جستجوی مقالات مرتبط با کلیدواژه « آویشن خراسانی » در نشریات گروه « زیست شناسی »

Cultivation programming of medicinal plants is necessary for curing، limiting natural habitats، little reproduction and inexpedient cutting. The aim of this research to determine the most suitable treatment to overcoming seed dormancy and germination of Thymus transcaucasicus and Zataria moltiflora were conducted. Seeds of species were collected from their main habitats and treatments were tested including Gibberllic acid (for 100، 500 and 1000 ppm)، cold (10، 20 and 30 days)، Thio urea 1 Molar and KNO3. Seeds were sown in Petridishes for 15 days. This experiment was conducted in a completely randomized design with four replications. The results of analysis of variance showed that the effect of various treatments on Thymus transcaucasicus and Zataria moltiflora seeds germination percentage were highly significant different (p<0. 01). Treatments of gibberllic acid 100 PPM and Cold (10 and 20 days) have the highest seed germination percentage on Thymus transcaucasicus and KNO3 and Cold (10 and 20 days) on Zataria moltiflora seeds. The highest and lowest vigor index was in Thymus transcaucasicus، gibberllic acid 100 PPM (16. 2) and KNO3 (2. 4)، in Zataria moltiflora Thio urea 1 Molar (10. 9) and Cold 20 days (1. 37).