Physical and classification characteristics of soybean (Glycine max CV.) varieties

Abstract

In this study, physical and classification characteristics of 10 different soybean grains (Glycine max cv. A-3127, Ataem-7, Dery, Galina, Rubin, S-1, Umut-2002, Vojvodjanka, Yemsoy and Yeşilsoy) in storage moisture content were examined. These physical characteristics such as: average length, weight, thickness, geometric mean diameter, sphericity, surface area, volume, weight of thousand grains, bulk and true densities, porosity, terminal velocity, rupture force and coefficient of static friction. Results showed that ‘Umut-2002’ variety had highest length (8.07 mm), width (7.00 mm) and heavy (205.2 mg) than the other varieties, while ‘Yeşilsoy’ variety had the highest thickness (5.80 mm) and the roundest (91.4%). The grain variety with the highest bulk density was identified as ‘Dery’. True density and porosity values were observed to be the highest grain variety ‘Ataem-7’. ‘Dery’ variety which is the highest terminal velocity and rupture force value among other varieties. The ‘Rubin’ variety has been found to have the highest static coefficient of friction on all surfaces among all other varieties. Used dendrogram from single linkage nearest neighbour agglomerative cluster analysis which groups ten soybean varieties. Four different clusters of soybean varieties were obtained. The ‘Ataem-7’ variety can be regarded as a separate species from the others.