Differences between provenances ofpinus contort avar.latifoliain resistance to attack bygremmeniella abietina
作者:
Jon Dietrichson,
Halvor Solheim,
期刊:
Scandinavian Journal of Forest Research
(Taylor Available online 1987)
卷期:
Volume 2,
issue 1-4
页码: 273-279
ISSN:0282-7581
年代: 1987
DOI:10.1080/02827588709382464
出版商: Taylor & Francis Group
关键词: Gremmeniella abietina;Pinus contorta;provenances
数据来源: Taylor
摘要:
A provenance trial of lodgepole pine(Pinus contortavar.latifolia)planted in 1969 at Matrand, Eidskog, Norway was apparently attacked byGremmeniella abietinain 1984/85. In late autumn the damage was recorded separately on the lower and upper halves of the trees. The material ranged in latitude from 40.25°N to 56.28°N, and in altitude from 2 850 to 450 m a.s.l., highest in interior western United States and lowest in western Canada. The most heavily attacked sources were those from southern latitudes and from high elevations. The attack frequency changed gradually from south to north. In order to avoid attack byG. abietina, only well‐adapted provenances should be used.
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