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