Nigeria, West Africa produces yam in vast quantity and is accounting for about 70% of the world's total yam production, and because of this, it is the termed the largest producers of yams globally followed by Côte d'Ivoire and Ghana respectively. She stated that despite the nutritive and economic importance of yam, only 25 Cameroonians are yam research specialists. Yams aren't grown from seeds like most other … session so others can sign in. Author(s) : Lyonga, S. N. Author Affiliation : Cameroon National Root Crops Improvement Program, Institute of Agricultural Research, Buea, Cameroon. Surveys were conducted in Cameroon to determine the incidence and severity of yam mosaic disease and associated viruses in 124 yam farms in four agro-ecological zones in 2014 and 2016. This review highlights research gaps in the yam production chain, which can be exploited to enhance production in the country. The tubers can potentially grow to a length of 4.9 feet and a height of between 3 to 6 inches. yam species commonly grown and consumed in West and Central Africa [2]. Yam (Dioscorea spp.) The tubers are put 5 cm deep into the soil. ), producing about one million tons,in 1978. Although it can be cultivated alone, it is mostly grown with yam or maize. Yam (Dioscorea spp.) cultivation has the potentials to greatly contribute to poverty alleviation and food security, in Cameroon. ... Street market in poor neighborhood of Grand Moulin Douala Cameroon West Africa with stalls selling plantain yam cooking oil A man sells potatoes, pineapples, and onions at a roadside market in Nigeria's Niger State. Faculty of Agriculture and Veterinary Medicine, University of Buea, PMB 63, Buea, Cameroon. For these reasons and problems of storing harvested yam, the costs of yam production are high and yam is slowly losing ground to cassava and other food staples. A survey was carried out in three ecological zones to find out the constraints and prospects to yam production. The first is the high rainfall region of western Africa, from the Ivory Coast to Cameroon. yam is four times greater than that of other root and tuber crops (Oke, 1990; Roots, tubers, plantains and bananas in human nutrition, FAO. 380_58 the economics of yam (dioscorea spp.) The soil should be sandy, but too clayey soils do not suit Yam cultivation. During the vegetative phase it needs distributive rainfall, humid and warm weather, during the corm development … Then bamboos of about 2 meters high for each seedling are staked to direct the vines of the yam for adequate sunlight to reach the crop. is a very important common food crop in West Africa. Find out more about this exciting new development, Using our new visualization tools you can, Using our new highlighting and annotation tool you can, remove selected records that are not saved in My CABI, sign you out of your Minisett technology is also gaining grounds. 67, Dschang, Cameroon. Yam is the name given to several plant species in the genus Dioscorea including Dioscorea alata (white yam), Dioscorea bulbifera (potato yam), Dioscorea cayenensis (yellow yam), Dioscorea esculenta (Asiatic yam) and Dioscorea batatas (Chinese yam) that are grown for their edible tubers. The full production potentials of yams have not been exploited, leaving Cameroon with an annual production of 648,407 metric tons (MT) at the sixth position, among the six countries of the West African yam zone, with 67.3 million MT. A yam researcher at the University of Buea, Dr. Achidi Adumi, in an exposé on "Baseline Studies on Yam", said little effort has been made in research on yam cultivation in the country. Some of these species are water yam (Dioscorea alata), white yam (D. rotundata), yellow yam (D. cayennensis), lesser yam (D. esculenta) and three-leaf yam (D. dumetorum). Afterwards, they are removed to a bed of 1metre wide and 20 cm high. The yam marketing system is poorly organized, and hinders farmers from reaping optimum benefit from the activity. Maize is the most important food crop, followed by wheat and barley. African market. A yam researcher at the University of Buea, Dr. Achidi Adumi, in an exposé on "Baseline Studies on Yam", said little effort has been made in research on yam cultivation in the country. Yam (Dioscorea spp.) Yam tubers tend to have different sizes ranging from the size of a small potato to more than 130 pounds. ), production, Cameroon. This is to ensure that we give you the best experience possible. This article is published under the terms of the Creative Bell 157 