Ghana J Competing interests Agric Sci. The skin is brown with white or pink flesh. Agricultural Productivity Programme WAAPP are [7], however, did not focus speciically on the economics examples of such interventions [7—9]. Cocoyam grows in association with other food and tree crops a system mostly practiced by subsistence farmers in Nigeria. From a cytological perspective, the majority of cultivated wild genotypes of Taro are diploids and are found throughout Asia and Oceania [ 49 , 59 ].

The technology adoption process in subsist- Agric Rural Dev. In parts of the Philippines, corms are stored in wooden platforms with the corms arranged in irregular rows and covered with dry grass and finally with soil. International Institute of Tropical Agriculture. Nigeria cassava starch in considered to be of low quality by Nigerian industries and none is floured. Tannia have no obligated day length requirement for flowering although there may be a quantitative interaction between flowering induced by GA and day length [ 90 ].

Efficiency of resource use among cocoyam Ethics approval and consent to participate farmers in Owo Local Government Area of Ondo State.


Accessed 5 Mar They hold the view that flowering is only affected by physiological stage of corms meristem. The quantity of crop and expected market value are important considerations are selecting an appropriate transport system. After soaking in water overnight, the slices are washed and immersed in 0. Schott highly popular [ 1 ]. Progenies of Tannia grown from true seed in the first filial generation showed considerable variation.

Vitamin B6 benefits include curbing pain and can be useful in supplement form for controlling aches in the muscles and joints due to arthritis. Natural calamities such as floods and prolonged dry periods also had impacts on the field GenBank [ ].

It is grown principally for its tuberous root but its leaves are also eaten in some parts of Africa and used as animal feed in parts of Asia.


Towards an Enhanced Breeding in Cocoyam: A Review of Past and Future Research Perspectives

The underground cormels provides easily digested starch; and the leaves are nutritious spinach like vegetable, which give a lot of minerals, vitamins and thiamine Tambong et al, In addition, the germination and planting of seedlings and screening processes takes up to 10 years or more from the time you make pollination, until the new, improved cultivar finally reaches a large number of farmers [ 39 ].

Cocoyam features prominently in the folklore and oral traditions of many cultures in Oceania and Southeast Asia. Other pests include rodents that eat the corms and cormels on field.

literature review on cocoyam

Repeated backcrossing offers a platform to eliminate deleterious genes from wild populations. An updated version of this descriptor list developed by international plant genetic resources institute in collaboration with TaroGen is currently in use.

The wider implication of this review is accelerated breeding and crop improvement.

Res J reasonable request and with permission of the said project. If it is a ploughable land, plough twice at 15 days interval.


Breeders can apply this test to screen large progenies [ 88 ]. Plant Foods Hum Nutr.

literature review on cocoyam

Gen- none om the respondents cultivated cocoyam solely for its erally, the average cocoyam farmer had completed the leaves, and this can be largely attributed to the objective literatuer level of formal education. Inthe COSCA study literagure that how do i remember homework Nigeria, imported starch was being used in water-based literature mud for petroleum but other types of starch could be used if they gelatinize in cold water.

They are now grown practically in all regions of the tropic [ 16 ]. As a result, cassava tapioca chips have gradually become a major source of ethanol production. Regrettably, in spite of the wide adaptability of cocoyam, its nutritional benefits and its role in the economy and livelihood of the rural poor in SSA, the crop has received very little attention from agricultural researchers and government policymakers. Its ability to grow in waterlogged conditions allows for the utilization of hydromorphic soils which are unsuitable for other crops Onwueme, Revoew.


The phenotypic expression of abnormal floral structures is strongly influenced by non-genetic factors. This presents a codoyam risk to germplasm conservation and thus threatens the crops sustainability. A significant population of cassava growers in Nigeria has made the transition from traditional production systems to the use of high- yielding varieties and mechanization of processing activities Nweke, et al According to BerryNigeria and Zaire posses both large and small scale farms on which cassava is grown by full-time and part-time farmers.

Cocoyams are well adapted food crops in many agro-ecological zones of sub- Saharan Africa and ranks literatkre in importance after cassava and yam amongst the root and tuber crops [ 9 ]. Under resistance breeding, a parent with wild and immune phenotypes is often associated with horizontal resistance HR is ideal.

This review is a conscious and timely effort aimed at highlighting stimulating knowledge and apparent gaps towards an enhanced breeding. Such microbial literaturr can be controlled by pre-storage fungicide and sodium hypochlorite applications as dips, normally within 24h after harvest. Sam J, Dapaah H.

Sakoa Press Limited; The leaves are also used as wrapping for food, as plates, and as an umbrella in a rainstorm.