en Determination of Volatile Oil Constituents in Root and Shoot of <i>Moringa peregrina</i> (Forssk.) Fiori in Saline Soil كشاورزی و اتنوبوتانی Agriculture & Ethnobotany پژوهشی Research <div dir="ltr" style="text-align: justify;"><strong>Background: </strong><em>Moringa peregrina</em> (Forssk.) Fiori. is a small tree, which grows in south east of Iran. The shoot and root of <em>M. peregrina</em> contain volatile oil which has several isothiocyanates. <strong>Objective:</strong> To study the effect of salinity on volatile constituents of root and shoot of <em>M. peregrina</em>. <strong>Methods:</strong> The experiment was conducted on randomized complete blocks design (RCBD) with 8 treatments and 3 replications. The treatments were consist of control, 2, 4, 6, 8, 10, 12 and 14 dS/m. The volatile constituents were determined by GC and GC/MS. <strong>Results:</strong> The results showed that the main constituent of volatile oil in control treatment was 1,2&ndash;benzendicarboxylic acid, bis (2-methyl propyl) (29.02%) which decreased with increasing salinity. In salinity treatments, the isothiocyanates compounds such as isobutylisothiocyanate and 2-isothiocyanatepropan were increased. In control level of salinity, the main compound of root volatile oil was thiocyanic acid phenylmethyl ester (29.6%) but was not found in the salinity treatment. The content of isothiocyanates in the shoot increased with increasing salinity up to 4dS/m. <strong>Conclusion:</strong> The level of salinity had significant effect on volatile oil content and component of <em>M. peregrina</em>.</div> <div dir="ltr" style="text-align: justify;"><strong>Background: </strong><em>Moringa peregrina</em> (Forssk.) Fiori. is a small tree, which grows in south east of Iran. The shoot and root of <em>M. peregrina</em> contain volatile oil which has several isothiocyanates. <strong>Objective:</strong> To study the effect of salinity on volatile constituents of root and shoot of <em>M. peregrina</em>. <strong>Methods:</strong> The experiment was conducted on randomized complete blocks design (RCBD) with 8 treatments and 3 replications. The treatments were consist of control, 2, 4, 6, 8, 10, 12 and 14 dS/m. The volatile constituents were determined by GC and GC/MS. <strong>Results:</strong> The results showed that the main constituent of volatile oil in control treatment was 1,2&ndash;benzendicarboxylic acid, bis (2-methyl propyl) (29.02%) which decreased with increasing salinity. In salinity treatments, the isothiocyanates compounds such as isobutylisothiocyanate and 2-isothiocyanatepropan were increased. In control level of salinity, the main compound of root volatile oil was thiocyanic acid phenylmethyl ester (29.6%) but was not found in the salinity treatment. The content of isothiocyanates in the shoot increased with increasing salinity up to 4dS/m. <strong>Conclusion:</strong> The level of salinity had significant effect on volatile oil content and component of <em>M. peregrina</em>.</div> ,Moringa peregrina, Moringaceae, Salinity, Volatile oil Moringa peregrina, Moringaceae, Salinity, Volatile oil 87 96 http://jmp.ir/browse.php?a_code=A-10-44-2&slc_lang=en&sid=1 M Salehi M Salehi 100319475328460041954 100319475328460041954 No Department of Medicinal Plants Production, Nahavand University, Nahavand, Iran Department of Medicinal Plants Production, Nahavand University, Nahavand, Iran H Naghdi Badi H Naghdi Badi Naghdibadi@yahoo.com 100319475328460041955 100319475328460041955 Yes Cultivation & Development Department of Medicinal Plants Research Center, Institute of Medicinal Plants, ACECR, Karaj, Iran Cultivation & Development Department of Medicinal Plants Research Center, Institute of Medicinal Plants, ACECR, Karaj, Iran N Majnoon Hosseini N Majnoon Hosseini 100319475328460041956 100319475328460041956 No Department of Agronomy and Plant Breeding, Faulty of Agricultural Science, Tehran University, Karaj, Iran Department of Agronomy and Plant Breeding, Faulty of Agricultural Science, Tehran University, Karaj, Iran D Mazaheri D Mazaheri 100319475328460041957 100319475328460041957 No Department of Agronomy and Plant Breeding, Faulty of Agricultural Science, Tehran University, Karaj, Iran Department of Agronomy and Plant Breeding, Faulty of Agricultural Science, Tehran University, Karaj, Iran