Cours/Séminaire
Notice
Lieu de réalisation
en visio
Crédits
Valentin Cognard (Montage), Guillaume Charrier (Intervention), Thierry Améglio (Intervention)
Citer cette ressource :
Guillaume Charrier, Thierry Améglio. RTRMD. (2022, 23 septembre). #7 « How to make trees talk about their frost resistance? » , in LIA FORESTIA web seminars round 2022. [Vidéo]. Canal-U. https://www.canal-u.tv/134138. (Consultée le 18 juin 2024)

#7 « How to make trees talk about their frost resistance? »

Réalisation : 23 septembre 2022 - Mise en ligne : 24 octobre 2022
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Descriptif

SEMINAR # 7 : « How to make trees talk about their frost resistance? » 

Guillaume Charrier (Speaker) & Thierry Ameglio, 
INRAE, UMR PIAF, France

 Abstract

Frost stress is one of the most important limiting factors in the ecological distribution and production of tree species, especially at high elevation and latitude. Assessment of frost risk is therefore critical for forestry, fruit production, and horticulture. Frost risk is substantial when the hazard (i.e. exposure to damaging freezing temperatures) exceeds the vulnerability (i.e. frost sensitivity). Frost affects both living cells and dead xylem elements and alters their hydraulic function by inducing embolism. The authors developed methods (LT50, ultrasonic acoustic emission and high resolution dendrometer measurements) to better the effect of frost in different tree species and growth forms and its relevance to plant life at high elevation but also to improve knowledge on frost tolerance and plant resilience in general.

 >> Next seminar on November 18th by Leopoldo Sanchez, INRAE

Intervention

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