Understanding kaolin effects on grapevine leaf and whole-canopy physiology during water stress and re-watering.
Climate change
Gas exchange
Leaf evaporative cooling
Vitis vinifera L.
Water loss
Water use efficiency
Journal
Journal of plant physiology
ISSN: 1618-1328
Titre abrégé: J Plant Physiol
Pays: Germany
ID NLM: 9882059
Informations de publication
Date de publication:
Nov 2019
Nov 2019
Historique:
received:
17
05
2019
revised:
04
08
2019
accepted:
07
08
2019
pubmed:
27
8
2019
medline:
13
3
2020
entrez:
27
8
2019
Statut:
ppublish
Résumé
Kaolin applications have been investigated in grapevines to understand cooling effects on leaves and clusters and the relative impact on gas exchange, leaf biochemistry, water use efficiency, glyco-metabolism and hormonal patterns. Several Almost all previous contributions have relied upon single-leaf measurements, leaving uncertainty on whole canopy performances, depending on the complexity of a canopy system vs. individual leaves. In our study, kaolin was sprayed at pre-veraison (DOY 204) on potted mature vines (cv. Sangiovese) and washed off a month later (DOY 233), while control vines were left unsprayed. Within control (C) and kaolin (KL) treated vines, well-watered (WW) and water stress (WS) treatments were also imposed over a 10-day period (DOY 208-217) and all vines were re-watered when the WS reached its peak (stem water potential between -1.3 and -1.6 MPa). Single leaf measurements included leaf surface temperature by thermal imaging (Leaf T
Identifiants
pubmed: 31450036
pii: S0176-1617(19)30133-6
doi: 10.1016/j.jplph.2019.153020
pii:
doi:
Substances chimiques
Water
059QF0KO0R
Kaolin
24H4NWX5CO
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
153020Informations de copyright
Copyright © 2019. Published by Elsevier GmbH.