Growth and Development of Planting Material of Scots Pine (Pinus Sylvestris L.) Under the Influence of Bioorganic Compositions From Basidiomycetes and Cerium Dioxide Nanoparticles

Abstract

Objective. To research the influence of bioorganic composition Bioekofunge-1 and cerium dioxide nanoparticles on growth and development of planting material of Scots pine (Pinus sylvestris L.). Methods. Biotechnological, environmental, virological and microbiological methods. Results. The stimulating effect of Bioekofunge-1 and cerium dioxide nanoparticles on planting material of Scots pine, namely acceleration of growth and development of both aboveground and underground organs of pine plants, has been demonstrated. Specifically, we have found that treatment of Scots pine seedlings with 0.5 % Bioekofunge-1 solution results in average increase of height by 39.05 % and average increase in weight of roots by 51.85 % compared to the control group treated with water. Also, we have shown that treatment of Scots pine seedlings with 0.5 % Bioekofunge-1 solution and 0.001 % solution of cerium dioxide nanoparticles results in increase of height by 31.25 % and average increase in weight of roots by 23.49 % compared to the control group treated with water. Our research has brought to light antipathogenic and healing effect of integrated treatment with cerium dioxide nanoparticles and bioorganic composition Bioekofunge-1, namely 3-7 % of Scots pine seedlings in the control group had ring rotting near the root collar, which was absent in the seedlings, which were treated with 0.5 % Bioekofunge-1 solution and 0.001 % solution of cerium dioxide nanoparticles. At the same time, soil environment in which the plants of the control group were grown, was contaminated with pathogens of different taxa, while soil environment where plants treated with both Bioekofunge-1 and Bioekofunge-1 in combination with cerium dioxide nanoparticles were grown, did not contain pathogens. Conclusion. Applying both Bioekofunge-1 and Bioekofunge-1 in combination with cerium dioxide nanoparticles is an effective way to obtain healthy planting material of Scots pine. It was established that these agents stimulate the growth and development of Scots pine plants.