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Expansion and impact of cassava brown streak and cassava mosaic diseases in Africa: A review

Author or Institution as Author
Patrick C. Chikoti1*, Mathias Tembo1
Date of publication
Edition or Version
1.00
Institution
ZARI
File format
Description/Abstract

Africa produces over half of global cassava; however, the continent’s average yield is below the potential yields achieved under experimental conditions. Many factors contributing to low yield  include lack of quality varieties, poor soils, limited access to capital, competition for labour, as well  as pests and diseases. Plant diseases are the major biotic constraints to cassava production and have  caused considerable food insecurity in Africa. Although there has been some level of disease  management which has contributed to the increase in cassava production, the two viral diseases:  cassava mosaic disease (CMD) and cassava brown streak disease (CBSD) still claim between 30- 16 40% and upto 70%, respectively of Africa’s cassava harvest. Given the importance of the two  diseases in Africa, we review the expansion of CBSD and CMD; impacts of the two diseases on food  security and how they can be managed. We provide insights in the spread of the two diseases,  management efforts, and future directions

Other Partners

CEEC

Keywords
CBSD, CMD, impact, expansion, Africa
Contact name (for further information)
Patrick C. Chikoti1*, Mathias Tembo1
Contact email (for further information)
Contact institution (for further information)
ZARI, CEEC
Citation

Chikoti,P., & Tembo.,M, (2022). Expansion and impact of cassava brown streak and cassava mosaic diseases in Africa: A review [online]. Available at Frontiers | Publisher of peer-reviewed articles in open access journals (frontiersin.org)

CCARDESA Category

Maize and groundnut crop production among rural households in Zambia: Implications in the management of aflatoxins

Author or Institution as Author
Mathias Tembo
Co-authors

Mary Lubungu, Fwasa K. Singogo, Mike Mwanza, Mathews Onyango,  Patricia Sakala, Mary Pat Selvaggio, Edna Berhane

Date of publication
Edition or Version
1.00
Institution
ZARI, IAPRI, NFNC, Khulisa
File format
Language
Gender marker
Youth marker
Description/Abstract

Maize and groundnut are important crops for both commercial and smallholder farming in Zambia, whose production is being threatened by their susceptibility to aflatoxin contamination. Despite this threat, there is limited knowledge of household growers’ behaviour and applications related to suitable agricultural management practices, as well as growers’ perception and knowledge of aflatoxins and their effects. This limited knowledge has major implications for acute human health effects such as liver cirrhosis and death, cancer, stunting in children, immune system suppression, impaired food conversion, and reduced livestock productivity and/or increased livestock mortality. This cross-sectional survey of smallholder household growers in Zambia was conducted to identify the gaps in the knowledge and application of aflatoxin-associated agricultural management practices. A sample of 3865 maize- and groundnut-producing smallholder farm households were selected in 27 priority districts implementing the Scaling Up Nutrition (SUN)/First 1000 Most Critical Days Programme (MCDP) Phase II. Among the five pre-harvest management practices for maize and groundnuts – namely, controlling weeds, timely planting, controlling pests, and applying basal and top-dressing fertilisers – few households (8%) reported practising all of them. Among the recommended techniques for harvesting and handling maize and groundnuts, the most common harvest-management practices under maize production were drying (95.2% of households) and sorting at harvest (72%). In contrast, very few households (2%) practised at least three of four maize harvest management practices. Similarly, very few households (10%) practised at least 4 of the 6 groundnut harvest-management measures. Comparatively, post-harvest and storage management practices were more commonly practised, although most households did not practise all six post-harvest and storage management measures. Overall, very few households (1% for maize and 4% for groundnuts) were observed to be practising at least 12 of the 14 recommended management practices, implying that there are considerable gaps in the implementation of aflatoxin-related management practices along all stages of maize and groundnut production, consequently posing a significant threat to health and contributing to malnutrition levels in Zambia. As such, there is a need to develop tailored interventions and trainings for farming households, extension officers, and frontline health workers to prevent and manage aflatoxin contamination at different stages of crop production. Furthermore, the elimination of policy constraints, practical barriers of affordability and consumer awareness, and the value attached to the commercial product of Aflasafe, noted to reduce aflatoxin contamination by 80–100%, are of utmost urgency.

