|
Birch
Table 1 Provenance trials -basic data
|
TRIAL
|
PLANTING DATE
|
GRID REF
|
SITE TYPE &
ELEVATION
|
No OF SOURCES
|
ASSESSMENTS
|
COMMENTS
|
|
Dunkeld 21
Perthshire
|
1997
|
NN981481
|
Stony gleyed upland brown earth 280 m
|
41
|
Height years 1,3,6,10
Flushing year 3
Form years 3,4
|
Testing site with many seed sources showing poor growth.
|
|
Moray 64
Elgin, Moray
|
1998
|
NJ286566
|
Brown earth
127 m
|
45
|
Height years 1,3,6,10
Flushing year3
|
Lowland former arable site.
|
|
Glen Trool 33
Galloway
|
1999
|
NX361662
|
Brown earth
65 m
|
41
|
Height 2,6
Form years 2
|
Trial was consolidated from 3 to 2 replicates
|
|
Kintyre 20
Argyll
|
2001
|
NR775770
|
Gleyed upland brown earth 26m
|
41
|
Height years 0,1,2,6
|
Damp western site with gleyed soils.
|
|
Ballynoe Cork
Ireland
|
2001
|
|
?
|
41
|
Height years 3,6
|
|
|
Thetford 312
Norfolk
|
2003
|
TL791818
|
Sandy
brown earth 35 m
|
35
|
Height years 0,1,3
Flushing year 5
Senescence year 4
|
Excellent early growth, largely weed-free
|
|
Llandovery 41
Carmarthen
|
2003
|
SN820530
|
Peaty soils
430 m
|
35
|
Height years 3
|
Very exposed site.Plots on peaty soil abandoned
|
|
Llandovery 42
Carmarthen
|
2003
|
SN568097
|
Brown earth
122 m
|
33
|
Height years 2,3
|
Former grazing land
|
|
Drummond 34
Perthshire
|
2003
|
NN705435
|
Upland brown earth and brown gley
220m
|
33
|
Height years 2,3
Flushing year 5
Senescence year 4
|
Missing French and one Welsh seed source. A fertile site, damp in places. Bracken in SW corner damaged 10 plots.
|
|
Dornoch 11
Easter Ross
|
2003
|
NH773931
|
Upland brown earth 140 m
|
16
|
Height years 1,3
|
Felled pine stand
|
|
|
|
|
|
|
|
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