Low resistance but high resilience to drought of flushing Norway spruce seedlings

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F21%3A43920464" target="_blank" >RIV/62156489:43410/21:43920464 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1093/treephys/tpab043" target="_blank" >https://doi.org/10.1093/treephys/tpab043</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1093/treephys/tpab043" target="_blank" >10.1093/treephys/tpab043</a>

Result language

angličtina

Original language name

Low resistance but high resilience to drought of flushing Norway spruce seedlings

Original language description

Spring drought episodes are becoming more frequent and intensive in European temperate forests. To study tree resilience to spring drought, Norway spruce seedlings were exposed to three levels of drought stress (well-watered (W), moderately stressed (M) and severely stressed (S)) for 42 days and then fully irrigated for 14 days. Drought strongly reduced gas exchange parameters for both M and S seedlings. After 42 days, stomatal conductance was lower by 83 and 97% in M and S, respectively, than in W seedlings. Respiration prevailed over photosynthesis in S seedlings at the end of the drought period. Drought mostly reduced longitudinal growth, especially in shoots and needles. Xylem growth reduction was caused mainly by a lower number of newly produced tracheids, not by changes in their size. Norway spruce seedlings showed good resilience to spring drought, as the observed physiological parameters started to recover after rewatering and seedlings started to sprout and form new tracheids. In M seedlings, all physiological traits recovered to the level of W seedlings during the 14-day irrigation period but the recovery took longer in S seedlings. Shoots and needles did not regrow in length but leaf mass per area increased during the recovery phase. To conclude, Norway spruce seedlings showed good resilience to spring single-drought event, but time necessary to full recovery from stress could make seedlings more vulnerable to recurrent drought events.

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

40102 - Forestry

Project

<a href="/en/project/LTT20017" target="_blank" >LTT20017: Participation of the Czech Republic in the network of experiments TreeDivNet</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year

2021

Confidentiality

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

Name of the periodical

Tree Physiology

ISSN

0829-318X

e-ISSN

—

Volume of the periodical

41

Issue of the periodical within the volume

10

Country of publishing house

GB - UNITED KINGDOM

Number of pages

13

Pages from-to

1848-1860

UT code for WoS article

000710987200007

EID of the result in the Scopus database

2-s2.0-85118282989