MULTIVARIATE STATISTICAL-ANALYSIS OF WATER SORPTION DATA OF ARGENTINESORGHUM

Instead of using a factorial design for studying water sorption charac teristics and its assumption of homogeneity of variances among cells, a multivariate statistical analysis approach is presented. This consid ers interactions and heterogeneous variances and leads to simultaneous comparisons of all a(w) levels.By applying this approach to a study o f the water sorption characteristics of Argentine sorghum, significant differences were obtained between hybrids with the conclusion that th ey should not be mixed in storage. Confidence intervals were presented which will be of use both in predicting storage behavior and in compa ring results from different researchers.