Chemical composition of golden root (Rhodiola rosea L.) rhizomes of Carpathian origin
in four-year-lasting field experiment yielding of goldenrod herb depending on different methods of plantation establishment and row spacing were analysed. in the experiment different methods of goldenrod plantation establishment were compared: i. direct spring diaspores sowing, ii. spring seedlings planting, iii. direct autumn diaspores sowing, iV. autumn seedlings planting. diaspores were sown directly onto the field in rows of 30 cm, 40 cm, and 50 cm spacing at the amount of 500 g· ha-1, whereas seedlings were produced in multicell trays in plastic tunnel throughout 5 weeks and than transplanted onto the field in the same rows spacing (with 15 cm in-rows spacing). raw material (herb) was harvested every year at the beginning of blooming stage (at a height of 10-15 cm above the ground). The highest herb yield was obtained in the second and third year of plant vegetation. due to the fact that in the fourth year a considerable decrease of raw material yield was noted, for pharmaceutical purposes the plantation should be cultivated for three years. Cultiva- tion with 30 and 40 cm row spacing resulted in the highest yields of raw material, whereas in that of 50 cm rows spacing a significant decrease of yields was stated. direct autumn achenes sowing or spring planting of seedlings could be recommended as the best meth- ods of commercial plantation establishment.