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Abstract
Seeds of Sida species are reported to exhibit seed coat imposed dormancy posing serve problems in germination. In the present study some Pre-treatments for overcoming dormancy in Sida alnifolia L. were standardized. Among the eighteen pre-treatments tried for improving germination, chemical scarification using concentrated H2SO4 was significantly superior and recorded higher germination percentage and speed. Untreated seeds failed to germinate. Scarification of seeds with concentrated H2SO4 for higher duration of 30 minutes was selected as the best pre-treatment considering improvement in water imbibition, germination percentage, speed of germination, growth and vigour of the seedlings alongwith significant reduction in the intensity of dormancy.
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