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Forestry 1971 44(1):43-65; doi:10.1093/forestry/44.1.43
© 1971 by Institute of Chartered Foresters
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EDITORIAL

Tubed Seedling Research and Development in Britain

ALAN MOSS, C.D., Ph.D., R.P.F.

Consulting Forester, Kelowna, British Columbia

In Britain basal sweep or bowing is prevalent in the South Coastal provenances of Pinus contorta which have been planted extensively. In Forestry Commission provenance experiments at Wykeham (Yorkshire), Achnashellach and Millbuie (Scotland) the provenances which have grown fastest up to the age of about 30 years have also suffered most from windblow and from basal sweep, which are all interrelated. The high growth-rates of the South Coastal provenances do not compensate for the financial loss incurred by windfall and the low value of curved timber. Experience in British Columbia suggests that the increment of these provenances will decline more rapidly than that of some slower growing provenances which are also less affected by wind, and therefore more suitable for Britain.

Slower growing provenances which are little affected by wind are able ultimately to yield a greater and more valuable increment.


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