farmer-led seed enterprises of african indigenous vegetables
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Promoting farmer‐led seed enterprises of African indigenous vegetables to boost household incomes and nutrition in Kenya and Tanzania
Daniel Karanja1*, Nasambu Okoko2, Edwin Kiptarus3, Paul Okongo4, Silivesta
Samali5, Alphonce Katunzi6, Hamis Mtwaenzi7, Firoz Mwakitwange7, Victor Afari‐Sefa8, Richard Musebe1, Martin Kimani1 and Lydia Kimenye9
1 CAB International (CABI), PO Box 633‐00621, Nairobi, Kenya 2 Kenya Agricultural Research Institute ‐ Kisii, P O Box 523‐40200 Kisii, Kenya 3 Kenya Seed Company, PO Box 553, Kitale, Kenya 4 Technology Adoption Through Research Organisation (TATRO), PO Box 34‐04061, Yala, Kenya
5Horticultural Research Institute Institute‐Tengeru, PO Box 1253, Arusha, Tanzania 6 INADES Formation Tanzania; PO Box 203, Dodoma, Tanzania 7 Tanzania Official Seed Certification Institute, PO Box 1056, Morogoro, Tanzania; 8 The World Vegetable Center, Regional Center for Africa (AVRDC‐RCA), PO Box 10 Duluti Arusha, Tanzania
9 Association for Strengthening Agricultural Research in Eastern and Central Africa (ASARECA), Plot 5, Mpigi Road, PO Box 765, Entebbe, Uganda *Author for Correspondence: [email protected]; Tel: +254 20 7224462; Fax: +254 207122150 Abstract The problem of food security in sub‐Saharan Africa is aggravated by micronutrient deficiencies, a major impediment to social and economic development. Malnutrition including lack of essential micro‐nutrient deficiency can impair growth and/or cause high mortality, especially among vulnerable populations of women and children. In Kenya and Tanzania, 40% to 45% of pregnant and nursing women suffer from anaemia while 25% to 30% of children under five are stunted and highly susceptible to infectious diseases. African indigenous vegetables (AIVs), including Africa nightshade, Amaranths, Crotalaria, Spiderplant, Jute mallow and African eggplant are rich in micronutrients such as iron, zinc, Vitamin A, and contain non‐nutrient substances called phytochemicals, which help protect people against non‐communicable diseases. Consumers in many parts of Eastern and Central Africa (ECA), especially in urban areas are becoming aware of the nutritive benefits of these vegetables. A growing number of smallholders in turn are striving to take advantage of this renewed interest in the AIVs by growing and supplying them to markets in both the rural areas and in urban centres. AIVs are becoming a common item in major supermarkets and green grocery stores in some countries notably, Kenya, Tanzania, and Uganda, to name a few. However, the potential to meet the growing demand for these vegetables in the region is limited by lack of good quality seeds. The
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majority of farmer use seeds obtained either saved from their own previous crop or from open air markets, which have problems of purity with mean germination rates rarely above 50%. Depending on seeds from such sources also means that farmers have limited access to seeds of improved varieties that meet consumer preferred attributes. Effective seed supply system and an assured market for seed is critical in unleashing the potential of AIVs to improve food security and livelihoods of target communities, and increase adaptation of vulnerable populations. This paper describes the process used and the success achieved in an ongoing pilot project aimed at validating and promoting farmer‐led seed enterprise (FLSE) models for sustainable supply of quality seeds of AIVs. This is being implemented in Kenya and Tanzania, however, the lessons learned on these models will be shared for scaling up in other countries. Three FLSE models are being evaluated: private sector seed company‐mediated model, research‐mediated model and informal grade model. The success of the models is based on development of technical capacities of seed producers as well as building strategic and functional linkages through public private partnership with institutions/organisations in the value chain. Success parameters, such as volumes of quality seed (certified or quality declared depending on country seed regulations) of different AIVs produced and sold, number of smallholder seed growers trained and able to go through the quality assurance are among those used in the evaluation of enterprise models. More than 500 farmers (>40% women) have been trained on quality seed production and post harvest