RT Journal Article SR Electronic T1 Survival and Growth of Transplanted Large- and Small-Caliper Red Oaks JF Arboriculture & Urban Forestry (AUF) JO JOA FD International Society of Arboriculture SP 162 OP 169 DO 10.48044/jauf.2000.019 VO 26 IS 3 A1 Struve, Daniel K. A1 Burchfield, Laura A1 Maupin, Cathy YR 2000 UL http://auf.isa-arbor.com/content/26/3/162.abstract AB Red oak (Quercus rubra L.) of 2 caliper sizes, 8.4 and 3.6 cm (3.3 and 1.4 in.), and 2 vigor classes (high and low) within the small-caliper trees, were transplanted to compare growth and establishment over a 4-year period. Possible confounding factors such as pre-transplant vigor, genetics, relative root-ball to backfill volume, and relative canopy to root-ball volume were controlled to determine whether small-caliper trees establish more rapidly than large-caliper trees. Large-caliper trees had high mortality, 58%, while no small-caliper trees died. Based on trunk caliper and height growth after transplanting, surviving large-caliper trees established faster than small-caliper trees—demonstrating that transplanted large-caliper red oaks can establish as rapidly as small-caliper red oaks.