Volume 49 Number 2 Article 13
Year 1995 Month 4
Title: Relationship Between Chromaticity Measurements and Visual Ratings of Peach Cultivars
Authors: T.A. Baugher, E.C. Townsend, S. Singha, D.W. Leach and S.P. Walter
Abstract:
A study was conducted to determine the
relationship between sensory color evaluations
of peach [Prunus persica (L.) Batsch] cultivars
and Commission Internationale d'Eclairage
(CIE) L* a* b* color space coordinates and to
compare the fruit color of 36 cultivars.
Fruit
color was visually rated on a 1-10 scale, with 10
representing highly attractive overall color.
Fruit
color also was measured with a portable tristimulus
colorimeter at the mid-point between
the stem and the stylar end on the blushed and
on the nonblushed surfaces.
Nonblushed surface
measurements did not correlate with sensory
panel evaluations.
The hue angle of the blushed
surface was linearly related to panel rating.
The
blushed surface hue angle indicated that the
cultivars 'Harbrite,' 'SaTem,' 'Redhaven' and
'Garnet Beauty' had the most intense red fruit
coloration.
Based on hue angle, a number of
newer peach selections have color superior to
the commercially planted midseason cultivar
'Loring.'
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