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Forestry 1997 70(2):151-155; doi:10.1093/forestry/70.2.151
© 1997 by Institute of Chartered Foresters
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The effect of treeshelter height on the early growth of sessile oak (Quercus petraea (Matt.) Liebl.)

G. J. MAYHEAD and I. R. BOOTHMAN

School of Agricultural and Forest Sciences, University of Wales, Bangor Gwynedd, LL57 2UW, Walesb

Sessile oak 1+1 transplants were grown for 4 years in a weed-free environment at 1 x 1 m spacing on a fertile sheltered site. Four experiment treatments were imposed: control with no treeshelter and treeshelters of heights 0.6 m, 1.2 m and 1.8 m. Treatments had no significant effect on tree survival. Taller shelters produced taller, lower diameter trees of increasingly low dry root weight. The root:shoot ratio was 0.675 in control trees but declined to 0.291 in 1.8-m shelters. Trees from 0.6-rn and 1.2-m shelters (mean heights 152 m and 206 m respectively) supported themselves unaided after removal of the stake and treeshelter. The trees from 1.8-m shelters of mean height 234 cm at age four collapsed completely when support was removed.

Received 8 May 1996.
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