Оstroshenko V. YU., Оstroshenko L. YU.
Agrohimia 2021; (10): 11-16
Khingan fir (Abies nephrolepis (Trautv.) Maxim.) is a coniferous tree species that is widely used in the national economy of the Far East. It is a rock-protecting and water-regulating wood species, it is used in landscape construction. However, logging and the resulting forest fires lead to a reduction in the range of fir, so it is necessary to restore it. This is possible due to the use of growth stimulants. The aim of the study was to study the effect of various concentrations of the growth stimulant Ecopin on the seed sowing qualities (germination energy, laboratory germination of seeds) and morphometric indicators (length and weight) seedlings of Khingan fir (white-bark). As a result of the experiments, it was found that the drug had a positive effect on the energy of seed germination at all concentrations of the solutions used, amounting to 4.0–16.1%, which exceeded the control by 21.2–388%. The laboratory germination was actively influenced by Ecopine solutions of 2 × 10–3–7 × 10–3 ml/l, at which it was 14–37%, which is more than the control indicators by 48.9–294%. An increase in the quality class of seeds was noted – from the 3rd to the 2nd and 1st. All Ecopin concentrations were effective for increasing the length and weight of seedlings, exceeding the control indicators by 7.7–40 and 14.3–87.2%, respectively.