handling. Through the private sector mediated farmer‐led seed enterprises model in Kenya, farmers are earning on average $4,500 per annum from indigenous vegetables seed production. One exceptional farmer earned up to US $ 17,000 in 2010. Similarly, from the training and inspection by the government seed certification agency farmers in Dodoma Tanzania are now producing and selling high quality declared seed of African eggplant, amaranths and nightshade. These are quality seeds, which have been shown to have a mean germination and purity standard above 90%, are in high demand both locally and in Dar es Salaam and fetching good prices of approximately US$ 3 per kilogram. Keywords: African indigenous vegetables, technology, dissemination, farmer, seed enterprise, income, Kenya, Tanzania Introduction Food security, a situation that exists when all people at all times have physical, social and economic access to sufficient, safe and nutritious food that meets dietary needs and food preferences for an active and healthy life (FAO, 2011) consists of three main components: food availability, access and utilization (Lobell and Burke, 2010). Nutrition is an important input for attaining the Millennium Development Goals (MDGs), whereas nutritional status is a key MDG indicator of poverty and hunger, and directly contributes to the MDGs related to health and education. Improved
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nutritional status leads to a focus on gender equity, reduces the risk of child mortality, improves maternal health, and improves ability to combat disease. Undernourishment and malnourishment are used as measures of food security and it is estimated that 925 million of the global population are undernourished. Of these, 239 million (26%) are inhabitants of sub‐Saharan Africa (FAO, 2010).
The problem of food security in sub‐Saharan Africa (SSA) is aggravated by micronutrient deficiencies, also known as “hidden hunger”, a major impediment to social and economic development (FAO, 2010). Malnutrition can impair child growth and causes high mortality, especially among vulnerable populations of women and children. Iron deficiency, for example, during childhood and adolescence impairs physical growth, mental development, and learning capacity. In adults, iron deficiency (anaemia) reduces the capacity to do physical labour and increases the risk of women death during delivery or in the postpartum period (Stoltzfus, 2001). In Kenya and Tanzania, 40% to 45% of pregnant and nursing women suffer from anaemia while 25% to 30% of children under five are stunted and highly susceptible to infectious diseases (WHO, 2002). In addition, zinc deficiency is an important cause of stunting (Brown and Wuehler 2000; Roy et al., 1999; Umeta et al., 2000). Hence, interventions that deal with poor diet quality and related deficiencies of vitamin A, zinc, iron, among others, are important for achieving full food security in vulnerable populations.
African indigenous vegetables (AIVs) including Spiderplant (Cleome gynandra), African nightshades (Solanum villosum and Solanum scabrum), Amaranths1 (Amaranthus spp.) Jute mallow (Corchorus olitorius), Crotalaria (Crotalaria ochroleuca and Crotalaria brevidens) and African eggplant (S. aethiopicum), are traditionally and significant contributors to food security and nutrition for smallholder farmers in the East and Central Africa (ECA) region (Onim and Mwaniki, 2008; Abukutsa, 2010). These AIVs are rich in micronutrients such as iron, zinc, Vitamin A, and contain non‐nutrient substances called phytochemicals, which help protect people against non‐communicable diseases. The Spiderplant, for example, has been reported to relieve constipation and to facilitate child birth (Heever van den and Venter, 2007), while African nightshade has been documented to cure stomach ache (Adesina and Gbile, 1984). The AIVs are also known to contain substantial amounts of antioxidants that scavenge for and bind to harmful radicals, which have been linked to ailments such as cancer, diabetes and cardiovascular diseases. In addition, AIVs improve palatability and add variety to diets, especially those of the poor, and are
1 Amaranth although considered not indigenous to Africa, is included in this context to distinguish it from the more temperate kinds of leafy vegetables like the brassicas (cabbage, etc). Besides, consumers and farmers alike consider amaranth as ‘local’, ‘indigenous’ (mboga ya asili) vegetable.
