RT info:eu-repo/semantics/article
T1 Kaolin foliar-application improves the photosynthetic performance and fruit quality of Verdejo grapevines
A1 González García, María Rosa
A1 Martín Peña, Pedro
A1 Azuara, Marie
A1 Mangas, Rafael
K1 Caolín
K1 Uva
K1 3309.29 Vino
K1 3103.01 Producción de Cultivos
AB Currently there is an urgent need to adapt vineyards to climate change in order to maintain and improve the quality of wines. In this context, it has been shown that the creation of a film of mineral particles, such as kaolin, on the vegetation can reduce stress caused by high temperatures in plants. The present study evaluated the effects of kaolin foliar-applications, from fruit set to veraison, on the physiological and agronomic behavior of a Verdejo white variety vineyard located in DOP Rueda (Spain). Compared to the controls, treated plants showed an increase in the photosynthetic performance, registering higher values of chlorophyll fluorescence parameters such as Fv/Fm, ΦPSII and ETR, and lower values of F0. Without affecting vigor and yield, grapes from treated vines produced musts with lower pH and phenolic content and greater color luminosity than those of untreated vines. The presented results suggest that kaolin treatments could be an effective tool to minimize the negative effects of climate change on the quality potential of white grape varieties grown in continental areas.
PB EDP Sciences
SN 2117-4458
YR 2023
FD 2023
LK https://uvadoc.uva.es/handle/10324/67386
UL https://uvadoc.uva.es/handle/10324/67386
LA eng
NO BIO Web Conferences, 2023, vol. 68, 01024
NO Producción Científica
DS UVaDOC
RD 12-jul-2024