Volume 45 Number 2 Article 13
Year 1991 Month 4
Title: Color Evaluations off Delicious Strains
Authors: R.M. Crassweller, H.L. Braun, T.A. Baugher, G.M. Greene II and R.A. Hollendar
Abstract:
Fruit samples from commercial apple orchards
were collected at 145 to 150 days after full
bloom in 1985 through 1987. Color measure
ments were performed on each of 10 fruit at 8
points on the side circumference of each apple
using a HunterLab D25 Optical Sensor.
Results
were recorded as lightness (L), and hue angle
(Ø). Strains were compared to three standards:
'Redchief,' 'Sturdeespur' and 'Starkrimson.' Significant correlations were found between Ø and
L in all orchards as well as between L values
and consumer determinations of overall accept
ability and perceived flavor.
At all sites, 'Stark
rimson' and 'Redspur' consistently had higher L
values than any of the other strains indicating
lighter colored fruit at harvest.
Other strains
that appeared to be lighter colored during the
harvest period chosen include 'Wellspur,' and
'Redprince.' Within any one year there were
significant differences between strains within
an orchard.
There was more variability within
strains than among strains within orchards and
years.
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