FACULTY OF AGRICULTURE

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Subject: search.filters.subject.Adaptation

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    Farmers adaptation strategies to the effect of climate variation on yam production: a case study in Ekiti State, Nigeria
    (2013) Oluwasusi, J. O.; Tijani, S. A.
    The study investigated farmers adaptation strategies to the effect of climate variation on yam production in Ekiti State with the specific objectives of assessing the socio-economic characteristics of farmers, farmers' climate related constraints, the adaptation strategies employed by farmers, and yam farmers' level of production across the years 2008, 2009 and 2010. A three - stage multistage sampling technique was used to select one hundred and fifty-one respondents from the list of contact farmers obtained from the state Agricultural Development Programme (ADP). Data collected through questionnaire were analysed using frequency counts, percentages, Chi-square, Pearson Product Moment Correlation and ANOVA. Results obtained showed that farmers in the study area were mostly males with a mean age of 53.9 years. Chi- square analysis revealed that there was a significant relationship between secondary occupation (X2= 14.068), farm size (x2= 99.597) and the level of production of yam farmers. Pearson product moment correlation indicated that there were significant and positive relationships between age (r = 0.160), adaptation strategies (r- 0.158) and level of production, while negative relationship was found between constraints (r = -0.173) and the level of yam production. ANOVA showed a significant difference in the level of production of farmers across the years; 2008, 2009 and 2010 (F- 212.7). Therefore, efforts should be geared towards developing and making available, yam setts that are tolerant to change in climate elements and weather extremes like flood and drought. This study also suggests the need for prompt weather information, increased research and development of innovation for sustainable yam cropping in the face of climate variation.
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    Evaluation of photoperiod sensitivity and adaptation in Kenaf (Hibiscus cannabinus) in some Nigerian agro-ecologies
    (Elsevier, 2012) Balogun, M. O.; Akande, S. R.; Raji, J. A.; Ogunbodede, B. A.
    Seven genotypes of Kenaf were grown in pots at controlled and natural photoperiod (PP) regimes in Ibadan, South-western Nigeria, to determine their PP sensitivities. Numbers of days to flowering and fibre yield were recorded. The same genotypes were grown on the field at Jos, Ibadan and Badeggi of high altitude, southern guinea savannah and forest agro-ecologies of Nigeria, respectively. Days to flowering, fibre and seed yields were recorded. Potted plants grown at natural PP flowered earliest, 54 days after planting (DAP) while they flowered at 118 DAP at 12 hours PP. IFEKEN DI400flowered 20 days later than other genotypes at both PP regimes, and was grouped as being relatively photo- insensitive. Fibre yield was significantly higher at natural than at 12 hours PP only in IFEKEN DI400, with highest mean yield of24.08g / plant. In the genotype x environment studies, IFEKEN DI400 was consistently latest to flower across locations with an average of 107 days. Mean fibre yield of 11,314.5kg/ha in Ibadan tripled that obtained in Badeggi and Jos. Genotype Tainung had the highest seed yield of 473.75g and 179.35g at Badeggi and Ibadan, respectively while the lowest seed yield 201.08g for Jos was recorded in genotype 8B. Badeggi is recommended for seed production while Ibadan is recommended for fibre production pending the availability of specifically adapted genotypes. The genotypes IFEKEN DI400, Tainung and 8B are candidate genotypes in breeding for high yield and adaptation to Nigerian agro-ecologies.