Line diagram of air screen cleaner cum grader (Source: Sinha, J.P. and A.P. Srivastava (2003)

Line diagram of air screen cleaner cum grader (Source: Sinha, J.P. and A.P. Srivastava (2003)

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Pre-harvest and post-harvest operations are integral parts of the quality seed production system. If due attention is not paid during the first phase, probably therewill not be any means left to obtain quality seed. Similarly, good quality seed produced with utmost care may lose much of its value if proper management is not followed during the post...

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... mechanism of the machine to harness maximum efficacy. There are three types of screen cleaning used in air screen machines, namely, (a) knockers or beater, (b) rubber balls and (c) brushes. Amongst all, the rubber ball system is the best as it induces least tear and wear to screen as well as minimizes the chance of mechanical mixing of seed (Fig. ...