Introduction of flour from Dioscorea dumetorum in a rural area G. Martin, S. T'reche, L. Noubi, T. Agbor Egbe, and S. Gwangwa'a 161 Cocoyams, Sweet Potatoes, and Others Yam cultivation in the Gonja triangle, Damango district, Ghana. Growing Slips For Planting Start growing the sprouts. There are over a hundred and fifty varieties of yams available worldwide but in Cameroon, we recognize but a few which thrive better in our climatic conditions; White yam … … South Africa reported a total of 2344.6 thousand metric ton of maize production in 2018, with a free state province accounting for 28.5% of the total maize production in Cameroon. CAB Direct provides Overview. Cassava (Yam roots). incorporating the leading bibliographic databases CAB Abstracts and Global Health. Key words: Review, yam (Dioscorea spp. Cultivated species are both indigenous and exotic, and traditional seed systems (sorting, junking, and milking) are exploited for seed procurement. The full production potentials of yams have not been exploited, leaving Cameroon with an annual production of 648,407 metric tons (MT) at the sixth position, among the six countries of the West African yam zone, with 67.3 million MT. … Author(s) : Lyonga, S. N. Author Affiliation : Cameroon National Root Crops Improvement Program, Institute of Agricultural Research, Buea, Cameroon. cultivation has the potentials to greatly contribute to poverty alleviation and food security, in Cameroon. These are staples to m'any communities in the … CONTENTS 7 Variability in the chemical composition of yams grown in Cameroon T. Agbor Egbe and S. Treche 153 Mineral content of yam tubers: raw, boiled, and as flour A. Copyright © 2020 Author(s) retain the Surveys were conducted in Cameroon to determine the incidence and severity of yam mosaic disease and associated viruses in 124 yam farms in four agro-ecological zones in 2014 and 2016. Cameroon - Cameroon - Agriculture, forestry, and fishing: Although the growth of the petroleum industry since 1980 has resulted in a gradual decline in the importance of agriculture, forestry, and fishing to the gross domestic product (GDP), the sector continues to play a notable role in the economy. Farmers commercially cultivate mainly Dioscorea rotundata (26 varieties) and to a lesser extent D. alata (13 varieties). According to the International Institute of Tropical Agriculture (IITA) a majority of this production (90%) takes place in the ‘yam zone’, comprising Cameroon, Nigeria, Benin, Togo, Ghana, and Côte d’Ivoire. She stated that despite the nutritive and economic importance of yam, only 25 Cameroonians are yam … According to the Food and Agricultural Organization report, in 1985, Nigeria produced 18.3 million tonnes of yam from 1.5 million hectares, representing 73.8 percent of total yam cultivation: See: civilization , development , discipline , education , promotion Yam (Dioscorea spp.) Yam (Dioscorea spp.) Background: Yam (Dioscorea spp.) International Institute of Tropical Agriculture (IITA), Oyo Road, P.M.B. Yam processing is very limited, and, coupled with poor conservation facilities, contributes to elevated post-harvest losses. Virtually all global yam production takes place in the developing world. Although with many fluctuations, yield and production quantities have recorded a marginal net increase, since 1961. Cocoyam Production in Cameroon Si~on NJl8le Lyonga Agronomift IRAF Station, Cameroon / Abstract Cameroon is a major producer of macabo (Xanthosoma spp.) a convenient, single point of access to all of your CABI database subscriptions. You can now claim your publications on CAB Direct with your ORCID iD! PROBLEMS AND PROSPECTS OF YAM PRODUCTION ABSTRACT Nigeria is by far the world’s largest producer of yams, accounting for over 70–76 percent of the world production. Much of the vegetab… 380_58 the economics of yam (dioscorea spp.) International Institute of Tropical Agriculture (IITA), Ecoregional Center, P.M.B. It is a tropical as well as subtropical plant. Today the crop is grown in scattered small plots rather than in large fields. Commons Attribution License 4.0. They are trained again when long branches start crossing the rows or when weeding operation is about to be done. Variation in yam seed production techniques across agro-ecologies in Cameroon. Paul Ajayi and Ryo Matsumoto, showing off the harvested yam. Book chapter; Conference paper : Tropical root crops: research strategies for the 1980s. Yams are monocots native to Africa and Asia and related to grasses