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Home  >  Volume 46 (May, 2018)

29. MODELING RELATIONSHIP BETWEEN SOIL PROPERTIES AND YIELD COMPONENT OF PLANTAIN USING MULTIPLE REGRESSION AND STRUCTURAL EQUATION MODELING. by T. A. Ojurongbe, K. A. Bashiru1and S.O.S Akinyemi Volume 46 (May, 2018 Issue), pp227 –232
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MODELING RELATIONSHIP BETWEEN SOIL PROPERTIES AND YIELD COMPONENT OF PLANTAIN USING MULTIPLE REGRESSION AND STRUCTURAL EQUATION MODELING.

T. A. Ojurongbe, K. A. Bashiru1and S.O.S Akinyemi

1Department of Mathematical Sciences College of Science, Osun State University, P.M.B 4494, Osogbo, Nigeria.

2 Fruits and Biotechnology Research Unit, National Horticultural Research Institute, P.M.B 5432, Idi-Ishin Jericho, Ibadan. 

Abstract

Regression analysis is a useful multivariate technique for investigating and modelling the relationship between variables.Structural Equation Modelling (SEM) is a combination of factor analysis and multiple regression. Since soil properties influence the behavior of soils, the knowledge related to these properties is important in using them for different purposes. The aim of this work is to obtain an expression using multiple linear regression to evaluate relationship between the dependent variables(yield and Nitrogen), and the soil physical and chemical properties (pH, Orgcarbon, P, Ca, Mg, Mn, K, CEC, Sand, Silt, clay). SPSS 21.0 was used to carry out the analyses on multiple regression. Secondly, to develop a structural equation model of yield component on plantain (YCP) in some areas in Osun state and Oyo State, using soil chemical and physical properties, and path analysis was performed using LISREL 9.1. The main purposeof this study is to develop a conceptual model in order to determine the sources of variation within the dataset and to explore equations for the sampled soil. The result revealed thatsoil physical and chemical properties works were important in explaining YCP.

Considering the relative importance of the estimation of YCP and from the view of regression equation, magnesium and Cation exchange capacity (CEC) made the biggest contribution through the proposed models for the soil yield. According to the structural equation modeling (SEM) outcome, the final model proved that YCP was controlled by soil chemical properties more than the physical properties.

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