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Distribution of Heterobasidion annosum intersterility groups in Poland

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Specimens of Heterobasidion annosum were collected in 104 different stands in 43 regions of Poland. Pure cultures originating from 439 collections were identified in mating tests. Three intersterility groups, P, S and F, of H. annosum were found. Their occurrence in Poland was connected with the natural distribution of the main hosts: Pinus sylvestris, Picea abies and Abies alba, respectively. P was the most common intersterility group of H. annosum in Poland, causing mortality in Scots pine plantations and root rot in older stands. It was also isolated from Betula pendula, P. abies, Larix decidua, Fagus sylvatica and Carpinus betulus. The S group was present in the southern and north-eastern parts of the country, causing root and butt rot mostly in spruce stands. The F group occurred in the south of Poland, in the mountains, highlands and lowland up to the northern border of the distribution of fir. It was found only on stumps, old dead trees and logs. There was no evidence of damage caused by the F group on A. alba trees.

Document Type: Research Article


Affiliations: 1: Department of Forest Pathology, August Cieszkowski Agricultural University, ul. Wojska Polskiego 71c, 60-625 Poznań, Poland. (for correspondence);, Email: 2: Department of Phytopathology, Institute of Dendrology, Polish Academy of Sciences, ul. Parkowa 5, 62-035 Kórnik, Poland

Publication date: 2003-04-01

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