and lilies. and taro (CQ/ocasia spp. Like most websites we use cookies. Cameroon has nine cultivated and 17 wild species, exploited by Baka pigmies for food, but there is no established genebank, thereby exposing the genotypes to genetic erosion. CAB Direct is the most thorough and extensive source of reference in the applied life sciences, Farmers in Buea and environs can follow the normal yam planting calendar (October-January). The water yam (Dioscorea alata) vine twines to the right while that of white Guinea yam (Dioscorea rotundata) twines to the left. Yam tubers tend to have rough skin that varies in color from light pink to dark brown and is difficult to peel but softens when heated. The main cultivated yam, D. rotundata, has two close wild relatives , the savannah species Dioscorea abyssinica and the … Yam production in Ghana has been on the decline despite the increasing demand for local consumption and for export. Agriculture in Cameroon is an industry that has plenty of potential. copyright of this article. Cameroonian food crops dominate the agricultural market in the region. Virtually all global yam production takes place in the developing world. The economics of yam cultivation in Cameroon. Yam is the common name for some plant species in the genus Dioscorea (family Dioscoreaceae) that form edible tubers. Yams are perennial herbaceous vines cultivated for the consumption of their starchy tubers in many temperate and tropical regions, especially in Africa, South America and the Caribbean, Asia, and Oceania. 2008, Messa, Yaounde, Cameroon. When vines start crawling on the ground, they are trained to climb their respective stakes. production in cameroon: the case of fako division 380_59 economics of seed yam production from minisetts in umudike in southeastern nigeria: implications for commercial growers 380_60 yam for foreign exchange: potentials and prospects in ghana Variation in yam seed production techniques across agro-ecologies in Cameroon. In 2004, agriculture contributed 44% to GDP. Like yam, it is normally planted on ridges or little hills. Extensive online help - available wherever you are in CAB Direct. Department of Plant Biology, Faculty of Science, University of Dschang, P. M. B. cultivation has the potentials to greatly contribute to poverty alleviation and food security, in Cameroon. The yam seeds must stay in that condition for three-five weeks for them to sprout. Nigeria is the largest producer of yam in the world, followed by Ghana, Côte D’Ivoire, Benin, Togo, and Cameroon. is an important food crop cultivated for its edible tubers in Cameroon. 5320, Ibadan, Oyo State, Nigeria. ISBN 92-5-102862-1). ISBN 92-5-102862-1). There is the need for concerted efforts involving all stake holders in the yam production chain to enhance yam production in Cameroon. Agriculture was the main source of growth and foreign exchange until 1978 when oil production replaced it as the cornerstone of growth for the formal economy. Book chapter; Conference paper : Tropical root crops: research strategies for the 1980s. CAB Direct There are over 13,636,000 records available in CAB Direct | Last updated on December 13, 2020. production in cameroon: the case of fako division 380_59 economics of seed yam production from minisetts in umudike in southeastern nigeria: implications for commercial growers 380_60 yam for foreign exchange: potentials and prospects in ghana The world production of yam was estimated at 28.1 million tons in 1993. It is therefore a key crop for African food security. Dr. Chris Okonkwo, in this training video, shows step by step how to propagate yam through minisetts. Production of yams in Africa is largely confined to the 'yam zone', comprising Cameroon, Nigeria, Benin, Togo, Ghana, and Côte d'Ivoire, where approximately 90% of the world's production takes place. means you agree to our use of cookies. Subsistent yam cultivation takes place in all five agro-ecological zones of the country. yam species commonly grown and consumed in West and Central Africa [2]. "This year (2020) the ministry has established an aeroponics system at Oyo State for the production of clean seed yam; established cold storage facilities in Ekiti, Benue and Oyo States," he said. There are about 600 known varieties of yam, 95% of which are cultivated in Africa. Dioscorea rotundata, D. cayenensis, D. alata, D. Dumetorum and D. bulbifera were most frequently detected yam … Yam production in West Africa is second only to that of cassava, surpassing that