RT Journal Article
T1 Assessment of symptoms of grapevine leafroll disease and relationship with yield and quality of pinot noir grape must in a 10-year study period
A1 Cabaleiro Sobrino, Cristina
A1 Pesqueira Méndez, Ana María
A1 García Berrios, Julián
K1 Grapevine
K1 Virus
K1 GLRaV
K1 Symptoms
K1 Severity
K1 Incidence
K1 Losses
K1 Leafroll
AB Grapevine leafroll disease (GLD) is caused by one or more of the Grapevine leafroll-associated viruses (GLRaVs). GLD’s symptoms are expected to be evident in indicator cultivars, regardless of the GLRaV(s) involved. In the present study, disease incidence (I) and severity (S), symptoms before veraison (Sy < V), a disease severity index (DSI) and an earliness index (EI) (2013–2022) were recorded in order to examine the factors affecting the evolution of GLD in Pinot noir graft inoculated with scions infected with GLRaV-3 that, in origin, showed a diversity of GLD symptoms. Strong correlations between I and S (r = 0.94) and between Sy < V and EI (r = 0.94) were observed; early symptoms proved good predictors of incidence and severity after veraison and of yield and sugar content of the must. The environmental conditions and time after infection did not modify the wide range of symptoms (I: 0–81.5%; S: 0.1–4) that corresponded with the variation in losses (<0–88% for yield and <0–24% for sugar content). With all other factors being constant, the significant differences between plants were mainly due to the GLRaVs present. Plants infected with some GLRaV-3 isolates always had mild symptoms or remained asymptomatic 10 years after grafting but remained a source of infection for GLRaV vectors.
PB MDPI
YR 2023
FD 2023
LK https://hdl.handle.net/10347/38956
UL https://hdl.handle.net/10347/38956
LA eng
NO Cabaleiro, C., Pesqueira, A. M., & García-Berrios, J. J. (2023). Assessment of Symptoms of Grapevine Leafroll Disease and Relationship with Yield and Quality of Pinot Noir Grape Must in a 10-Year Study Period. Plants (Basel), 12(11), 1-17. https://doi.org/10.3390/plants12112127
NO This research was partially supported by several research projects: INIA (RTA2008-00078-C03-03); Consellería de Cultura, Educación e Orden, Xunta de Galicia, Consolidación e estructuración de unidades de investigación competitivas (GPC) (CN 2012/321); the Vicerrectorado del Campus de Lugo and Diputación de Lugo contributed to the maintenance of the experimental vineyard when no other funding was available.
DS Minerva
RD 24 abr 2026