Effect of Salinity on Germination and Growth Rapeseed (Brassica napus L.) Cultivars Seeds

چکیده مقاله

Salinity is the most important and affect factor in Canola production and germination. In order to evaluation of salinity on germination and seedling growth of 6 canola cultivars factorial experimental was carried out based on complete randomized design includes 5 salinity levels (0, 50, 100, 150 and 200 Mm NaCl) and 6 canola cultivars (Licord, SLMO46, Okapi, Orient, Zarfam and Opera) with 3 replications. In this experiment after 7 days, germination seed (MTG1, MDG2, FGP3), length of whole plant, root and shoot, root/ shoot ratio, hard seed, normal and abnormal seedling were measured. Analysis of variance revealed significant effect (p<0.01) among salinity levels. Cultivar had significant effect on FGP, hard seed, MTG (p<0.01) and abnormal (p<0.05) but interaction of cultivar × salinity levels had no significant differences. Mean Comparison showed that increasing of salinity levels caused to decrease MDG, FGP, total, root and shoot length and abnormal seedling but MTG, root/shoot ratio and hard seed were increased. Among cultivars, Okapi were the best for salinity situation.

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