اثر ميدان مغناطيسي روي تندش بذر و رشد رويشي كاهو

EFFECT OF MAGNETIC FIELD ON SEED GERMINATION AND VEGETATIVE GROWTH OF LETTUCE

This study was accomplished to determine the effect of magnetic field on lettuce seed germination and its growth in Faculty of Agriculture of Tehran University in 2002. A preliminary experiment was conducted with different magnet diameters and 100 lettuce seed in four replications. Results showed that magnet with 2.5 teslametere intensity had significant effect, therefore, was selected for next study. The seeds were treated in petri dishes and were kept in growth chamber. The seeds imbibed and germinated more rapidly under magnet treatment. In magnet treatment seed germination percentage, radicle length, leaf area, seedling root fresh weight and seedling shoot fresh weight were significantly higher than control.