RT info:eu-repo/semantics/article T1 Application of Bioactive Coatings Based on Chitosan and Propolis for Pinus spp. Protection against Fusarium circinatum A1 Silva Castro, Iosody A1 Díez Casero, Julio Javier A1 Martín Ramos, Pablo A1 Pinto, Gloria A1 Alves, Artur A1 Martín Gil, Jesús A1 Martín García, Jorge K1 Antifungal K1 Antifúngicos K1 Antioxidants K1 Antioxidantes K1 Seed protection K1 Protección de semillas K1 Total phenolic content K1 Contenido fenólico total K1 3106 Ciencia Forestal AB Pine pitch canker (PPC) is a major threat to pine forests worldwide because of the extensivetree deaths, reduced growth, and degradation of timber quality caused by it. Furthermore, the aggressivefungus responsible for this disease (Fusarium circinatum) can also infect pine seeds, causing damping-offin young seedlings. This study proposes an approach based on coating treatments consisting ofnatural products to ensure seed protection. Seeds from two pine species (the most sensitive to thisdisease, Pinus radiata D. Don, and a more resistant one, Pinus sylvestris L.) were coated with singleand binary mixtures of low and medium molecular weight chitosan and/or ethanolic-propolisextract. The germination rate, pre- and post-emergence mortality, total phenolic content, and radicalscavenging activity were assessed. All treatments, and especially the one based on chitosan oligomers,had a beneficial impact on P. sylvestris seedlings, significantly enhancing survival rates and displayinga positive influence on the total phenolic content and on the seedlings’ radical scavenging activity.Conversely, non-significant negative effects on germination percentages were observed in the case ofP. radiata seeds. The proposed treatments show promise for the protection of P. sylvestris seedlingsagainst PPC. PB MDPI SN 1999-4907 YR 2018 FD 2018 LK http://uvadoc.uva.es/handle/10324/40824 UL http://uvadoc.uva.es/handle/10324/40824 LA eng NO Forests, 2018, vol. 9, n. 11. 14 p. NO Producción Científica DS UVaDOC RD 19-may-2024