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Genotype by environment interaction analysis of grain yield and yield components in provitamin A maize
Selecting superior genotypes for varietal release and commercial use is a key breeding objective. The use of appropriate statistical methods to analyze the complex genotype by environment interaction (GEI) phenomena may increase the efficiency in selecting superior genotypes. -
Estimating the Economic Returns to Schooling: Restricted Maximum Likelihood Approach
The economic returns to schooling is a fundamental parameter of interest in many different areas of economics and public policy. -
Estimating the Economic Returns to Schooling: Restricted Maximum Likelihood Approach
The economic returns to schooling is a fundamental parameter of interest in many different areas of economics and public policy. The most common technique for estimating this parameter is based on the assumption that the ‘true’ coefficient of education in the earnings equation is constant across individuals. However, this may not often be wholly true and returns to schooling estimates may be biased and inconsistent. -
Yield performance of cassava genotypes in the forest and coastal ecologies of Southern Ghana
Root yield performances of 10 cassava genotypes were assessed across six environments to determine stable cassava (Manihot esculenta) cultivar(s) for root yield in southern Ghana. -
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The Influence of Observed Clay Content on Shear Strength and Compressibility of Residual Sandy Soils
Akayuli, C., Ofosu, B., Nyako, S. O., & Opuni, K. O. (2013). The influence of observed clay content on shear strength and compressibility of residual sandy soils.International Journal ofEngineering Research and Applications Vol. 3, Issue 4(3)pp.2538-2542 -
Population Density and Diversity of Trees on Farmlands in Three Districts of the Upper East Region of Ghana: Implications for Food Security and Ecosystem Sustainability
Akpalu, S. E.; Adeyiga, G. K.; Amoah, M. K.; Kyereh, D.; Akpalu, M. M. -
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Gender Analysis of Sweet Potato Production in Ghana
Gender issues have become key in agricultural research and activities mostly focusing on the differences between sexes in production. The Ghanaian traditional setting perceives farming as a man’s world due to its tedious and laborious nature. Gender distribution along the sweet potato value chain is vital in modern research as it affects adoption of technologies and output. This study cuts across various stages in sweet potato production with emphasis on gender analysis at various levels in production in 4 districts (Bawku municipal, Kwahu East, Twifo Ati Mokwa and Akatsi South) with total sample size of 120 farmers obtained through multi-stage sampling.