Effects of irrigation, fertilization and drought on the occurrence of Lophodermium piceae in Picea abies needles

Effects of irrigation, drought and fertilization on the frequency of the fungal endophyte Lophodermium piceae in green needles was assessed in a 30-year-old experimental stand of Picea abies in southern Sweden. Frequencies of needles with L. piceae were lower in irrigation and ammonium sulphate fert...

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Bibliographic Details
Published in:Scandinavian journal of forest research 1999, Vol.14 (2), p.121-126
Main Authors: Lehtijaervi, A, Barklund, P. (SLU, Uppsala (Sweden). Inst. foer Skoglig Mykologi och Patologi)
Format: Article
Language:English
Subjects:
APLICACION DE ABONOS
APTITUD COLONIZADORA
APTITUDE A COLONISER
AZOTE
COLONIZING ABILITY
DROUGHT
ENDOFITAS
ENDOPHYTE
ENDOPHYTES
ENFERMEDADES FUNGOSAS
FERTILISATION
FERTILIZER APPLICATION
FUNGAL DISEASES
IRRIGATION
LOPHODERMIUM
MALADIE FONGIQUE
NITROGEN
NITROGENO
PICEA ABIES
RIEGO
SECHERESSE
SEQUIA
SUECIA
SUEDE
SWEDEN
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Summary:Effects of irrigation, drought and fertilization on the frequency of the fungal endophyte Lophodermium piceae in green needles was assessed in a 30-year-old experimental stand of Picea abies in southern Sweden. Frequencies of needles with L. piceae were lower in irrigation and ammonium sulphate fertilization treatments than in the control. Drought treatment frequencies were similar to the control. Needles were susceptible to colonization for at least 3 years; colonization increased with needle age. The results indicate that the increased availability of water to the root system as well as ammonium sulphate fertilization indirectly delays colonization of needles by L. piceae.
ISSN:0282-7581
1651-1891
DOI:10.1080/02827589950152845