Early results of sycamore (Acer pseudoplatanus) provenance trials at farm-forestry sites in England and Wales

Abstract
The early growth of British and continental provenances of sycamore, Acer pseudoplatanus L., was compared in the nursery and in field trials at five farm-forestry sites. There were significant differences between provenances in height and root-collar diameter in the nursery. After four seasons in the field the ranking of provenances for height had changed considerably and differences between provenances were no longer significant summing over sites. Of the four continental provenances, two, from Denmark and Germany, performed better than the British provenances at those sites where they were included. Results are discussed in relation to the selection of improved sycamore planting material for the forest industry.

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