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Monitoring the state of forest stands is an urgent task for researchers in modern environmental conditions. Scots pine is one of the main forest-forming species in the world. The article studies the quality indicators of the seeds of a pine growing in the steppe zone against the background of a spring-summer drought. The objects of research are in contrasting environmental conditions. It was found that in the studied plantations there is a very high level of empty seeds: 10-12 seeds per cone. In a plantation from an ecologically clean territory, graininess is 4.7% higher than in a plantation with anthropogenic impact. Experimental data on soil germination showed that pine seeds of the steppe region, collected under arid conditions, are absolutely not viable, germination is 0%.
Ivanov V.P. Vliyaniye pogodnykh usloviy na zhenskuyu generativnuyu sferu sosny obyknovennoy (Pinus sylvestris L.) [Influence of weather conditions on the female generative sphere of Scots pine (Pinus sylvestris L.)] / V.P. Ivanov, S.I. Marchenko, Yu.V. Ivanov // Vestnik Tomskogo gosudarstvennogo universiteta. Biologiya. [Tomsk State University Journal of Biology] - 2015. - № 3 (31). - P. 114-130. [in Russian]
Kuznetsova N.F. Osobennosti semenosheniya sosny obyknovennoy na territorii TSCHR v zasukhu 2010 g. [Peculiarities of Scots pine seed production on the territory of the Central Black Earth Region during the drought of 2010] / N.F. Kuznetsova // Khvoynyye boreal'noy zony [Conifers of the boreal zone]. - 2012 .- Vol. XXX. № 3-4. - P. 270-276. [in Russian]
Molchanov A.A. Les i klimat [Forest and climate] / A. A. Molchanov. - M.: Nauka, 1961. –280 p. [in Russian]
Kuznetsova N.F. Otsenka selektsionnogo materiala i sortoispytaniye zasukhoustoychivogo sorta sosna Ostrogozhskaya [Assessment of breeding material and variety testing of a drought-resistant variety Ostrogozhskaya pine] / N.F. Kuznetsova // Trudy KubGAU [Proceedings of the Kuban State Agrarian University]. - 2020. - № 85. - P. 104-109. [in Russian]
Serdyukova A.P. Otsenka sostoyaniya zashchitnykh lesnykh nasazhdeniy sosny obyknovennoy v zasukhu 2019 goda v stepnoy zone Voronezhskoy oblasti [Assessment of the state of protective forest plantations of Scots pine in the drought of 2019 in the steppe zone of the Voronezh region] / A.P. Serdyukova // Vestnik Michurinskogo gosudarstvennogo agrarnogo universiteta [Bulletin of Michurinsky State Agrarian University].-2020. - № 4 (63). - P. 77-80. [in Russian]