75754 20200117221613.0 doi 10.3390/f9110685 sideral 108322 ART-2018-108322 eng Silva Castro, Iosody Application of bioactive coatings based on chitosan and propolis for Pinus spp. protection against Fusarium circinatum 2018 Access copy available to the general public Unrestricted Pine pitch canker (PPC) is a major threat to pine forests worldwide because of the extensive tree deaths, reduced growth, and degradation of timber quality caused by it. Furthermore, the aggressive fungus responsible for this disease (Fusarium circinatum) can also infect pine seeds, causing damping-off in young seedlings. This study proposes an approach based on coating treatments consisting of natural products to ensure seed protection. Seeds from two pine species (the most sensitive to this disease, Pinus radiata D. Don, and a more resistant one, Pinus sylvestris L.) were coated with single and binary mixtures of low and medium molecular weight chitosan and/or ethanolic-propolis extract. The germination rate, pre- and post-emergence mortality, total phenolic content, and radical scavenging 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 displaying a 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 of P. radiata seeds. The proposed treatments show promise for the protection of P. sylvestris seedlings against PPC. info:eu-repo/grantAgreement/ES/MINECO-FEDER/AGL2015-69370-R info:eu-repo/grantAgreement/ES/DGA/ESF/COMPETE info:eu-repo/grantAgreement/EUR/COST/FP1406-PINESTRENGTH info:eu-repo/semantics/openAccess by http://creativecommons.org/licenses/by/3.0/es/ 2.116 2018 FORESTRY 17 / 67 = 0.254 2018 Q2 T1 0.734 2018 Forestry 2018 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Diez, Julio Javier (orcid)0000-0003-2713-2786 Martín Ramos, Pablo Universidad de Zaragoza Pinto, Glória Alves, Artur Martín Gil, Jesús Martín García, Jorge 5011 500 Universidad de Zaragoza Dpto. CC.Agrar.y Medio Natural Area Ingeniería Agroforestal 9, 11 (2018), 685 [14 pp.] Forests Forests 1999-4907 1954255 http://zaguan.unizar.es/record/75754/files/texto_completo.pdf Versión publicada 106064 http://zaguan.unizar.es/record/75754/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:75754 articulos driver 2020-01-17-21:49:43 ARTICLE