Effect of methyl jasmonate on Germination index, proline and peroxidaze enzyme activity at fennel (Foeniculum vulgare Mill) under NaCl stress

This study was carried out fennel (Foeniculum vulgare Mill) under NaCl stress, seed germination with Methyl jasmonate priming. a factorial experiment at CRD design with three replications in 2014-2015 at the Faculty of Agriculture, Islamic Azad University of Shiraz. the factor A:includes Methyl jasmonate(MeJa) at three levels (0, 500 and 1000 mg/l) and factor (B): sodium chloride(NaCl) at 4 levels (0, 2.5, 5 and 7.5 dS/m). The characteristics such as Rate and percentage of germination, proline content and peroxidase. The results indicated that concentration of 1000 mg/l of MeJa led to increased germination under Control (100 %). Priming of Fennel seeds at 500 and 1000 mg/l of MeJa increase the germination rate were in Control. 1000 mg/l of MeJa led to the largest concentration of proline content in moderate NaCl stress conditions (5 dS/m) and severe (7.5 dS/m) is observed. Based on the results obtained from the interaction between priming and different concentrations of NaCl was found that priming of fennel seeds by 500 mg/l of MeJa increase peroxidase activity at 7.5 dS/m of NaCl. Finally, the results showed that Priming of fennel seeds by MeJa improve seed index, proline and peroxidaze enzyme activity at NaCl stress.