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particularly valuable sources of food during emergency periods such as during flood, famine, drought and war. AIVs are highly valued in the African diet as accompaniment to carbohydrate‐based staples and have an advantage over staple crops as they have shorter cycles, are faster growing, require little space, can maximize scarce water supplies and soil nutrients better and can be considered less risk‐prone (Weinberger and Lumpkin, 2007) and are rarely affected by common pests and diseases that affect other vegetables (Abukutsa, 2010). Improving food security requires improved productivity, as well as health and nutrition of the undernourished and micronutrient‐deficient children, youth and women. Dietary diversification is important in providing adequate quality nutrition; whereby adopting a food‐based strategy focusing on increased consumption of vegetables, fruits and legumes is a cost‐effective sustainable intervention to the control of nutrient deficiencies and lifestyle disorders (Gockowski et al., 2003). Whereas AIVs contribute significantly to improve nutrition, food security, incomes and overall livelihoods for rural and urban poor, the potential to meet the growing demand for these vegetables in the region is limited by lack of good quality seeds (Onim and Mwaniki, 2008). Although peri‐urban communities grow AIVs to supply commercial up market outlets like super‐markets and green grocery stores, they are often frustrated by poor quality seed. The majority of farmers use seeds either saved from a previous crop or obtained from open air markets. These sources tend to have problems of purity, especially the mixing of different varieties and have mean germination rates rarely above 50% (Onim and Mwaniki, 2008). Farmers needed pure seed to meet the requirement of the market, but such clean quality seed is lacking in the market. This undermines the quality of vegetables produced by farmers. Effective seed supply system and an assured market for seed is critical in successfully unleashing the potential of AIVs to improve food security and livelihoods especially for the most vulnerable populations. For example, when women have an income, they gain more power in household decision‐making and are likely to devote income to household needs and education investments (FAO, 2001). This paper describes the process used and the success achieved in an ongoing pilot project aimed at evaluating promoting farmer‐led seed enterprise models for sustainable supply of quality seeds of AIVs in Kenya and Tanzania. The lessons learnt can be replicated in other countries in the region thus achieving impact, which extends beyond the direct intervention locations. Project Concept and Approach To address the issue of unavailability of quality seeds of AIVs in the region, the Association for Strengthening Agricultural Research in Eastern and Central Africa (ASARECA) in collaboration with CABI and other partners in Kenya and Tanzania initiated the project, “Scaling up farmer‐led seed enterprises for sustained productivity and livelihoods in Eastern and Central Africa”, in December 2009. The project is
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implemented in collaboration with Kenya Agricultural Research Institute (KARI), Kenya Seed Company Ltd. (KSC) and Technical Adoption Through Research Organisation (TATRO) in Kenya. The partners in Tanzania include, Horticultural Research and Training Institute Tengeru (HORTI‐Tengeru), Tanzania Official Seed Certification Institute (TOSCI), INADES‐Formation Tanzania and The World Vegetable Centre, Regional Centre for Africa (AVRDC‐RCA). The key objective of the project is to evaluate three farmer‐led seed enterprise (FLSE) models on AIVs to generate evidence‐based and rigorously analysed conceptual models for economically sustainable enterprises to improve production of seeds of AIVs in the region.
The project fits well with the fourth economic pillar of the Comprehensive Africa Agriculture Development Programme (CAADP) established as part of the African Union and New Partnership for Africaʹs Development (AU/NEPAD). CAADP aims to “improve agricultural research and systems in order to disseminate appropriate new technologies, and increasing the support given to help farmers to adopt them”. The project is closely aligned to the Results2 frame of ASARECA, and as well as to that of ASARECA’s, Knowledge Management and Up‐scaling (KMUS) Programme. It contributes directly to the ASARECA’s Purpose of “enhanced utilisation of agricultural research and development innovations in ECA” and three of the five ASARECA results (Outputs). As an action oriented research activity, the project is catalysing uptake, by increasing the availability of quality seeds of improved varieties of AIVs in uptake pathways in the project areas (ASARECA Result 2), and adding value by using quantitative and qualitative methods to rigorously analyse options for scaling‐up. Participatory approaches used by the multidisciplinary team in Kenya and Tanzania in the identification of knowledge gaps and in the implementation of capacity building programme for both men and women through the training of trainers and farmers, contributes towards promotion of gender and social equity, thus ensuring validity and legitimacy of the findings (ASARECA Result 4). This is in tandem with ASARECA’s strategic plan for gender mainstreaming. The emphasis on dissemination, including the formulation of guidelines and recommendations for use beyond the end of the project, will enhance availability of the knowledge generated by the project especially on the farmer‐led
2 1. Strengthened gender responsive governance and management systems in ASARECA 2. Enhanced generation of demand driven agricultural technologies and innovations 3. Enhanced adoption of policy options by decision makers to improve performance of the agricultural sector in ECA 4. Strengthened capacity for implementing agricultural research for development in ECA 5. Enhanced availability of information on agricultural innovation in ECA
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seed enterprise models for producing AIV seeds and promote sustainability and replicability (ASARECA Result 5).
