1. DETERMINATION OF SOME PHYSICAL PROPERTIES OF RICE SEEDS GENERALLY GROWN IN CHHATTISGARH by LIKESHWAR SAHU, MANISHA SAHU, AJAY VERMA AND MD. QUASIM
Basic physical properties of agricultural materials play important role for optimizing the design of equipment and facilities for the harvesting, handling, conveying, separation, drying, storing, and processing. In this study, some physical properties of thirteen varieties of paddy were investigated. The physical properties Length (L), Width (W), Thickness (T), and Mass (M) were function of moisture content and measured at a moisture content of 13.34 ± 0.51% (dry basis) and the following results were obtained: the average split length, width, thickness and unit mass of 1000seeds are 8.74 mm, 2.46 mm, 1.85 mm and 22.97 g respectively. Comparatively highest length was obtained for the variety of Chandrahashini among the thirteen varieties of paddy. Width, thickness, geometric mean diameter and surface area were observed highest for the variety of IGKV R1 among the thirteen varieties of paddy. Javaful resulted highest sphericity, aspect ratio, true density and porosity among the thirteen different varieties of paddy. Weight of 1000 seeds and bulk density were highest for the variety of Mahamaya among the thirteen varieties of paddy.
KEY WORD: Bulk density; Paddy (Oryza sativa L.); Physical properties; Porosity; Sphericity.