Susceptibility to Phytophthora cinnamomi of six holm oak (Quercus ilex) provenances: are results under controlled vs. natural conditions consistent?
نویسندگان
چکیده
Aim of study: Quercus forests are being affected by severe decline and mortality. The oak is associated with the soilborne pathogen Phytophthora cinnamomi (Pc), among others. This work aims to determine if ilex growing in Pc-infested soils show mortality differences according their provenance field. It also evaluates whether most tolerant provenances those greatest constitutive chemical defences.
 Area Acorns from six Spanish National Parks natural presence Q. were collected for sowing greenhouse later be planted on naturally infested Pc surroundings Plasencia, western Spain.
 Materials methods: Seedlings four field plots located two areas decline: 153, 156, 157 155 plants plot I, II, III IV, respectively. infection was confirmed before installation during experiment. Symptoms, regrowth, development recorded years.
 Main results: There a high (56.0-80.5%) provenances. coincided identified under conditions previous test. Provenances higher condensed tannins better tolerate both conditions. In southern provenances, some families tolerance and, therefore, candidates use reforestation programs infected Pc, identified.
 Research highlights: restoration Pc-affected would possible through plant material defences, more pathogen.
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ژورنال
عنوان ژورنال: Forest Systems
سال: 2022
ISSN: ['2171-9845', '2171-5068']
DOI: https://doi.org/10.5424/fs/2022312-17977