Articles
PHENOLOGY AND MANAGEMENT PRACTICES OF ‘FLORDAPRINCE’ PEACH
Article number
409_2
Pages
19 – 24
Language
Abstract
Phenological, fruit thinning and trunk girdling studies were conducted on low chill ‘Flordaprince’ peach trees in subtropical Australia.
The competing spring shoot growth was reduced significantly in trees dwarfed with paclobutrazol, and an earlier and greater crop of larger, better quality fruits was produced, compared with trees invigorated with nitrogenous fertiliser.
The dwarfed trees had a reduced spring, but increased autumn, flush of root growth.
Blossom thinning, or stub pruning the shoots plus paclobutrazol treatment, gave slightly earlier and larger fruits than fruit thinning, and especially unthinned control.
Girdling pre-stone hardening (SH) gave the greatest increase in fruit size during stage 2 of fruit development, and hence more larger fruits.
The pre- and post- SH girdling treatments gave progressively earlier and shorter main harvest period.
Starch reserves were greatest in the roots, followed by the trunk, shoots and leaves.
Reserves were lowest during the stone hardening and fruit maturation stages, but rose after the end of shoot extension growth to reach a peak again by leaf fall and winter.
N, P and K concentrations in the leaves decreased through the season, while Ca and Mg increased.
There were significantly lower K, and higher Ca and Mg levels in paclobutrazol treated trees.
The competing spring shoot growth was reduced significantly in trees dwarfed with paclobutrazol, and an earlier and greater crop of larger, better quality fruits was produced, compared with trees invigorated with nitrogenous fertiliser.
The dwarfed trees had a reduced spring, but increased autumn, flush of root growth.
Blossom thinning, or stub pruning the shoots plus paclobutrazol treatment, gave slightly earlier and larger fruits than fruit thinning, and especially unthinned control.
Girdling pre-stone hardening (SH) gave the greatest increase in fruit size during stage 2 of fruit development, and hence more larger fruits.
The pre- and post- SH girdling treatments gave progressively earlier and shorter main harvest period.
Starch reserves were greatest in the roots, followed by the trunk, shoots and leaves.
Reserves were lowest during the stone hardening and fruit maturation stages, but rose after the end of shoot extension growth to reach a peak again by leaf fall and winter.
N, P and K concentrations in the leaves decreased through the season, while Ca and Mg increased.
There were significantly lower K, and higher Ca and Mg levels in paclobutrazol treated trees.
Publication
Authors
P. Allan, T.S. Rasmussen, A.P. George, R.J. Nissen
Keywords
Online Articles (32)