If you would like to, you can learn more about the cookies we use. means you agree to our use of cookies. Yam (Dioscorea spp.) … Cassava (Yam roots). These are staples to m'any communities in the … 5320, Ibadan, Oyo State, Nigeria. 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. The first is the high rainfall region of western Africa, from the Ivory Coast to Cameroon. Minisett technology is also gaining grounds. Farmers in Buea and environs can follow the normal yam planting calendar (October-January). The yam seeds must stay in that condition for three-five weeks for them to sprout. Growing Slips For Planting Start growing the sprouts. Yam (Dioscorea spp.) Overview. is an important food crop cultivated for its edible tubers in Cameroon. "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. They are trained again when long branches start crossing the rows or when weeding operation is about to be done. 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 convenient, single point of access to all of your CABI database subscriptions. is a very important common food crop in West Africa. Subsistent yam cultivation takes place in all five agro-ecological zones of the country. 380_58 the economics of yam (dioscorea spp.) Cameroonian food crops dominate the agricultural market in the region. At the beginning of the wet season farmers plant it using seeds, small tubers, or pieces of root. 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 There is the need for concerted efforts involving all stake holders in the yam production chain to enhance yam production in Cameroon. She stated that despite the nutritive and economic importance of yam, only 25 Cameroonians are yam research specialists. Yam cultivation in the Gonja triangle, Damango district, Ghana. 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. ISBN 92-5-102862-1). The soil should be sandy, but too clayey soils do not suit Yam cultivation. Nigeria is the largest producer of yam in the world, followed by Ghana, Côte D’Ivoire, Benin, Togo, and Cameroon. Its cultivation is restricted to West and Central Africa [3], and widespread in western Cameroon. Department of Plant Biology, Faculty of Science, University of Dschang, P. M. B. Dr. Chris Okonkwo, in this training video, shows step by step how to propagate yam through minisetts. 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 … ), production, Cameroon. Yam production in Ghana has been on the decline despite the increasing demand for local consumption and for export. 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. There are two centers of yam cultivation worldwide. Book chapter; Conference paper : Tropical root crops: research strategies for the 1980s. The world production of yam was estimated at 28.1 million tons in 1993. International Institute of Tropical Agriculture (IITA), Ecoregional Center, P.M.B. Virtually all global yam production takes place in the developing world. Other major constraints to yam production include high labour demand, pests and diseases, absence of improved seeds and research neglect. There are two centers of yam cultivation worldwide. 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. 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. Maize is the most important food crop, followed by wheat and barley. The species originated in trop-ical Africa and occurs in both wild and cultivated forms. The species originated in trop-ical Africa and occurs in both wild and cultivated forms. There are over 13,636,000 records available in CAB Direct | Last updated on December 13, 2020. 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. Yam production in West Africa is second only to that of cassava, surpassing that of maize, rice, and sorghum. The tubers can potentially grow to a length of 4.9 feet and a height of between 3 to 6 inches. She stated that despite the nutritive and economic importance of yam, only 25 Cameroonians are yam … yam species commonly grown and consumed in West and Central Africa [2]. 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.) Virtually all global yam production takes place in the developing world. 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. Yam is the common name for some plant species in the genus Dioscorea (family Dioscoreaceae) that form edible tubers. Today the crop is grown in scattered small plots rather than in large fields. 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. 67, Dschang, Cameroon. In 2004, agriculture contributed 44% to GDP. It is a tropical as well as subtropical plant. Cultivated species are both indigenous and exotic, and traditional seed systems (sorting, junking, and milking) are exploited for seed procurement. yam is four times greater than that of other root and tuber crops (Oke, 1990; Roots, tubers, plantains and bananas in human nutrition, FAO. Commons Attribution License 4.0. When vines start crawling on the ground, they are trained to climb their respective stakes. and taro (CQ/ocasia spp. Extensive online help - available wherever you are in CAB Direct. There are about 600 known varieties of yam, 95% of which are cultivated in Africa. African market. 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. Like most websites we use cookies. Author(s) : Lyonga, S. N. Author Affiliation : Cameroon National Root Crops Improvement Program, Institute of Agricultural Research, Buea, Cameroon. session so others can sign in. You can now claim your publications on CAB Direct with your ORCID iD! During the vegetative phase it needs distributive rainfall, humid and warm weather, during the corm development … This article is published under the terms of the Creative The tubers are put 5 cm deep into the soil. 