A Study on Physical Properties of Okra Seed: Abelmoschus esculentus (L.)

Physical properties of any seed are vital information for the development of its metering mechanism, processing, and storage system. An experiment was conducted to evaluate physical properties of okra seed of variety 'Varsha Uphar'. The study revealed that the average value of length, width, thickness and geometrical diameter of okra seed were 5.73 mm, 4.83 mm, 4.49 mm and 4.98 mm, respectively. The bulk density and true density okra seeds were found to be 0.54 g cm-3 and 1.07 g cm-3, respectively. The average volume of one okra seed was 108 mm-3. The average angle of repose of okra seeds was 28.65°, which ranged from 27° to 30°. The study also inferred that the roundness of the seed was 78.2% ranging from 68.4% to 89.5% whereas the sphericity of the seed was 87.9% ranging from 82.4% to 95.8%. The porosity of bulk of okra seeds was 49.1%, which varied between 43.9% and 55.0%. The average weight of 1000 okra seeds varied between 53.2 g and 57 g with an average value of 55.16 g.