Determination of Optimum Seed Detaching Force for the Development of Prototype Threshing Unit for Cumin Seed
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Cumin is extensively cultivated in the arid and semi arid regions of India. Mechanical properties of cumin play an important role in designing and developing of the threshing and other processing machineries for cumin. Cumin, being a delicate seed crop with hard and thorny stems gets damaged easily, posing problem during processing in conventional threshers. AVANI-111 is a cumin variety sown in Rabi season and extensively grown in the state of Rajasthan. The research findings i.e. detaching force required for the development of prototype threshing unit for cumin crop is described in this paper. The test was conducted at 9.01 percent (db) seed moisture level and the result shows no significant effect of seed dimension on seed detaching force. The mean force required for seed detaching was measured to be 0.408+ 0.146 N. The results obtained can be effectively utilized for optimal use of the material of construction and power source for prototype development.
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