background & aim: sage (salvia officinalis l.) is a perennial medicinal herb which belongs to lamiales order and lamiaceae family. this plant has economical value for four years. nowadays the use of plant growth regulators (pgr) has an important role for increasing the secondary metabolites in plants. among pgrs jasmonic (ja) and salicylic acid (sa) have many applications in medicinal plant...

Thyme (Thymus vulgaris L.) is a commonly used flavoring agent and medicinal herb. Several chemotypes of thyme, based on essential oil compositions, have been established, including (1) linalool; (2) borneol; (3) geraniol; (4) sabinene hydrate; (5) thymol; (6) carvacrol, as well as a number of multiple-component chemotypes. In this work, two different T. vulgaris essential oils were obtained fro...

introduction sahandian savory (satureja sahandica bornm.) is an indigenous perennial aromatic plant growing in the west and north west of iran. its growing season starts from march till end of september. oil and its quality are abundantly variable among different savory species (ahmadi et al., 2009). although, thymol, p-cymene and γ-terpinen have been determined as the main components of sahand...