The methodology consisted of a regional inception workshop, followed by local in country inaugural workshop, where various stakeholders including change agents in working in the AIVs value chain, were identified, brought together and actively involved in the design and implementation of the project activities. Staff in the government extension, Non‐governmental organisations and Community‐based organisations, Researchers and Universities, Regulatory bodies, Seed companies, and Farmer seed growers (individual/group) were identified, noting that other actors were identified that were recognised as being important to indigenous seed systems, but that the project may only work with indirectly. During the workshop a design worksheet for the programme framework and a gender‐sensitive strategy map was developed. The strategy map represents the activities that the project will undertake to directly influence the identified change agents (individual, group or organization) or indirectly at the environment in which the change agents operate to achieve the desired project outcome.
Using a multistage random sampling procedure, a baseline survey was first conducted at the beginning of the project to establish the pre‐adoption socio‐economic situation and production practices of the participating farmers. During the surveys, participatory analysis of needs and constraints of AIV seed growers and markets, as well as existing agronomic practices and post‐harvest handling was undertaken. This formed the basis for subsequent activities including, mobilisation of farmers, development of a participatory training programme for master trainers and farmers (seed growers) to build the capacities in local production and marketing of quality seed of identified priority AIV crops in respective country. With the technical support of ASARECA’s Monitoring and Evaluation Unit, as well as the Gender mainstreaming department, a project performance monitoring plan, with clear gender‐sensitive indicators for tracking project progress was developed. Given the strong capacity strengthening element and model evaluation aspects imbedded in the project approach, the monitoring and lessons learning processes adopted in the project are augmented by outcome mapping.
Achievements Identification and validation of farmer‐led seed enterprise models Based on the existing seed policy and regulations regarding production and marketing in Kenya and Tanzania, three farmer‐led seed enterprise models for AIVs
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are being evaluated. First is the private sector seed company‐mediated model, where farmers in western Kenya were linked to a private seed company, the Kenya Seed Company Ltd., through its subsidiary, Simlaw, which is engaged in vegetable seed marketing in East Africa. The process involved registration of the seed growers and working closely with seed inspectors from the Kenya Plant Health Inspectorate Services (KEPHIS) for seed inspection. In Tanzania, linkage of farmers in Arusha region to East African Seed, Multiflower/Mkulima, Iffa Seed, Kibo Seed and Meru Agro‐Tours seed companies is underway with the Tanzania Official Seed Certification Institute (TOSCI) maintaining quality control of the seeds produced. Secondly, a research‐mediated model is being explored, where farmers are organised in groups to work with a National Agricultural Research Institute to produce quality seed. In Kenya, the groups are working with the Kenya Agricultural Research Institute (KARI). Through KARI seed merchant licences, the farmers are facilitated to operate because on their own, they have not yet qualified to have their seed certified. In Tanzania, farmers are working with the Tanzania TOSCI and were able to produce and packaged quality declared seed (QDS) of African eggplant, Amaranths and Nightshade. As a result of these efforts, the farmers in the two countries have improved along the scale and could soon be registered to produce certified seed. Parallel to the regulated and QDS systems is a third model, the informal grade improvement model. In this model, seed of African indigenous vegetables is improved and distributed to farmers as distributed to farmers as starter seed, which they sell in the open market. This has expanded the reach of quality seed to those who cannot get certified or quality declared seed. Strengthening of capacities of seed growers Building the capacity of farmers to produce and market seeds of AIVs as an enterprise contribute towards promotion of agriculture and food security both at the local, national and regional level. A training curriculum on AIV seed production was developed based on the identified needs for the farmer‐led seed enterprises and used to train farmers. The training covered the technical aspects of seed production including participatory approaches, enterprise selection, identification of seed production sites, nursery management, good agricultural practices for crop, pests and disease management, isolation distance, rouguing of off‐types, harvesting and post–harvesting, record keeping, seed business management, seed regulation and marketing. A training of trainers (ToT) course was carried out for 19 farmers (7 women) in Kenya and 10 farmers (3 women) in Tanzania. After the training, the ToT graduates conducted season‐long farmers training in the identified project sites, in line with the cropping season and the stage of growth of the respective AIV seed crop. A total of 340 farmers (42.4% women) have so far been trained in western Kenya. The farmers used the knowledge to improve their production of African nightshade, Crotolaria, Jute mallow and African eggplant seed.
