Adaptive potential of valeriana officinalis in conditions of forest-steppe of the Trans-Ural region

The article is devoted to the study of the influence of the timing of the valerian sowing on the yield and the quality indices of the raw material of rhizomes obtained under the conditions of the northern forest-steppe of the Trans-Ural region. The investigations were carried out in a grain-steaming crop rotation on leached chernozem. It has been established that the yield of rhizomes with the roots of valerian officinalis increases during sowing in the autumn period by 6 c / ha, while the percentage of extractivity and valepotriates increases by 7.8 and 1% respectively, relative to spring sowing, while the seeding of the raw material obtained does not depend on the sowing time.