RT Journal Article
SR Electronic
T1 Effect Of Trunk Injection Of Flurprimidol And Paclobutrazol On Sprout Growth In Silver Maple
JF Arboriculture & Urban Forestry (AUF)
JO JOA
FD International Society of Arboriculture
SP 233
OP 236
DO 10.48044/jauf.1986.050
VO 12
IS 9
A1 P. Arron Geoffrey
YR 1986
UL http://auf.isa-arbor.com/content/12/9/233.abstract
AB A field study was initiated in 1985 to evaluate the growth retardation capabilities of potential plant growth regulators for silver maple. Twelve-year-old silver maple trees were trimmed and trunk injected with one of two application rates of EL-500 {alpha-(1-methylethyl)-alpha-[4-(tri-fluro-methoxy)phenyl]-5-pyri-midine-methanol} (common name: flurprimidol) and PP 333 {(2RS, 3RS)-1-(4-chlorophenyl)-4, 4-dimethyl-2-(1,2,4-triazol-1-yl)pentan-3-ol} (common name: paclobutrazol). The high (20 g/L and low (4 g/L) application rates of both EL-500 and PP 333 resulted in significantly shorter sprouts than in the two control groups when the sprouts that had formed on single-and multi-stemmed trees were considered collectively in the fall of 1985. Both growth regulators appeared to be more effective in single-rather than multi-stemmed trees and this may be related to an uneven distribution of chemical between the two or three stems of the latter.