Articles
EFFECTS OF PACLOBUTRAZOL ON GROWTH AND YIELD OF LOW CHILL PEACHES IN SUBTROPICAL AUSTRALIA
Article number
409_11
Pages
109 – 116
Language
Abstract
The growth retardant, paclobutrazol, applied as a soil and collar drench in the autumn was evaluated for its effects on subsequent growth and yield of the low chill peach cultivar Flordaprince in the first year after treatment.
Paclobutrazol reduced shoot extension appreciably by stonehardening (57% reduction) and at harvest (47.6% reduction) and increased fruit size (12.7%), yield (22.1%) and yield per unit canopy volume (59.1%). The improvement in fruit size appears to be due to a reduction in competition between vegetative and reproductive growth.
Both leaf K levels and trunk starch levels at stone-hardening were negatively linearly correlated with yield per unit canopy volume (r=0.84; 0.64, respectively, P < 0.05).
Paclobutrazol reduced shoot extension appreciably by stonehardening (57% reduction) and at harvest (47.6% reduction) and increased fruit size (12.7%), yield (22.1%) and yield per unit canopy volume (59.1%). The improvement in fruit size appears to be due to a reduction in competition between vegetative and reproductive growth.
Both leaf K levels and trunk starch levels at stone-hardening were negatively linearly correlated with yield per unit canopy volume (r=0.84; 0.64, respectively, P < 0.05).
Publication
Authors
Alan P. George, Robert J. Nissen, Jodie A. Campbell, T. Rasmussen, P. Allan
Keywords
Online Articles (32)