Effects of moisture content on some physical attributes of the seeds of three accessions of winged bean (Psophocarpus tetragonolobus L.)
by Kazeem Olaniyi Oriola; Jelili Babatunde Hussein; Moruf Olanrewaju Oke; Rukayat Dupeola Isiaka
International Journal of Postharvest Technology and Innovation (IJPTI), Vol. 8, No. 2/3, 2022

Abstract: Some physical properties of winged bean seed, Entry II TPT 30, Entry 4 TPT 6, and Entry 12 TPT 32 accessions, were investigated at five different moisture contents (5% to 25% wet basis) using standard methods. Among the accessions, Entry 12 TPT 32 had the highest values of length (8.43 mm-9.64 mm), width (8.27 mm-8.71 mm), thickness (7.16 mm-7.51 mm), arithmetic-mean diameter (7.95 mm-8.62 mm), geometric-mean diameter (7.38 mm-8.57 mm), sphericity (0.88-0.89), surface area (179.35 mm²-211.92 mm²), and volume (230.70 mm³-286.44 mm³). The Entry 4 TPT 6 had the highest thousand-mass (0.28 kg-0.48 kg) and porosity (25.20%-45.27%), while Entry II TPT 30 had the highest percentage bulk density (1.02 kg/mm³-0.60 kg/mm³) decrease. A nonlinear decrease was obtained for the true density of Entry II TPT 30, whereas a nonlinear increase was obtained for the Entry 4 TPT 6 and Entry 12 TPT 32 accessions. Regression equations that established adequate relationships between physical properties and seed moisture were obtained.

Online publication date: Thu, 07-Apr-2022

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