Results 41 to 50 of about 10,121,885 (176)

PHENOLIC COMPOUNDS OF CEDAR WOOD (SIBERIAN PINE) PINUS SIBIRICA DU TOUR.

open access: yeschemistry of plant raw material, 2020
As part of the study of extractives of biomass of coniferous trees of Siberia in order to predict the possibility of obtaining valuable biologically active products, a study was conducted of the chemical composition of the ethyl acetate extract of cedar wood (Siberian pine) Pinus sibirica Du Tour.
Tat'yana Yevgen'yevna Fedorova   +2 more
openaire   +3 more sources

Analysis of linear growth of Korean pine undergrowth (Pinus koraiensis sieb.et zucc) (Primorsky territory) [PDF]

open access: yesE3S Web of Conferences, 2020
Today, reforestation is becoming a priority task for Russia’s forest policy, but many issues are still poorly understood. When developing forest plantation, many factors, both biotic and abiotic, are not taken into account, which leads to the death of ...
Rozlomiy Natalia   +2 more
doaj   +1 more source

Pinus sibirica Du Tour RESPONSE TO CLIMATE CHANGE IN THE FORESTS OF THE KUZNETSK ALATAU MOUNTAINS

open access: yesСибирский лесной журнал, 2019
Climate change has a direct impact on the forest ecosystems of the boreal zone. Temperature increase has a stimulating effect on the advancement of a tree line along the elevation gradient, increase of tree radial increment and stand density. The object of the study was the stands formed by the Siberian pine growing in the forest-tundra ecotone of ...
I. A. Petrov   +3 more
openaire   +2 more sources

Weather Conditionality of Siberian Stone Pine (Pinus sibirica Du Tour) Seeding

open access: yesLesnoy Zhurnal (Forestry Journal), 2021
The dynamics of Siberian stone pine sexual reproduction in the South-Eastern part of the West Siberian Plain was studied by 13-year stationary observations. The stand age was 160–180 years, the average tree height was 22 m, and the average diameter of the trunk at breast height was 53 cm.
openaire   +2 more sources

CHARACTERISTICS OF CONES AND SEEDS OF Pinus sibirica Du Tour AT TREE LINE IN THE CENTRAL ALTAI

open access: yesСибирский лесной журнал, 2016
We studied the cones of Siberian stone pine (Pinus sibirica Du Tour) at its treeline in the forest tundra ecotone in the Severo-Chuisky Range, the Altai Mountains, Russia. We have registered length, diameter and form of apophysis, the number of sterile and fertile scales in the cones, the number of ovules and the number of seeds, including developed ...
E. O. Filimonova, E. E. Timoshok
openaire   +2 more sources

Allozyme evidence for polyzygotic polyembryony in Siberian stone pine (Pinus sibirica Du Tour)

open access: yesTheoretical and Applied Genetics, 1995
Approximately 4000 mature seeds from 350 trees in nine populations (12-75 trees per population) of Siberian stone pine were investigated for multiple embryos (polyembryony). Haploid megagametophytes and embryos were genotyped for eight allozyme loci. Eight-yone seeds (2.11%) had more than 1 embryo.
Krutovskii, K. V., Politov, D. V.
openaire   +3 more sources

Identifying Timber Species by Diffuse Reflection Spectra in the Near-Infrared Region Using a Linear Discriminant Analysis

open access: yesТеория и практика судебной экспертизы, 2022
The article presents an algorithm of analysis of coniferous timber materials (Pinus sylvestris L., Pinus sibirica Du Tour, Larix decidua Mill., Abies alba L. and Picea abies (L.) Karst.) using the spectroscopy method in the near-infrared region.
A. N. Khokh, V. B. Zvyagintsev
doaj   +1 more source

Alpine flora of Kashmir Himalaya: floristic assessment, life history traits and threat status

open access: yesNordic Journal of Botany, Volume 2026, Issue 7, July 2026.
Alpine ecosystems in the Himalaya are considered to be at a higher risk to anthropogenic global change drivers. The Kashmir Himalaya, located in the north‐western side of the Himalayan biodiversity hotspot, harbors a diverse alpine flora, which remains systematically little investigated.
Bilal A. Rasray   +5 more
wiley   +1 more source

Anatomycal, morphological and biochemical features of Pinus sibirica needles on recultivated and non-recultivated ash dump sites in the Middle Urals [PDF]

open access: yesBIO Web of Conferences
The article presents the results of anatomical, morphological and biochemical study of Pinus sibirica Du Tour needles of fly ash dumps and natural habitats in the Middle Urals. The study has shown that there was an increase in the area of resin ducts, as
Chukina Nadezhda   +5 more
doaj   +1 more source

A new approach to developing a logistic regression model variables to predict tree mortality, based on tree-ring growth dynamics [PDF]

open access: yesСибирский лесной журнал, 2020
The annual tree increment is one of the integral indicators of abiotic and biotic processes occurring in the forest ecosystem. The use of logistic regression models based on annual tree-ring growth data is a promising approach to studying tree mortality.
А. V. Kachaev   +3 more
doaj   +1 more source

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