ABSTRACT
Background: Arbuscular mycorrhizal fungi [AMF] have the potential to optimize the rhizospheric soil characteristics considerably thereby affecting plant growth
Objectives:The aim is to investigate the effects of fungi inoculation [Glomus intraradices] on morphological, physiological and phytochemical traits of Rosemary [Rosemarinus officinalis L.] under salt stress
Methods: A factorial experiment was conducted on the basis of randomized complete blocks design in three replications at the Institute of Medicinal Plants in the Academic Center for Education, Culture and Research [ACECR]. The mycorrihzal fungi in two levels [inoculation and non-inoculation] and saline conditions in five levels [EC of 0, 2, 4, 6 and 8 dS.m[-1]] were the two studied factors. The essential oil content and its components were measured with Clevenger-type apparatus and GC/Mass and GC
Results: The results showed that the interaction effect of fungi inoculation and salinity was significant [P=0.01] on morphological and phytochemical traits. The highest number of shoots per plant in fungi inoculation and salinity of 2 dS.m[-1], number of leaves per plant in fungi inoculation and salinity of 6 dS.m[-1], stem diameter in non-inoculation and salinity of 8 dS.m[-1] was recorded, while the maximum leaf width in non-inoculation and salinity of 2 dS.m[-1], stems fresh weight in fungi inoculation and control and, roots fresh and dry weight in treatment of fungi inoculation for both traits and salinity of 8 dS.m[-1] and 6 dS.m[-1] was recorded, respectively. Also, interaction effect of fungi inoculation and salinity significantly increased essential oil content and its components
Conclusion: The phytochemical and morpho-physiological traits of rosemary were improved due to inoculation of mycorrhizal fungi under saline conditions