RT Journal Article
SR Electronic
T1 Embedded Wire in Tree Roots:Implications for Tree Growth and Root Function
JF Arboriculture & Urban Forestry (AUF)
FD International Society of Arboriculture
SP 115
OP 123
DO 10.48044/jauf.1992.027
VO 18
IS 3
A1 Carol Goodwin
A1 Glen Lumis
YR 1992
UL http://auf.isa-arbor.com/content/18/3/115.abstract
AB Experiments with two-year-old seedlings of Fraxinus pennsylvanica and Celtis occidentalis and two year-old whips of Populus angulata x plantierensis were designed to study the effect of root girdling by wire. Overall growth, foliar nutrient content, xylem anatomy, root carbohydrate content, xylem water potential, and rate of transpiration were studied six months after girdling. Neither greenhouse grown seedlings nor field grown whips subjected to root girdling by wire grew less than those without girdling wire. Full girdling significantly reduced foliage dry weight in Fraxinus and the rate of transpiration in Fraxinus and Celtis. A gradient of water potential was observed in the xylem across the wire girdle in seedlings of these two species. The amount of carbohydrate present in root tissue and its distribution in relation to the wire was slightly influenced by girdling in all three species.