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Preliminary data for the private sector mediated model shows that a smallholder can profitably produce African indigenous vegetable seed. Forty five (35 male, 10 female) farmers are currently engaged in the model (Figure 1), with the majority of the farmers having more than one seed crop. In Kenya the farmers earned on average $ 4,500 per year3 from indigenous vegetables with an exceptional farmer earning as high as $ 17,000 per annum through the seed company mediated farmer led seed enterprises (Figure 2). It was noted that the productivity (seed yield/acre) increased by 10.6%, 40.1% and 59.4% for Nightshade, Jute Mallow and Crotalaria, respectively, during the second cropping season. This is attributed to the improved management (good agricultural practices) of the seed crops employed by the farmers as a result of the trainings conducted under the current project.
Figure1. Number of famers producing seeds of African indigenous vegetables under a private sector seed company‐mediated model in western Kenya during the 2010 cropping seasons
3 1US$ = Ksh 80
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Figure2. Income from production of seeds of African indigenous vegetables under a private sector seed company‐mediated model in western Kenya during the 2010 cropping seasons In addition to the training, the project initiated the development of descriptors and bulking of foundation seed for Spiderplant and Amaranths to ensure sustainable supply of starter seed to growers in Kenya who have no formal contracts with seed companies. The breeder seed originally obtained from the World Vegetable Centre‐Regional Centre for Africa and subsequently improved and maintained by Lagrotech Seed Company was used. It is estimated that, with an average yield of 172Kg per acre, the starter seed of Spiderplant so far produced would be able to generate an income of US$ 7,785.00 per acre, within one cropping season. From the training and inspection by the government seed certification agency, farmers in Dodoma, Tanzania the farmers are now producing and selling high quality seed. For example, the farmers are producing seed of African Eggplant with mean germination rate and seed purity rate of 94%; Amaranths with mean germination rate and seed purity rate of 92%; Nightshade with mean germination rate and seed purity rate of 99% (Table 1). The seeds are in high demand locally and in Dar es Salaam and fetching good prices of about US$ 3 per kg.
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Table 1. Quantity and quality standards of Quality Declared Seed (QDS 1) produced by farmers in Dodoma, during the 2010/11 cropping season. Crop Yield (Kg)
Female Male Total African eggplant ‐ 4.0 4.0 Amaranths 75.0 585.0 660.0 Nightshade 3.5 2.8 6.3
Germination (%)Female Male Mean
African eggplant ‐ 94.0 94.0 Amaranths 92.2 92.3 92.3 Nightshade 98.0 100.0 99.0
Purity (%)Female Male Mean
African eggplant ‐ 94.0 94.0 Amaranths 92.2 92.3 92.3 Nightshade 98.0 100.0 99.0 Group strengthening and institutional capacity building. Strengthening of farmers’ seed enterprise consisted of first sensitising the farmers to the interest of engaging in seed production as a group and as a profitable business. Through participatory process the farmers groups were organised into better structured autonomous producer groups each with a democratically elected leadership and constitution. The groups were assisted to register to have a legally recognised status, which is essential to build trust and a sense of security among the group members. This can also facilitate the group to have access to financial services for savings and credit. For example, following the training on marketing and governance, two farmer groups, the Akikieun Vegetable Growers Group and the Korosiondet Kilimo Bora self‐help group in Kenya were formalised and registered as a community‐based organisation to maximise economies of scale. The groups also provide mechanism for information sharing. Contribution to promoting improved technologies in uptake pathways With the strong linkage with research institution, both NARs and the African Vegetable Research and Development Center, Regional Centre for Africa ( AVRDC‐RCA) improved varieties have been tested and selected by farmers for promotion. Because the market for AIV is characterised by variations in consumer preferences seed producers are able to access varieties that meet these market niches. For example, some consumers (especially in urban cosmopolitan areas) tend to prefer variants of African nightshade that are less bitter and in such cases, growers can have access to quality seeds of the broad leafed variety. Other consumers for example in western Kenya prefer the more bitter varieties. The linkages of the seed
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producers with research, has enable good access to foundation seed of these varieties. In these processes improved varieties of different kinds of the AIV handled in the project are now in uptake pathways in Kenya and Tanzania (Plate 1).
