Article Figures & Data
Tables
- Table 1.
Callus growth over washers and area of wood discoloration one year after lag and washer installation using 2 methods of countersinking and not countersinking.
Tree species Type of counter-skinking Callus growth (mm) Wood discoloration (cm2) Red oak drill 8.5 a* 28.3 a chisel 4.1 b 38.6 a none 0.2 c 14.4 b Beech drill 10.2 a 17.6 a chisel 8.8 a 19.4 a none 0.0 b 8.7 b ↵* Means in the same column and species with the same letter are not significantly different (P= 0.05) according to the Student Newman Kuels test.