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Pak. J. Bot., 47(2): 407-411, 2015.

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AMELIORATING INFLUENCE OF SULFUR ON GERMINATION ATTRIBUTES OF CANOLA (BRASSICA NAPUS L.) UNDER CHROMIUM STRESS

SUMMERA JAHAN, SUMERA IQBAL^*, KHAJISTA JABEEN AND SARA SADAF

Abstract: An experiment was performed to evaluate the role of sulfur to induce tolerance in Brassica napus L. against chromium stress by estimating the changes in germination parameters. Petriplates were assembled in Randomized Complete Block Design. A total 9 sets of treatments viz., control, chromium treated (40 and 160ppm), sulfur treated (50 and 150ppm) and sulfur (50 and 150ppm) combined with chromium (40 and 160ppm) with three replicates was used. Chromium under both concentrations was responsible for significant decline in germination parameters i.e. germination percentage, germination rate, seedling vigor index, shoot and root length, fresh weight and dry weight of seedlings. Sulfur application under chromium stress resulted in improvement of germination parameters such as germination percentage, germination rate, seedling vigor index, shoot and root length, fresh weight and dry weight of seedlings in contrast to chromium treatment. So, it can be concluded that sulfur in appropriate dose can be used to ameliorate the negative effects of chromium by increasing the germination potential of canola.

Key words: Canola, Haevy metal, Seed germination, Sulfur.

Department of Botany, Lahore College for Women University, Lahore, Pakistan

^*Corresponding author's e-mail: sumeraiqbal2@yahoo.com