بررسی نیازهای بوم شناختی گیاه مرتعی ‭Salvia leriifolia‬

Salvia leriifolia is a member of Labiateae family that has been observed and reported in Khorasan and Semnan provinces of Iran. Researches showed that shoots of this plant have essence and antibiotic effects. Seed s endoderm contains 50-56% fat and 30% protein and has been introduced as a new vegetative oil and protein source. Outer epidermis contains mucilage. After ripening of seeds in mid-may that spring forage of desert ranges will deplete, seeds of this plant are suitable source of food for light animals and wildlife. In this study, the growth types, the height of growth location, amount of precipitation and other climatologic factors, geological structure, type of soil, inherent plants, aspect of slope were investigated. On the other hand the phenology of plant was studied due to growth type, plant form, date of growth beginning, stemming, flowering, seeding, dormancy periods and propagation, system of plant. Results of this investigation showed that: shrub form of salvia was observed in the range of 900 to 1600 meter height from sea level. The distribution of this plant was in the extremely arid cold deserts with average annual precipitation of 150-200 millimeters at stony mountains, conglomerate mountains marls and stony colluvials. The growth of this plant in very poor and sandy soils and also existence of single shrubs of this plant at hardly available sites of marl and calcareous soils is related to the wide range of tolerance of this specie. Development of this plant was observed on light soils and root development was measured in 80 cm depth meanly and its distribution was measured to 160-cm depth. This plant was generally existed on south aspect of slopes. Salvia was oftenly observed with plant types of: - Salsola Artemisia , Artemisia, and Artemisia -Peterpyrum . The phenologic steps of salvia showed that this plant begins it s vegetative growth, after winter cool in early march, and the growth of stems begins in late march (related to environmental conditions) and it s propagative growth will end unto mid-may. The amount of propagation in the years with proper precipitation was good and if be protected will tolerate the hard conditions of climate and animal grazing at other years. Studies on marketing and propagation of this plant can introduce new jobs and opportunity of entrance of this plant to the list of oil seeds. Key words: Autecology, Salvia leriifolia, Novroozak, Sabzevar.