Phenotypic Assessment of Clones of Scots Pine (Pinus sylvestris L.) Plus Trees in the Forest-Steppe Zone of the Bashkir Cis-Urals. P. 9–25

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UDС

630:575.21:582.475(470.57)

DOI:

10.37482/0536-1036-2024-4-9-25

Abstract

An assessment of the main morphometric features of the ramets of clones of Scots pine plus trees in a comparative aspect has been carried out. The vegetative progeny of plus trees of the species are represented as part of a clonal plantation created in 2005 in the Dyurtyulinskiy forestry of the forest-steppe zone of the Republic of Bashkortostan in an area with the С₂ type of forest growing conditions. Compliance with the breeding and genetic principle of phenotypic assessment of intraand intergroup differences in Scots pine clones and ramets, as well as methodical and methodological requirements for conducting the field stage of the study, has been ensured. Taxation indicators (the height and diameter of the stem, the diameter and length of the crown, the increment of the central shoot in height) have been taken into account for 100 clones at a continuous count. A varying nature of the distribution of the average values of the analyzed stem indicators in the vegetative progeny of plus trees has been revealed. The best growth in stem diameter (25.5±0.73 cm) and height (11.2±0.16 m), as well as central shoot increment (0.45±0.02 m), are typical for the progeny of clones of the plus tree 29/17. Clones 263/40, 264/41, 262/39 with taxation indicators above the average for the entire set of trees in the clone archive are of high breeding value, which indicates the specificity of the genotypes of these specimens. The levels of significance of the differences and the intensity of selection of the best clones of plus trees based on morphometric features have been determined, which indicates the different nature of the individual non-identity of each of the plus trees relative to the rest of the trees studied. The valuable genotypes of the progeny of Scots pine plus trees identified in the clone archive can be recommended for further use in forest seed breeding when creating highly productive and sustainable artificial plantations of this valuable tree species in the region.

Authors

Vladimir F. Konovalov*, Doctor of Agriculture, Prof.; ResearcherID: G-2775-2018, ORCID: https://orcid.org/0000-0003-2020-5540
Aigul A. Gabitova, Candidate of Biology, Assoc. Prof.; ResearcherID: JXX-2216-2024, ORCID: https://orcid.org/0000-0003-2310-805X
Aydar К. Gabdelkhakov, Candidate of Agriculture, Assoc. Prof.; ResearcherID: G-3023-2018, ORCID: https://orcid.org/0000-0001-7129-880X
Dina A. Rafikova, Assistant; ResearcherID: HKV-8568-2023, ORCID: https://orcid.org/0000-0003-1074-4671
El’vira R. Khanova, Candidate of Agriculture, Assoc. Prof.; ResearcherID: G-4662-2018, ORCID: https://orcid.org/0000-0001-5399-2232

Affiliation

Bashkir State Agrarian University, ul. 50-letiya Oktyabrya, 34, Ufa, 450001, Russian Federation; vfkonovalov@bk.ru*, abigabi@yandex.ru, aliya201199@mail.ru, din-ka5@mail.ru, elvira-nr@yandex.ru

Keywords

Scots pine, plus tree, clone archive, ramets, Scots pine growth, stem diameter, stem height, crown diameter, crown length, central shoot increment

For citation

Konovalov V.F., Gabitova А.А., Gabdelkhakov A.K., Rafikova D.А., Khanova E.R. Phenotypic Assessment of Clones of Scots Pine (Pinus sylvestris L.) Plus Trees in the Forest-Steppe Zone of the Bashkir Cis-Urals. Lesnoy Zhurnal = Russian Forestry Journal, 2024, no. 4, pp. 9–25. (In Russ.). https://doi.org/10.37482/0536-1036-2024-4-9-25

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