Keywords
Maize
Groundnut
Rural households
Aflatoxins
Agricultural practices
Management
Contact name (for further information)
Mathias Tembo
Contact email (for further information)
Contact institution (for further information)
ZARI
Citation

Tembo,M.,* ,Lubungu ,M.,  Singogo ,F., Mwanza, M.,Onyango, M., Sakala, P., Selvaggio,M., & Berhane,E., (2023). Maize and groundnut crop production among rural households in Zambia: Implications in the management of aflatoxins [online] Food Control

 

CCARDESA Category

Genetic Divergence and Selection of Common Bean Genotypes with High Agronomic Performance in Mozambique

Author or Institution as Author
J. Dique
Co-authors

C. Pedro, C. Fernando, G. Silota, L. Savanguane, L. Bungala, P. Manhoca, A. Charimba, M. Miguel, M. Quinhentos, D. Dias, V. Carneiro

Date of publication
Edition or Version
1.00
Institution
Agricultural Research Institute of Mozambique and others
File format
Language
Gender marker
Youth marker
Description/Abstract

The deep knowledge of genetic diversity in access, in the breeding program, and the contribution of genetic factors as well as the phenotypic expression is of extreme importance for the development of new cultivars and maintenance of the program. This research aimed to study the genetic diversity and selection of the best common bean genotypes with high agronomic performance in the Agrarian Station of Sussundenga-Mozambique. Twenty-two common bean genotypes were evaluated in a randomized block design with three repetitions in the 2021/2022 agricultural season. The agronomic characteristics evaluated were: the number of days to flowering, plant height, plant architecture, number of pods per plant, the weight of 100 seeds, and grain yield. The data obtained were submitted to individual variance analysis, followed by the Scott-Knott grouping test. For the effect of genetic divergence between the genotypes, multivariate analysis was used based on the generalized Mahalanobis distance and Tocher optimization method, UPGMA, and canonical variables for the projection of distance in the 2D plane. It was also verified by the Cophenetic Correlation Coefficient. The Singh criterion (1981) was used, indicating the characteristics Number of pods per plant (42.81%), the weight of 100 seeds (19.59%), and Plant height (16.08%) as the most important for the genetic divergence of bean genotypes.

Other Partners

Univesridade Federal de Lavras, Departamento da Biologia, Instituto de Ciênciaas Naturais

Keywords
Phaseolus vulgaris L. UPGMA, generalized Mahalanobis distance.
Contact name (for further information)
J. Dique
Contact email (for further information)
Contact institution (for further information)
Agricultural Research Institute of Mozambique
Citation

Dique, J., Pedro C., Fernando, C., Silota, G., Savanguane, L., Bungala, L., Manhoca, P., Charimba, A., Miguel, M., Quinhentos, M., Dias, D., Carneiro, V. (2022. Genetic Divergence and Selection of Common Bean Genotypes with High Agronomic Performance in Mozambique. Journal of Agriculture, Food and Environment (JAFE). Vol 3 No 4 December 2022 Pages 27-33 e-ISSN 2708-5694

CCARDESA Category

Mecanismos de Ligação entre a Investigação e Extensão Agrária em Moçambique

Author or Institution as Author
Filimone, C.
Co-authors

Alage, A., Divage, B.

Date of publication
File format
Language
Gender marker
Youth marker
Description/Abstract

RESUMO

A necessidade de fortalecimento da ligação entre a investigação e a extensão (inv&ext) em Moçambique é evidente em vários documentos do setor agrário, desde a década de 1990, e há desconforto na adoção dos modelos de reforço da ligação que têm sido propostos, porque se acredita que existem mecanismos funcionais, ao nível local, que nunca foram considerados e nem estão documentados. A corrente pesquisa analisou as práticas de colaboração e comunicação entre a inv&ext agrária nas províncias de Maputo e Nampula, envolvendo uma amostra de 144 técnicos. A pesquisa revelou que existe uma comunicação frequente e regular entre a inv&ext que tem sido direta e informal. Alguns fatores ligados ao fraco financiamento das atividades de ligação, desmotivação dos técnicos para cooperar, falta de partilha de informação e conhecimentos influenciam negativamente a relação entre estes dois setores.

Palavras-Chave: geração e disseminação das tecnologias; ligação investigação e extensão; partilha de informação, Moçambique.

ABSTRACT

The need to strengthen the linkage between research and extension in Mozambique is evident in several documents of the agricultural sector, since the 1990s. However, there is a discomfort in the adoption of the proposed models for strengthening the linkage, because it is believed that there are functional mechanisms, at the local level, that have never been considered and are not documented. The current research analyzed the collaboration and communication practices between agricultural research and extension in the provinces of Maputo and Nampula, involving a sample of 144 technicians. The survey revealed that there is frequent and regular communication between research and extension, which has been direct and informal. Some factors like the weak funding of linkage activities, lack of motivation of technicians to cooperate, lack of information and knowledge sharing, negatively influence the relationship between these two sectors.

Keywords: generation and dissemination of technologies; research and extension linkage; sharing information, Mozambique.

