Abstract
Studies were made to find out the influence of physical grading of seeds through size (sieve) and specific gravity (using water) individually and in combinations on physiological characters of seed. The results recommended sinker seeds of specific gravity grading and the sieve of size 9/64" (3.6 mm) round perforated metal sieve retained seeds for physical grading for maximisation of seed quality characters. Combination of these two techniques, viz., specific gravity grading followed by size grading of sinkers with 9/64" round perforated metal sieve, improved the germination of seeds to 94 per cent which was 17 per cent higher than the control.
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