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American Journal of Food Technology
Year: 2008  |  Volume: 3  |  Issue: 3  |  Page No.: 214 - 219

Genotype-Environment Interaction (GXE) Effects on Some Major Rheological Properties of Cassava (Manihot esculenta, Crantz)

E. Baafi and O. Safo- Kantanka    

Abstract: Trials were conducted at two different locations in the Forest and Transition ecozones of Ghana to determine the presence and relative importance of GXE interactions on rheological properties of cassava using 8 genotypes. Data collected include solubility, swelling power, water-binding capacity (flour and starch) and swelling capacity and pH for the gari. The data were subjected to the Analysis of Variance (ANOVA) in a Factorial Randomised Complete Block Design (RCBD). Genotypic differences (p<0.05) were observed for all the traits studied except water-binding capacity and swelling power of starch. GXE interaction was significant (p<0.05) for all traits studied. These differential genotypic responses across locations means that the relative performance of varieties will differ across environments and this can complicate evaluation and selection of genotypes for specific domestic and industrial uses. Thus, indicating the importance of GXE interactions on cassava improvement and industry in Ghana.

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