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Effects of Time of Sowing on the Quality of Flax Seed

Author(s): A.B. Siddique | D. Wright | S.M. Mahbub Ali

Journal: Journal of Biological Sciences
ISSN 1727-3048

Volume: 2;
Issue: 8;
Start page: 538;
Date: 2002;
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Keywords: Flax | seed | sowing date | viability | vigour

An experiment was conducted to identify the effects of time of sowing on the quality of flax seed. Eight sowing dates from 01.03.99 to 07.06.99 with an internal of fifteen days were tested for covering a wide range of environmental variations. Seed quality was determined by using germination percentage, emergence percentage and controlled determination test (ageing test). Starch, protein, water soluble carbohydrate and fat percentages of seeds from four selected sowings were also determined. Germination percentage of unaged seeds ranged from 94 to 99%. Germination percentage was slightly lower at the last sowing date but the effect was not significant. Raising seed moisture content followed by ageing at 50oC for 36 h decreased germination percentage markedly. In aged seeds germination increased from S1 to S4 and then decreased as sowing was delayed after that. Emergence percentage of unaged seeds ranged from 73 to 95%. Raising seed moisture content followed by ageing at 50oC for 36 h decreased emergence percentage. Sowings from 01-03-99 to 12-04-99 were given o vigorous seeds but sowing made on 12-04-99 had the highest vigour.
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