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Befall der Fichte ( Picea abies) durch Heterobasidion annosum in Abhängigkeit vom Baumalter
Author(s) -
Rleger S.
Publication year - 1995
Publication title -
european journal of forest pathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.535
H-Index - 49
eISSN - 1439-0329
pISSN - 0300-1237
DOI - 10.1111/j.1439-0329.1995.tb01351.x
Subject(s) - heterobasidion annosum , picea abies , biology , host (biology) , forestry , botany , horticulture , geography , ecology
Summary Infection of Norway spruce (Picca abies) by Heterobasidion annosum in relation to tree age The presence of H. annosum in stems and roots of young Picea abies of different age classes was determined in four heavily infected stands in Southern Germany. The frequency of infected trees increased with age (0% in age class I (I‐10 years), 7,5% in class 2 (11‐20 years), 33,3% in class 3 (21‐30 years)). Only the S‐type was found. An additional investigation of 1‐10‐year‐old trees growing on stumps with H. annosum decay or tightly surrounded by carpophores yielded an infection rate of 20% (mainly S‐type). H. annosum was confined to very small regions in the host tissue in these cases.