Intra-specific variability of stomatal sensitivity to vapour pressure deficit in Corylus avellana L.: A candidate factor influencing different adaptability to different climates?
Adaptation
Hazelnut
Stomatal limitation
Tonda Gentile delle Langhe
Journal
Journal of plant physiology
ISSN: 1618-1328
Titre abrégé: J Plant Physiol
Pays: Germany
ID NLM: 9882059
Informations de publication
Date de publication:
Jan 2019
Jan 2019
Historique:
received:
20
09
2018
revised:
17
11
2018
accepted:
19
11
2018
pubmed:
14
12
2018
medline:
23
1
2019
entrez:
14
12
2018
Statut:
ppublish
Résumé
Stomatal conductance is regulated by many factors such as air vapour pressure deficit (D), which can be the pivotal one affecting leaf gas exchange in species particularly sensitive to D such as C. avellana. The aim of this work was to evaluate stomatal sensibility to D and to determine correlations with hydraulics characteristics of leaves in three genotypes of C. avellana selected over centuries under different climatic conditions in the Italian peninsula. Among the three varieties Tonda Gentile delle Langhe (TGL), which was the one coming from northern Italy suffered the largest stomatal limitation at increasing levels of D in comparison with the other two cultivars [Tonda Romana (TR) and Tonda di Giffoni (TG), selected in central and southern Italy, respectively]. In all genotypes, photosynthesis decreased at high D although the reduction was mostly due to the rising of the temperature as suggested by the high values of sub-stomatal concentration of CO
Identifiants
pubmed: 30544052
pii: S0176-1617(18)30635-7
doi: 10.1016/j.jplph.2018.11.019
pii:
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
241-247Informations de copyright
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