Keywords
Geração e disseminação das Tecnologias; ligação investigação e extensão; partilha de informação, Moçambique
Contact name (for further information)
Carlos Filimone
Contact email (for further information)
Citation

Filimone, C., Alage, A., & Divage, B. (2022). Mecanismos de Ligação entre a Investigação e Extensão Agrária em Moçambique. Revista De Extensão E Estudos Rurais, 11(1), 1–24. Recuperado de https://periodicos.ufv.br/rever/article/view/14060

Climate Smart Agriculture (CSA) HandBook

Content Type
Author or Institution as Author
CCARDESA
Co-authors

AICCRA, CGIAR, GCCA+

Funding Partner
Date of publication
Edition or Version
1.00
Institution
CCARDESA
File format
Language
Gender marker
Youth marker
Description/Abstract

This Climate Smart Agriculture (CSA) handbook has been developed as a resource material for use by CSA practitioners in providing training, policy advocacy, and upscaling CSA technologies and practices for improving sustainable productivity, adapting to the effects of climate change, and mitigating climate change.

Contact name (for further information)
Prof Cliff Sibusiso Dlamini
Contact email (for further information)
Contact phone (for further information)
+2673914997
Contact institution (for further information)
CCARDESA
Citation

CCARDESA (2023), Climate Smart Agriculture (CSA) Handbook (1st ed.) Gaborone, Botswana.

CCARDESA Category

HOW TO DO NOTE ON DISSEMINATING MESSAGES THROUGH DIGITAL MEDIA

Author or Institution as Author
SAPP Malawi
Date of publication
Edition or Version
1.00
Institution
Department of Agriculture Extension Services, Malawi
File format
Language
Gender marker
Youth marker
Description/Abstract

The use of digital media in collection and disseminating information on various farming technologies and interventions has improved accessibility of information and feedback. It involves the collection and transmission of digitized content through the internet or computer networks and offline mobile applications (app). This includes text, audio, video, and graphics. The Agriv1(agriculture extension application) and Ulimi ndi Nyengo (web-based platform that transmits agriculture advisory services) were rolled out to perform stated actions. The agriculture extension applications and one of the social media platforms, Facebook were used in the dissemination of information through digital media. This form of technology through which information was shared provided end users or project beneficiaries’ easy access to vital information on interventions being implemented by the project.

Keywords
ICT, DIGITAL, MEDIA
Contact name (for further information)
Upile Faith Muhariwa
Contact email (for further information)
Contact phone (for further information)
+265993155272
Contact institution (for further information)
rexbaluwa@sapp.mw
Citation

SAPP Malawi (2003)How To Do Note On Disseminating Messages Through Digital Media

CCARDESA Category

APPSA LESOTHO INTRODUCES ROAD CONSTRUCTION FIRM TO THE COMMUNITY

Author or Institution as Author
Department of Agricultural Research
Funding Partner
Date of publication
File format
Language
Description/Abstract

To strengthen the institutional and enabling environment for technology adoption through upgrading and development of research infrastructure, APPSA engaged a design and supervision firm to undertake civil engineering designs for the proposed construction of infrastructure planned to enable enhancement of RCOL in Horticulture. This was followed by engagement of contractors who are to construct and build the infrastructure.

CCARDESA Category

Guidelines for Capturing Information and Knowledge Products for CCARDESA

Content Type
Author or Institution as Author
CCARDESA
Co-authors

Stephen Opiyo and Fally Masambuka

Funding Partner
Date of publication
Edition or Version
1.00
Institution
CCARDESA
File format
Language
Gender marker
Youth marker
Description/Abstract

This document is about the Guidelines for Capturing Information and Knowledge Products for CCARDESA

Other Partners

IFAD

Keywords
Guidelines for Capturing Information and Knowledge Products for CCARDESA
Contact name (for further information)
Baisti Podisi
Contact email (for further information)
Contact institution (for further information)
CCARDESA
Citation

CCARDESA(2021) Guidelines for Capturing Information and Knowledge Products for CCARDESA (p88), Gaborone, Botswana

CCARDESA Category

APPSA Lesotho trains staff on the technical administration and customization of the new website

Author or Institution as Author
Department of Agricultural Research
Date of publication
File format
Language
Description/Abstract

Five officials comprising of three (3) Information technology Officers from the Ministry of Agriculture Food Security and Nutrition (MAFSN); One Information technology Officer from DAR as well as the ITKM Specialist from APPSA Project Implementation Unit (PIU) attended the website training in Maseru, Lesotho from the 10th – 11th May, 2023. The training was designed to improve the skills on the customization and administration of the DAR website to respond to growing demands from external and internal stakeholders. Five officials comprising of three (3) Information technology Officers from the Ministry of Agriculture Food Security and Nutrition (MAFSN); One Information technology Officer from DAR as well as the ITKM Specialist from APPSA Project Implementation Unit (PIU) attended the website training in Maseru, Lesotho from the 10th – 11th May, 2023. The training was designed to improve the skills on the customization and administration of the DAR website to respond to growing demands from external and internal stakeholders.

Partners
CCARDESA Category
Subscribe to Document

Funding Partners

4.61M

Beneficiaries Reached

97000

Farmers Trained

3720

Number of Value Chain Actors Accessing CSA

41300

Lead Farmers Supported