Improvement of the method of seed flotation of the main coniferous species of Russia
https://doi.org/10.21266/2079-4304.2026.258.229-245
Abstract
The paper presents the results of seed flotation of the main coniferous forestforming species in Russia. A search was conducted for effective liquids for the flotation of seeds of Scots pine, European spruce, as well as Siberian, European and Daurian larches. Before conducting the experiments, the bulk and true density of seeds, the number of full-grain seeds in the batch were determined, isopropyl alcohol with concentrations of 60%, 75% and 90% and ethyl alcohol with concentrations of 65%, 75% and 85% were prepared. A 75% solution of isopropyl alcohol turned out to be the most optimal for larches, while the soaking time varies. When using ethyl alcohol, it is necessary to distinguish the concentration: for Siberian larch, we recommend using a 75% solution with a soaking time of 0.5 hours, for European larch – an 85% solution with a holding time of 30 minutes, for Daurian larch – an 85% solution for 15 minutes.
About the Authors
A. A. Kotov
Mytishchi branch of Bauman Moscow State Technical University
Russian Federation
Russian Federation
KOTOV Aleksey A. – DSc (Technical), Professor, Department LT-1-MF
141005. 1st Institutskaya str. 1. Mytishchi. Moscow region
M. A. Lavrenov
Mytishchi branch of Bauman Moscow State Technical University
Russian Federation
Russian Federation
LAVRENOV Maksim A. – PhD (Agricultural), Associate Professor, Department LT-1-MF
141005. 1st Institutskaya str. 1. Mytishchi. Moscow region.
References
1. Avsar M.D. Using flotation in ethanol to separate filled and empty seeds of Pinus nigra ssp. pallasiana. African Journal of Biotechnology, 2010, vol. 9(25), pp. 3822- 3827.
2. Barnett J.P. Flotation in ethanol affects storability of spruce pine seeds. Tree Planters’ Notes, 1970, vol. 21, iss. 4, pp. 18-19.
3. Biodiversity of larches of Asian Russia. Novosibirsk: Geo, 2010. 159 p. (In Russ.)
4. Eavy A.L., Houseweart M.W. Reliability of ethanol flotation for testing tamarack seed. North. J. Appl. For., 1987, vol. 4, iss. 2, pp. 69-72. DOI: 10.1093/njaf/4.2.69.
5. Kovylina O.P., Kovylin N.V., Poznahirko P.S. Variability of generative organs and sowing qualities of Siberian larch seeds in protective plantations of the lake Shira. Conifers of the boreal area, 2008, vol. XXV, no. 3-4, pp. 309-315. (In Russ.)
6. Lavrenov M.A., Kotov A.A., Alyabyev A.F. Improving the method of seed flotation using the Siberian larch (Larix sibirica Ledeb.) as an example. Forestry engineering journal, 2024, vol. 14, no. 3, pp. 108-126. DOI: 10.34220/issn.2222-7962/2024.3/7. (In Russ.)
7. Sviridov L.T. Properties of forest seeds, bean fruits and substantiation of technologies, designs and parameters of seed cleaning machines: monograph. Voronezh: VGLTA, 2012. 312 p. (In Russ.)
8. Vasilyeva N.N., Demina N.A., Fayzulin D.H., Durkina T.M. Evaluation of the application of the flotation method in various liquids to improve the quality of coniferous seeds. International Journal of Humanities and Natural Sciences, 2023, no. 6-3 (81), pp. 49-53. (In Russ.)
9. Zelenyak A.K., Iozus A.P. The intensity of seed production of Siberian larch on a clone plantation. Modern problems of science and education, 2012, no. 6. URL: https://science-education.ru/ru/article/view?id=7597 (accessed: April 05, 2025). (In Russ.)
Review
For citations:
Kotov A.A., Lavrenov M.A. Improvement of the method of seed flotation of the main coniferous species of Russia. Izvestia Sankt-Peterburgskoj lesotehniceskoj akademii. 2026;(258):229-245. (In Russ.) https://doi.org/10.21266/2079-4304.2026.258.229-245
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