![]() The results showed that the model work was valid for predicting the responses being affected by the indicators, and optimizing the physical properties of paddy. The results further revealed that the effect of temperature and time on paddy decreased with process except porosity and hardness, which increased as affected by these conditions. Predicted optimum temperature and time were 63 ✬ and 142.5 min respectively and predicted length, width, thickness, TKW, bulk density, true density, porosity and hardness under these conditions were 6.72mm, 3.32mm, 2.27mm, 27.38 g, 716.78 kg m-3, 1459.14 kg m-3, 51.24% and 45.26 N respectively. R2 values, non-significance of lack of fit which compares residual to pure error and significance of analysis of variance which is essential for testing the applicability of the model. The suitability of quadratic model for present study was described by the responses having acceptable R2 and Adj. A mathematical model was used predicting the effects of indicators i.e. Present study was conducted to assess the effect of drying on physical properties of Nanjing 9108 paddy variety using response surface methodology. Determined properties of fluffy as well as true seeds of Deenanath would be utilized to develop threshing, cleaning, grading, seed storage and packaging operations and machineries. The mean values of length, width, thickness, arithmetic mean diameter, geometric mean diameter, sphericity, surface area, volume, thousands seed mass and bulk density of fluffy Deenanath grass seed were observed in the range of 5.23-7.17 mm, 2.10-3.44 mm, 1.17-2.49 mm, 3.07- 4.13 mm, 2.53- 3.69 mm, 41.01-60.13 %, 19.12-43.70 mm2, 3.70-18.24 mm3, 0.789-0.849 g and 7.41-7.89 kg/m3 respectively. ![]() Therefore engineering properties of fluffy as well as true seeds were determined in view of its important in development of post-harvest mechanization. Engineering properties of grass seeds are most important for the development of post-harvest mechanization and operations. ![]()
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