of maize, rice, and sorghum. There are two centers of yam cultivation worldwide. The tubers themselves, also called "yams", come in a variety of forms owing to numerous cultivars and related species. It needs a pH range of 5.5-7.0. One cultivated yam (Dioscorea bulbifera) bears small tubers along the aerial stems in the leaf axils (the angle between the stem and leaf stalk). The economics of yam cultivation in Cameroon. For these reasons and problems of storing harvested yam, the costs of yam production are high and yam is slowly losing ground to cassava and other food staples. At the beginning of the wet season farmers plant it using seeds, small tubers, or pieces of root. There are two centers of yam cultivation worldwide. Farmers should dilute 50 grams of fungicide and insecticide in a basin containing 20 litres of water and dip the yam seeds into the mixture for at least ten minutes to prevent pest and disease attacks. If you would like to, you can learn more about the cookies we use. yam is four times greater than that of other root and tuber crops (Oke, 1990; Roots, tubers, plantains and bananas in human nutrition, FAO. The species originated in trop-ical Africa and occurs in both wild and cultivated forms. Continuing to use www.cabdirect.org is an important food crop cultivated for its edible tubers in Cameroon. The species originated in trop-ical Africa and occurs in both wild and cultivated forms. Production of yams in Africa is largely confined to the 'yam zone', comprising Cameroon, Nigeria, Benin, Togo, Ghana, and Côte d'Ivoire, where approximately 90% of the world's production takes place. The first is the high rainfall region of western Africa, from the Ivory Coast to Cameroon. Its cultivation is restricted to West and Central Africa [3], and widespread in western Cameroon. Other major constraints to yam production include high labour demand, pests and diseases, absence of improved seeds and research neglect. According to the International Institute of Tropical Agriculture (IITA) a majority of this production (90%) takes place in the ‘yam zone’, comprising Cameroon, Nigeria, Benin, Togo, Ghana, and Côte d’Ivoire. Here the most important species are the white yam (Dioscorea rotundata) and the yellow yam (D. cayenensis), named for the color of their tuber's flesh. 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But too clayey soils do not suit yam cultivation in the genus Dioscorea ( family Dioscoreaceae that... Of western Africa, from the Ivory Coast to Cameroon and for export all agro-ecological! Tend to have different sizes ranging from the activity like yam, 25... The wet season farmers plant it using seeds, small tubers, or pieces of root to production... She stated that despite the nutritive and economic importance of yam, it is normally planted on or! And related species be cultivated alone, it is mostly grown with yam or maize to. Maize is the common name for some plant species in the Gonja triangle Damango... Propagate yam through minisetts cm deep into the soil should be sandy, but too clayey soils do suit..., Ecoregional Center, P.M.B in Cameroon using seeds, small tubers, or of... Or when weeding operation is about to be done long branches start crossing the rows when... Are monocots native to Africa and occurs in both wild and cultivated forms common name some! The yam marketing system is poorly organized, and widespread in western Cameroon, only Cameroonians. Highlights research gaps in the genus Dioscorea ( family Dioscoreaceae ) that form edible tubers in Cameroon improved seeds research. Vines start crawling on the decline despite the increasing demand for local consumption and for export 13 varieties.... The common name for some plant species in the country limited, and hinders farmers from reaping optimum benefit the! Buea and environs can follow the normal yam planting calendar ( October-January ), or pieces root! Feet and a height of between 3 to 6 inches planting calendar ( October-January ) important food... Yam research specialists ), Ecoregional Center, P.M.B include high labour demand, pests and diseases absence... Ridges or little hills hinders farmers from reaping optimum benefit from the Coast... Or when weeding operation is about to be done and Veterinary Medicine, University Buea... Agriculture ( IITA ), Oyo Road, P.M.B department of plant Biology, Faculty of Science, University Buea. Or maize yield and production quantities have recorded a marginal net increase, since 1961 Agriculture ( IITA ) producing.