Plate 1: Smallholder farmers harvesting leaves of Spiderplant (left) and Amaranths (right) in western and central Kenya, respectively. Contribution to food security and poverty alleviation Through testimonials by participating farmers in Kenya and Tanzania, the project is making significant contribution towards people’s livelihoods. The vegetables are contributing towards food and nutrition security. Through crop diversification, the vegetable production as well as the seed enterprises significant changes in household incomes are beginning to emerge through income earned from the seed business. For example, Mrs. Michel Orone, a window who is engaged seed production under the private sector seed company mediated model (contracted by Kenya seed Company) has built a permanent house from incomes earned from selling quality seed of Nightshade, Crotalaria and beans. Mrs Orone used part of her income from the sale of seeds to pay school fees (US$ 750) for her two grand children (orphans) in secondary school. In addition, during the 2010 cropping season she employed on average eight casual labourers (men and women) for three months, each earning approximately US$1.5 per day. More testimonies including farmers being able purchase motor cycles worth US $750 each are being documented. Similarly, Mr and Mrs Boazi Sebai quality declared seed growers in Kongwa, Tanzania spent Tsh 80,000 (US$ 47) for all expenses to grow seed including buying improved seeds. They harvested 300kg of amaranth seed which they sold and earned a total of Tsh 750,000 (US$ 440). From these proceeds they are constructing a permanent house (Plate 2).
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Plate 2: Mr and Mrs Boazi Sebai (left) in their Amaranths seed multiplication plot and their house (right), under construction using proceeds from sale of the seeds, in Kongwa District, Dodoma, Tanzania.
Lessons learnt • Production of quality seeds of African indigenous vegetables requires a range of
skills and capacities at various levels, from planning, management of seed production and marketing. This requires skilled and knowledgeable people at all levels in the seed value chain.
• Improving farmers’ skills and knowledge in seed quality management, post harvest handling and marketing could enhance uptake.
• Besides technical support, financial supports for seed production is essential to enable the farmers acquire the required inputs and simple labour‐saving technologies for wet seed processing for crops such as Nightshade.
• Farmer‐ led seed enterprises can prosper under favourable policy environment and with the needed capacities and effective linkages being in place.
• The linkages between the seed growers, seed companies, and research and development organisation/institutions have enabled the seed growers to acquire relevant skill to improve productivity. The agricultural extension system needs to continue sensitising farmers to use quality seed.
• Success of farmer‐led seed enterprises is based on strengthening institutional, technical and organisation/governance of the groups, partnership with regulators for seed quality control and provision of basic seed.
• Given that both men and women as well as the youth are involved in the farmer‐ led seed enterprises contribute to gender empowerment and development
• Strengthening of s seed producers groups, provide a mechanism for information sharing among the smallholder farmers aiming at improvement in their knowledge and skills in seed production and marketing.
• While the current project was based on an identified lack of seed and therefore, focused of development of seed enterprises, the continued flourishing of these businesses require continued growth in demand for vegetables and in turn for
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seed. A sustained demand for the vegetables in both local and urban markets in country and in similar neighbouring countries is necessary to expand market for the seed. Similarly, sensitization of smallholders on the need to use quality seed would also boost the growth and sustainability of the emerging AIV seed enterprises.
