Effect of different stand densities on xylem and phloem formation in Norway spruce plantations

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F24%3A43924215" target="_blank" >RIV/62156489:43410/24:43924215 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1163/22941932-bja10140" target="_blank" >https://doi.org/10.1163/22941932-bja10140</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1163/22941932-bja10140" target="_blank" >10.1163/22941932-bja10140</a>

Result language

angličtina

Original language name

Effect of different stand densities on xylem and phloem formation in Norway spruce plantations

Original language description

Preliminary results of an investigation of the thinning effect on Norway spruce tree growth in terms of xylogenesis and phloemogenesis are presented. Three plots were selected where the stand densities were reduced by pre-commercial thinning to 1800 trees/ha (plot A; mild thinning) and 1300 trees/ha (plot C; heavy thinning) in February 2020. Plot B had no silvicultural intervention and represented a control variant (4500 trees/ha). Three dominant 14-year-old Norway spruce trees were sampled (micro-cored) for studying the xylem and phloem formation in the 2020 growing season. The total differentiation duration was determined to be around 169.7 +- 12.7-179.3 +- 4.0 days. The average number of xylem cells formed in control plot B was only 140 mature cells, plots C and A were determined to have 175 and 200 mature cells, respectively. Plot A had the fastest growth rate of all the plots studied. In all three plots (A, B, C), the beginning of the early phloem, late phloem sieve cells, and axial parenchyma cells coincided. Nonetheless, in terms of total phloem cell increase, plot C displayed the fastest growth rate among the three plots studied. The first results showed that the rate of total increment in both xylem and phloem cells, as well as the total number of produced tracheids and sieve cells, seem to be positively affected after the thinning application.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10611 - Plant sciences, botany

Project

<a href="/en/project/QK21020307" target="_blank" >QK21020307: Optimization of silviculture procedures for adaptation of forest ecosystems to climate change</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

IAWA Journal

ISSN

0928-1541

e-ISSN

2294-1932

Volume of the periodical

45

Issue of the periodical within the volume

2

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

16

Pages from-to

227-242

UT code for WoS article

001257797400005

EID of the result in the Scopus database

2-s2.0-85191620819