TY - JOUR T1 - Investigation of Quantitative and Qualitative Parameters of Canola under Salty Conditions for Determining the Best Tolerance index TT - بررسی صفات کمـّی و کیفی عملکرد کلزا تحت شرایط تنش شوری و شناسایی بهترین شاخص مقاومت JF - JCPP JO - JCPP VL - 12 IS - 43 UR - http://jcpp.iut.ac.ir/article-1-822-en.html Y1 - 2008 SP - 65 EP - 78 KW - Quantitative and qualitative parameters KW - Salinity KW - Tolerance indices KW - Canola N2 - To study the effect of salt stress on quantitative and qualitative parameters of canola (Brassica napuse. L) cultivars, and determine the possible mechanisms of salt tolerance and the best salt tolerance indices, an experiment was conducted under a rain-shelter at experimental field of university of Kerman in 2004. The experimental design was a complete randomized block (RCOD) with four replications. Treatments consisted of all combinations of different levels of three factors including variety (Kobra×Regent, Ceres and Okapi), salt types (NaCl and CaCl2) and electrical conductivity of saline solution (0, 4, 8 and 12 dS/m). All treatments were randomly distributed in each replication. Results of the analysis of variance showed that grain yield, yield components, oil and protein contents were significantly affected by salinity (P< 0.001). All the mentioned traits reduced with increasing salinity. It was also found that there were significant differences among genotypes for the mentioned traits. Cultivar of Kobra×Regent showed the highest values of the above traits except for the oil content. Proline, protein and sugar contents were also affected significantly by salinity (P M3 ER -