Conclusion The farmer–led seed enterprises on African indigenous vegetables being validated are contributing towards food and nutrition security through crop diversification, as well as the improvement of the livelihood through income earned from the seed business. The success of farmer‐led seed enterprise models on African indigenous vegetables is based on building good partnerships with wide range of institutions/organisations for identifying, establishing and training seed growers groups. Building partnerships around these institutional linkages has been essential for the success of the project. This requires commitment of all partners, growers as well as local, regional and international research and development agencies. Continuous support of farmer led seed enterprises through capacity building of seed growers particularly in seed production and marketing is necessary to ensure that they will become more efficient and profitable. References Abukutsa, M.O.O. 2010. African Indigenous Vegetables in Kenya: Strategic
repositioning in the Horticulture Sector. Second Inaugural Lecture of the Jomo Kenyatta University of Agriculture and Technology, Friday, 30th April 2010. ISBN 9966‐923‐31‐4., 63 pages.
Adesina, S.K. and Gbile, Z.O. 1984. Steroidal constituents of Solanum scabrum subsp. nigericum. Fitoterapia 55 (6): 362‐363.
Brown, K. H., and S. E. Wuehler, eds. 2000. Zinc and human health: Results of recent trials and implications for program interventions and research. Ottawa, Canada: The Micronutrient Initiative/International Development Research Centre.
FAO. 2011. The state of food insecurity in the world. Rome, Food and Agriculture Organization of the United Nations.
FAO. 2010. State of food insecurity in the World. Food and Agriculture Organization of the United Nations, Rome, Italy. http://www.fao.org/ docrep/013/i1683e/i1683e.pdf. Accessed on November. 14, 2011.
FAO. 2001. The State of Food and Agriculture. Women in Agriculture: Closing the gender gap for development. Food and Agriculture Organization of the United Nations, Rome, Italy. http://www.fao.org/docrep/013/i2050e/ i2050e.pdf. Accessed on November 14, 2011
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Gockowski, J., Mbazo’o, J., Mbah, G. and Moulende, T.F. 2003. African traditional –leafy vegetables and the urban and peri‐urban poor. Food Policy, 28: 221‐235.
Heever, E. van Den and Venter, S.L. 2007. Nutritional and medicinal properties of Cleome gynandra. Acta Horticulturae, 752: 127‐130.
Lobell, D. and Burke, M. 2010. Climate change and food security, adapting agriculture to a warmer world. Springer.
Onim, M. and Mwaniki, P. 2008. Cataloguing and evaluation of available community/farmers‐based seed enterprises on African indigenous vegetables (AIVs) in four ECA countries. 95pp.
Roy, S. K., A. M. Tomkins, R. Haider, et al., 1999. Impact of zinc supplementation on subsequent growth and morbidity in Bangladeshi children with acute diarrhoea. Eur J Clin Nutr 53: 529‐534.
Stoltzfus, R. J. 2001. Defining iron‐deficiency anaemia in public health terms: A time for reflection. Journal of Nutrition, 131: 565S‐567S.
Umeta, M., West, C.E., Haidar, J., Deurenberg, P. and Hautvast, J.G. 2000. Zinc supplementation and stunted infants in Ethiopia: A randomised controlled trial. Lancet, 355: 2021‐2026.
Weinberger and Lumpkin, 2007. Diversification into horticulture and poverty reduction: A research agenda. World Development 35:1464–1480.
World Health Organization. 2002. Nutrition program (Bruno de Benoist, Ines Egli), Micronutrient Deficiency information system, Iron Deficiency Anaemia. World Health Organization. Geneva.
Acknowledgement The work described in this paper was conducted as part of the activities in the Project No. P056‐09‐P7‐01‐003 entitled, “Scaling up farmer‐led seed enterprises for sustained productivity and livelihoods in Eastern and Central Africa”. This project is financed through the Multi Donor Trust Fund (MDTF) to Association for Strengthening Agricultural Research in Eastern and Central Africa (ASARECA). The advisory and technical support from Dr Lydia Kimenye, Knowledge Management and Up‐scaling Programme Manager is also gratefully acknowledged.