Volume 56 Number 1 Article 5
Year 2002 Month 1
Title: Fruit Weight and Shoot Diameter Relationship in Early Ripening Peaches
Authors: G.W. Porter, W.B. Sherman, T.G. Bechman, and G.W. Krewer
Abstract:
Data were collected in early ripening peach [Prunus persica (L.) Batsch] varieties trained to a vase
system to determine if a relationship exists between fruit weight and shoot diameter.
The experiment
was conducted with 3 varieties at Gainesville, FL with detailed pruning and with 3 other varieties at
Atapulgus, GA with minimum pruning.
All the varieties were similar in fruit development period (FDP)
and fruit size.
The largest shoot diameter was generally found in the upper canopy in all varieties.
There
was no correlation between shoot diameter and fruit weight for 'TropicBeauty', 'TropicSnow' and
'UF2000' at Gainesville under detailed pruning.
There was a significant (p=0.01) correlation for 'Flordacrest'
in the lower (r=0.53) canopy and for 'White Robin' in both the upper (r=0.38) and lower
(r=0.40) canopy at Attapulgus, GA under minimal pruning.
In these situations, large stems were associated with large fruit. 'Delta', grown at Attapulgus with minimal pruning, showed no correlation between shoot diameter and fruit weight, probably because it is male sterile and produced large fruit due
to a reduced crop load.
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