Abstract—Harumanis is a very popular green eating mango variety which has been planted commercially in the State of Perlis, Malaysia. However, several variations such as fruit shape and tree architecture which are apparent on field have caused confusing to the farmers as well as consumers of the ‘genuine’ Harumanis. This study was designed to observe the variation among Harumanis population at several locations in Malaysia. Samples were classified into two treatments based on their tree architecture: droop Harumanis and erect Harumanis. The samples were collected from six farmers’ plot in Perlis, Kedah and Johor. Samples were subjected to fruit quality and branch strength analysis. Fruit quality characterisations and branch strength analysis revealed significant variation among treatments. Fruits harvested from droop Harumanis tree was bigger than erect Harumanis. Droop Harumanis fruit samples recorded higher value for relative water content, moisture content and modulus of elasticity while erect Harumanis recorded higher value for fresh-weight basis density and modulus of rupture. This study indicated that morphological characterisations play an important role in determining phenotypic variation in inter-variety population including Harumanis.
Keywords—branch strength analysis, fruit quality analysis, Harumanis, Mangifera indica L., modulus of rupture.
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