PJB-2024-32
Cultivation of high-quality planting material of Populus trees for decarbonization of territories of the Forest-Steppe region of the European part of Russia
Rida Sultanova, Lyubov Blonskaya and Aliya Shamsutdinova
DOI:10.30848/PJB2025-3(32)
Abstract
Fast-growing forest plantations is a profitable and economically rational method of mitigating the effects of atmospheric pollution. Soft–wooded broad-leaved species, which are the most typical for the local forests absorb the largest amount of carbon stock per year - 4930.2 thousand tons/year. The leading trees are old-growth trees and Populus trees (they absorb up to 3.6 tons of CO2 per year in terms of 1 ha). Experiments on the Populus tree cultivation (Populus nigra L. × Populus nigra var. italica Du Roi, Populus simonii f. fastigiata Schneid and Populus koreana Rehder) determined that the best rooting of cuttings occurred in a sandy substrate, which is quite natural and meets the physiological characteristics of poplars growing in natural floodplain forests. During the experiment in a sandy substrate, the survival rate of cuttings of Populus nigra L. × Populus nigra var. italica Du Roi when treated with heteroauxin was 95.8% and 115%, respectively, compared to the control. At the end of the growing season (September), the conservation index of all poplar types grown in a sandy substrate and on the open ground, and treated with heteroauxin, exceeded the control by 15-44%. Heteroauxin increased the chlorophyll content in the leaves of shoots and hastened the root elongation. Thus, poplar roots were longer than the control and reached 19.98 cm. Even if the lamina of the shoots of Populus L. × Populus nigra var. italica Du Roi was smaller, the number of leaves growing during the maximum growth was bigger (24 ± 0.84 pcs.) compared to Populus simonii f. fastigiata Schneid. (16.3± 0.59 pcs.) and Populus koreana Rehder (14.5± 0.65 pcs.). A well-developed rooting system of these trees determines their survival rate and adaptation to different environments. Since Populus trees absorb carbon very well, root by stem cuttings, and grow fast, they can be considered as fast-growing plantation of woody plants to decarbonize territories
To Cite this article:
Sultanova, R., L. Blonskaya and A. Shamsutdinova. 2025. Cultivation of high-quality planting material of Populus trees for decarbonization of territories of the Forest-Steppe region of the European part of Russia. Pak. J. Bot., 57(3): DOI: http://dx.doi.org/10.30848/PJB2025-3(32)
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