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 Yams aren't grown from seeds like most other … 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). Yam processing is very limited, and, coupled with poor conservation facilities, contributes to elevated post-harvest losses. cultivation has the potentials to greatly contribute to poverty alleviation and food security, in Cameroon. cultivation has the potentials to greatly contribute to poverty alleviation and food security, in Cameroon. 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. 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. Paul Ajayi and Ryo Matsumoto, showing off the harvested yam. Afterwards, they are removed to a bed of 1metre wide and 20 cm high. is an important food crop cultivated for its edible tubers in Cameroon. CAB Direct is the most thorough and extensive source of reference in the applied life sciences, 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. Key words: Review, yam (Dioscorea spp. copyright of this article. 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. Farmers commercially cultivate mainly Dioscorea rotundata (26 varieties) and to a lesser extent D. alata (13 varieties). This review highlights research gaps in the yam production chain, which can be exploited to enhance production in the country. Yam (Dioscorea spp.) 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. One cultivated yam (Dioscorea bulbifera) bears small tubers along the aerial stems in the leaf axils (the angle between the stem and leaf stalk). Although with many fluctuations, yield and production quantities have recorded a marginal net increase, since 1961. Variation in yam seed production techniques across agro-ecologies in 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. Cocoyam Production in Cameroon Si~on NJl8le Lyonga Agronomift IRAF Station, Cameroon / Abstract Cameroon is a major producer of macabo (Xanthosoma spp.) Yam (Dioscorea spp.) It is therefore a key crop for African food security. The first is the high rainfall region of western Africa, from the Ivory Coast to Cameroon. 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. Variation in yam seed production techniques across agro-ecologies in Cameroon. yam species commonly grown and consumed in West and Central Africa [2]. … cultivation: See: civilization , development , discipline , education , promotion Continuing to use www.cabdirect.org ISBN 92-5-102862-1). 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. Yam (Dioscorea spp.) Faculty of Agriculture and Veterinary Medicine, University of Buea, PMB 63, Buea, Cameroon. The water yam (Dioscorea alata) vine twines to the right while that of white Guinea yam (Dioscorea rotundata) twines to the left. 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 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 Although it can be cultivated alone, it is mostly grown with yam or maize. 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. Its cultivation is restricted to West and Central Africa [3], and widespread in western Cameroon. Agriculture in Cameroon is an industry that has plenty of potential. CAB Direct provides 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. Like yam, it is normally planted on ridges or little hills. 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. Much of the vegetab… Background: Yam (Dioscorea spp.) It needs a pH range of 5.5-7.0. The tubers themselves, also called "yams", come in a variety of forms owing to numerous cultivars and related species. Yam tubers tend to have different sizes ranging from the size of a small potato to more than 130 pounds. The economics of yam cultivation in Cameroon. 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. 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. Dioscorea rotundata, D. cayenensis, D. alata, D. Dumetorum and D. bulbifera were most frequently detected yam … ), producing about one million tons,in 1978. 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. This is to ensure that we give you the best experience possible. The yam marketing system is poorly organized, and hinders farmers from reaping optimum benefit from the activity. Author(s) : Lyonga, S. N. Author Affiliation : Cameroon National Root Crops Improvement Program, Institute of Agricultural Research, Buea, Cameroon. A survey was carried out in three ecological zones to find out the constraints and prospects to yam production. ... 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. 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. 2008, Messa, Yaounde, Cameroon. 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 economics of yam cultivation in Cameroon. International Institute of Tropical Agriculture (IITA), Oyo Road, P.M.B. 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 CAB Direct Copyright © 2020 Author(s) retain the The main cultivated yam, D. rotundata, has two close wild relatives , the savannah species Dioscorea abyssinica and the … cultivation has the potentials to greatly contribute to poverty alleviation and food security, in Cameroon. incorporating the leading bibliographic databases CAB Abstracts and Global Health. 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Across agro-ecologies in Cameroon, or pieces of root the yam cultivation in cameroon of the wet season farmers plant it using,... To climb their respective stakes farmers from reaping optimum benefit from the Ivory Coast to Cameroon edible...