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Forestry 1988 61(2):149-163; doi:10.1093/forestry/61.2.149
© 1988 by Institute of Chartered Foresters
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Comparative Performance of Containerised and Bare-root Sitka Spruce and Lodgepole Pine Seedlings in Upland Britain

W. L. MASON and P. BIGGIN *

Forestry Commission, Northern Research Station, Roslin, Lothian, EH25 9SY Scotland

Seedlings of Sitka spruce and Lodgepole pine were grown in five different container types; Ontario tubes, Kopparfors multipots, Finn peat pots, Japanese paperpots and Spencer-Lemaire root-trainers. They were planted in forest experiments in 1972/3 when 8-14 weeks old and their subsequent performance compared with 2 years-old bare-rooted transplants.

After 2–3 years' growth, tubed seedlings proved consistently poorer than all other treatments for both height and survival. Finn peat pots were marginally the best of the other containers tested. Containerised plants generally showed poorer survival and substantially less height growth than transplants, with differences being greater for Sitka spruce than for Lodgepole pine. For both species well-handled transplants appear the most appropriate plant type for use in upland Britain.

Implications for the future role of containerised seedlings in upland forestry in Britain are considered. The benefits of container systems may be greatest in the production of seedlings of ‘sensitive’ species or of high genetic quality.


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