УДК 631.53.04: [631.524.84: 633.8]
Authors:
M. Y. Karpukhin, S. Lyakhova
Ural State Agrarian University (Yekaterinburg, Karl Liebknecht str., 42)
Annotation. The range of natural populations of the Tibetan lofant is mainly associated with Tibet. for the middle urals, lofant tibet is a new, promising medicinal plant. The plant has not been studied, there is no information on its introduction into culture in the Russian Federation. the study on the influence of the timing of sowing seeds in the open ground on the formation of productivity of tibetan lofant was conducted for three years (2017-2019). During the experiment, it was found that the timing of sowing has a significant impact on the growth, development and productivity of Tibetan lofant. The lowest indicators were obtained in the third variant, the plants are undersized, the height did not exceed 76 cm, which is 15 cm less than in the second variant and 22 cm lower than in the first variant; the lowest apical growth rate is 0.67 cm / day and, as a result, the lowest productivity is 15.6 t / ha, which is 34.4% lower than in the control variant. In all parameters, the first variant is the leader, the plants in this variant had the highest height and speed of apical growth, which positively affected the formation of aboveground biomass and the output of medicinal raw materials per unit area. The height of the plants is maximum, on average it was 98 cm, a fairly high rate of apical growth – 0.72 cm / day. The productivity of aboveground biomass reached 23.8 t / ha.
Keywords: Tibetan lofant, sowing time, productivity dynamics, aboveground biomass
