How needle phenology indicates the changes of xylem cell formation during drought stress in Pinus sylvestris L

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F19%3A43915784" target="_blank" >RIV/62156489:43410/19:43915784 - isvavai.cz</a>

Alternative codes found

RIV/86652079:_____/19:00506004

Result on the web

<a href="https://doi.org/10.1016/j.dendro.2019.05.004" target="_blank" >https://doi.org/10.1016/j.dendro.2019.05.004</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.dendro.2019.05.004" target="_blank" >10.1016/j.dendro.2019.05.004</a>

Result language

angličtina

Original language name

How needle phenology indicates the changes of xylem cell formation during drought stress in Pinus sylvestris L

Original language description

Temperature, water availability and photoperiod are the primary drivers of tree phenological processes. However, there is lack of information how the spring temperature and summer drought affect phenology of both cambium and needles. We evaluated the interplay between xylem and needle development of mature Scots pine trees in three consecutive years differing in the spring temperatures and onset and duration of summer drought. Cambial activity began on the day of a year (DOY) 83-87, while the bud break occurred on DOY 113-119, when also the secondary cell wall of tracheids started its formation. While the timing of bud break correlated with the sum of effective temperatures, the beginning of cambial zone activity did not. The needles were fully unfolded around DOY 170, which corresponded to the transition between earlywood and latewood tracheids. Summer drought did not affect needle development, but it changed the rate of production and morphology of latewood tracheids. Latewood tracheids from the year 2015 when the drought was longest (i.e. until the second half of August in 2015 compared to the duration from June until the middle of July in the two other years) were 32% narrower and they had 34% thinner cell walls than in 2014 and 2016. The improvement of tree water status in July resulted in the formation of intra-annual density fluctuations (IADF). The interplay between needle and cambium phenology provided an insight into how the tree allocates the resources with varying temperature and soil water availability.

Czech name

—

Czech description

—

Type

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

CEP classification

—

OECD FORD branch

40102 - Forestry

Project

<a href="/en/project/LO1415" target="_blank" >LO1415: CzechGlobe 2020 – Development of the Centre of Global Climate Change Impacts Studies</a><br>

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2019

Confidentiality

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

Name of the periodical

Dendrochronologia

ISSN

1125-7865

e-ISSN

—

Volume of the periodical

56

Issue of the periodical within the volume

August

Country of publishing house

DE - GERMANY

Number of pages

12

Pages from-to

125600

UT code for WoS article

000476626800005

EID of the result in the Scopus database

2-s2.0-85066957699