Autor: |
Chukwu, G.O, Nwosu, K.I, Mbanaso, E.N.A, Onwubiko, O, Okoye, B.C, Madu, T.U, Ogbonye, H, Nwoko, S.U |
Rok vydání: |
2009 |
Předmět: |
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Popis: |
Low multiplication ratio of cocoyam {Colocasia esculenta (taro) and Xanthosoma mafafa (tannia)} and scarcity of planting materials are major constraints militating against sustainable cocoyam production. During harvesting and processing of cocoyam, very small cormels weighing about 7.0 g (micro cormels) and less are discarded as wastes. These ‘wastes’ usually sprout in the wet season to constitute environmental problem. The Gocken Multiplication Technology is a new technology developed at the National Root Crops Research Institute (NRCRI), Umudike, Nigeria, for very rapid multiplication of cocoyam by recycling ‘wastes’ of cocoyam (≤7.0 g cormels) in cocoyam production. The technology utilizes a seed rate of about 0.35 - 0.45 t/ha compared to 1.0-2.0 t/ha currently in use. Total corm + cormel yield ranged from 7.34-15.5t/ha. Similarly, seed harvest multiplication ratio (SHMR) ranged from 19.0-39.0, while available yield ranged from 89.5-94.7 %. Economic analysis showed that the benefit cost ratio was 4.24:1.0, indicating that the technology is profitable by returning N4.24 to every N1.00 spent. |
Databáze: |
OpenAIRE |
Externí odkaz: |
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