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AUTHOR(S): Yabebal Chekole Mihret, Solomon Tekeste
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ABSTRACT Maize is one of the most widely produced and consumed cereal crops and knowledge of the engineering properties of these agricultural materials is an important tool for designing agricultural machines and equipment for planting, harvesting, processing, packaging, and storage. From these engineering properties, physical properties are the main ones and include size, geometric mean diameter, surface area, volume, 1000grain mass, bulk density, true density, porosity, sphericity, and angle of repose. And considering these physical properties mostly geometric mean diameter, sphericity, surface area and angle of repose are important during planter design, especially for hopper, seed metering cup, seed plate, and delivery tube design. So the moisture-dependent physical properties of two hybrid maize varieties BH540 and BH661 are determined. For BH540 maize, an increase of moisture content from 7.19% to 39.54% increases geometric mean diameter from 8.7140 to 9.4792mm, surface area from 240.95 to 285.04mm2, sphericity from 0.8629 to 0.8639, porosity from 5.06 to 14.82%. For the BH661 maize variety, as moisture content increase from 8.83% to 35.40% geometric mean diameter increases from 7.504 to 8.1749mm, surface area from 177.77 to 210.94mm2, sphericity from 0.0.6417 to 0.6488, porosity from 5.08% to 20.93%. At a moisture content of 10.31% and 11.3% the seed has a minimum angle of repose 22.20 and 29.30 for BH540 and BH661 maize varieties respectively. |
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KEYWORDS Maize, Physical properties, Moisture, BH540, BH661 |
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Cite this paper Yabebal Chekole Mihret, Solomon Tekeste. (2023) Moisture-Dependent Physical Properties of Ethiopian BH540 and BH661 Maize Variety Concerning with Planter Design. International Journal of Agricultural Science, 8, 299-305 |
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