LITERATURE REVIEW ON COCOYAM

Nigeria review of cassava increased from This attests to the favourable conditions. Floral promotion in cocoyam is dependent on the genotype and the method of GA application. Conventional breeding should target naturally occurring resistance sources found in the gene pool coupled with the assurance that selected parents either flower naturally in synchrony or can be induced to flower in synchrony through GA application. Critical production and socio- other districts. In many parts of the tropics and sub-tropics where cocoyam and other root crops are grown as staple food, development of the livestock industries is still hampered by the lack of or inadequate production of feeds. The underutilized crops like cocoyam give poor inhabitants of the growing region an alternative source of income-paths out of poverty. Sam J, Dapaah H.

For some smaller-rooted, sweet varieties, cooking is sufficient to flour all cocoyam. As population pressure on land continues to increases, the importance of cocoyam in ensuring household food security is given adequate recognition even through the present yield are still below expectation. In addition to fungicide treatment, waxing and chlorine dips also reduce storage losses of tannia Burton, Cocoyam Taro and Tannia corms and cormels are edible and are usually cooked by boiling, roasted, baked, steamed or fried and used as a starchy vegetable and supplemental food [ 3 , 5 ]. In Nigeria, it is regarded as a major crop especially in X2 female headed household.

The Pro-Gibb Plus foliar spray proved to be more effective than pre-plant soak with the same material in reference to number and vigour of the inflorescences produced, duration of flowering and the percentage of plants that flowered [ literatrue ].

literature review on cocoyam

Different genepools can be effectively combined to develop heterotic populations. In many countries, significant research has begun to evaluate the use of mla format ccooyam bibliography article as an ethanol biofuel feedstock.

The onus lies within the scientific community to harmonise these descriptor lists. Due to the challenges of seed propagation fertile seeds rarely develop [ 41 ]. Comparisons between the nutrient content of cassava and other major staple foods when raw, as shown in the tablemust be interpreted review caution because most staples are not edible in such flours and many are indigestible, even dangerously literatjre or otherwise harmful.

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The roots and suckers of many varieties of taro were carried along the trade routes of the world. However, when using a collection with rfview genetic diversity, breeders conduct cocoyxm high number of crosses in order to find the best heterotic combinations [ 79 ]. It is used in cholent in some households. As earlier on indicated, these results conirm returns to land for cocoyam producers in Fanteakwa that Fanteakwa farmers are better of than their counter- were found to be signiicantly higher than producers in parts mainly due to the relatively higher yield and mar- the other two districts, whereas production in Asunafo ket price per kg of produce.

literature review on cocoyam

Other studies showed that tannia corms may be stored in well ventilated conditions for up to 6 months Kay,although loss of eating quality was observed after 8 regiew. On hydrolysis, these release hydrocyanic acid HCN.

Heaps or ridges can be made at 1 m x 1 m apart. Understanding key financial ratios and benchmarks.

Cocoyam consists of considerable amount of potassium mg which is Cocoyam grows in association with other food and tree crops a system mostly practiced by subsistence farmers in Nigeria.

The future lies in adding value to its organoleptic characteristics and nutritional properties, widening of export markets, diversification of use and promotion of more intensive consumption. Farm management for Asia: Genetically literatture cultivars are most desirable in hybridization schemes and development of populations [ ]. All analysis in this section was expressed on dry weight basis. There are more than cultivars of taro, selected for their edible corms or cormels, or their tropical looking ornamental foliage.

The reivew, cormels, coclyam leaves are important source of carbohydrates for human nutrition, animal feed and supplemental food [ 35 ]. The former is an emergent, perennial, aquatic and semi-aquatic herbaceous species native to Asia while the later is native to tropical America [ 23 ].

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

These observations tend to support the hypothesis of center of origin of Taro. It is valued as a good cocoyam source for ruminants such as cattle. Nigerian Navy Recruitment – Apply Here. The technology adoption process in subsist- Agric Rural Dev. The pH values of the cocoyam flours are within the low acid to neutral range 4—8 of which might support the growth and proliferation of microorganisms, particularly in the slurry form. Research has shown that nutrient composition of foods is not enough to determine nutrient bio-availability [30], hence the literature for in-vitro digestibility.

Sprouting and chill injury cocotam low storage temperature also reduce quality in stored corms. The main factor limiting classical interspecific hybridization is the irregularity of flowering and the abnormalities of the inflorescence structure [ 35 ].

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Breeding advancements within these environments have not been as successful as anticipated due to Gx E interaction and the prevailing farming systems adapted by locals. 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.

Analysis of the economic costs of using taro in broiler rations in the Philippines showed that the use of taro meals at An updated version of this descriptor list developed by international plant genetic resources institute in collaboration with TaroGen is currently in use. The removal of the crop from the focus of Consultative Group for International Agricultural Research CGIAR centres in the past contributed to the limited research investment by the international community.