] Fondong VN, Pitta, JS, Rey MEC, de Kochko A, Beachy RN, ... more

Sustainable intensification of agricultural systems in the Central African Highlands: The need for institutional innovation

Agricultural Systems, 2016

Download

Agronomic evaluation of common and improved dessert banana cultivars at different altitudes across Burundi

TITLE " Agronomic evaluation of common and improved dessert bananas at different altitudes across Burundi "

by J. Kanyaruguru, E. Njukwe, and E. Ouma

Download

Agronomic evaluation of common and improved dessert banana cultivars at different altitudes across Burundi

by E. Ouma, E. Njukwe, J. Kanyaruguru, and Guy Blomme

Banana systems in the humid highlands of sub-Saharan Africa: enhancing resilience and productivity, 2013

Banana is an important crop for food and income in Burundi. However, average annual yields are lo... more Banana is an important crop for food and income in Burundi. However, average annual yields are low (5 t/ha) because of low and declining soil fertility, and pest and disease pressure. To help overcome the challenges to banana production in the Great Lakes region of Central Africa, the Consortium for the Improvement of Agriculture-based Livelihoods in Central Africa (CIALCA) has been promoting and facilitating access to new high-yielding, pest-and disease-resistant improved hybrid banana cultivars with good consumer acceptability. The agronomic performance of the improved hybrid 'FHIA-17' and six commonly grown dessert banana cultivars was evaluated at six sites with contrasting altitudes across Burundi from 2008 to 2012. The data were analysed using linear mixed-effects modelling. 'FHIA-17' significantly outperformed the other cultivars as it had the heaviest bunch weight, was in the group of cultivars with the most hands and fruits, and the fruits were long and thick. The cultivars 'ITC0680', 'Gros Michel', 'Prata' and 'Yangambi Km5' had the next best agronomic performance, while the cultivars 'Ikigurube' and 'Kamaramasenge' had the poorest performance. The high agronomic performance of 'FHIA-17' shown in this research demonstrates how its increased cultivation may help to ensure the continued production of dessert types of bananas in Burundi and the food and income security of the population.

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E. Njukwe

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