Estimating apple diameter from fruit mass measurements to time thinning sprays

The relationship between fruit mass and fruit diameter for apple fruit 2 to 26 mm (0.08 to 1.04 inches) in diameter was evaluated for two cultivars sampled from several orchards for three years. A single regression model was appropriate for all combinations of year, cultivar, and orchard. The model...

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Bibliographic Details
Published in:HortTechnology (Alexandria, Va.) Va.), 1999, Vol.9 (1), p.109-113
Main Author: Marini, R.P
Format: Article
Language:English
Subjects:
calibration
cultivars
diameter
estimation
fruits
Malus domestica
mathematical models
orchards
size
thinning
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Summary:The relationship between fruit mass and fruit diameter for apple fruit 2 to 26 mm (0.08 to 1.04 inches) in diameter was evaluated for two cultivars sampled from several orchards for three years. A single regression model was appropriate for all combinations of year, cultivar, and orchard. The model was used to develop a chart to quickly estimate fruit diameter from fruit mass. These fruit diameter estimates can be used by commercial fruit growers to time chemical thinner sprays.
ISSN:1063-0198
1943-7714
DOI:10.21273/horttech.9.1.109