Response evaluation of Satureja hortensis L. to biofertilizers under salinity stress

Satureja hortensis L. is a valuable medicinal and aromatic plant with numerous applications in the pharmaceutical and food industries. The use of natural inputs is a key strategy for cultivating this plant sustainably, as they can provide essential nutrients and help mitigate the effects of salinity stress. Thus, this study aimed to investigate the effect of salinity stress and biofertilizers on the morphological and physiological traits of savory. Experimental treatments were biofertilizers at four levels (control, Pseudomonas fluorescens, Sargassum boveanum, and Pseudomonas fluorescens + Sargassum boveanum) and salinity stress at four levels (۰, ۵۰, ۱۰۰, and ۱۵۰ mM). The research was set up as a factorial experiment using a randomized complete block design with four replications at the greenhouse of the Faculty of Agriculture of the Kurdistan University in ۲۰۲۳. The results indicated that these mentioned traits reduced with increasing salinity stress levels. Algae and bacteria significantly increased plant height (۳۱.۱۲ cm), root length (۱۴.۱۱ cm), root volume (۴.۰۴ ml), dry weight of aerial part (۱۷.۹۳ g), protein (۲۱.۷۶ mg. g-۱ Fw), and malondialdehyde of savory under salinity stress condition. Also, the interaction of biofertilizer and salinity stress significantly affected proline (۷.۰۱ mg. g-۱ Fw), chlorophyll (۱.۷۶ mg. g-۱ Fw), and peroxidase enzyme (۰.۴ unmin-۱ mg-۱ protein). Considering the results of this research indicating a positive and significant effect of bio-fertilizers on the studied traits, especially under salt stress, it can be proposed as a strategy to reduce the adverse effects of salinity.

کلیدواژه ها:

Pseudomonas ، Salinity stress ، Sargassum boveanum ، Savory ، تنش شوری ، جلبک دریایی ، سودوموناس ، مرزه