Autor(es): Fernandes, Luís ; Paiva, Diana ; Roxo, Ivo ; Fernandes, Ana Rita ; Ribeiro, Dina ; Ribeiro, Henrique ; Portugal, António
Data: 2023
Identificador Persistente: http://hdl.handle.net/10400.5/30296
Origem: Repositório da Universidade de Lisboa
Assunto(s): pine pitch canker prevention; nurseries; irrigation water; irrigation water quality assessment
Fusarium circinatum is one of the many threats to forests and Pinus nurseries all over the world, being classified as a quarantine organism by several organizations and governing bodies, such as the European and Mediterranean Plant Protection Organization (EPPO) and the European Union (EU), with associated phytosanitary measures in place to prevent its spread through the various means of dispersal. One such means of dispersal is the water used for irrigation in nurseries, which can contain fungal propagules. Three different treatments, namely, Desogerme, Intra Hydrocare and sodium hypochlorite (NaClO), were tested for their efficacy in eliminating F. circinatum spores in water at several concentrations. Those that showed 100% disinfection rates were selected for further assays regarding seed germination and water quality impact. From these studies, Desogerme 1% and Intra Hydrocare 4% were then selected for large-scale seed germination and plant certification assays in nurseries, where they showed promising results in regard to the prevention of infections in nurseries, and in this way, contribute to the efforts of mitigating this disease.
