Color Shade Heritability of Peach Flesh

Abstract

Nowadays, despite of being a typically temperate fruit crop, peach is found in subtropical and even tropical altitude zones, due to breeding efforts. Genetic knowledge and phenotypic and environmental parameters directly or indirectly influence the characters of economic importance in peach, and they are of great importance for breeding programs orientation. The aim of this study was to estimate heritability of a color shade character of peach flesh, measured by the Hue angle, chroma and lightness to evaluate its distribution in the populations, testing the possible existence of maternal effect. Results showed that parameters related to color shade of peach flesh have a medium heritability. Parents selection based on phenotype allows a medium genetic improvement for the mentioned character. This heritability is predominantly additive, without maternal effect. The Hue angle is the correct parameter to be used to classify and study yellow-flesh peaches and nectarines in relation to their color shade. However, the multivariate analysis of principal components, using the three parameters Hue angle, chroma and lightness, is an alternative of high accuracy.

Liquid whole egg fractionation: Effect of centrifugation on physicochemical attributes of quality

“…The calculated hue angle was 72.74 ± 0.62° while chroma obtained a value of 59.67 ± 1.15. These values correspond with the characteristic bright color of orangey whole eggs (Dini et al., 2019). As aforementioned, this color is attributed to fat‐soluble carotenoids presented in egg yolk.…”

“…Same conditions that gave the highest values for lightness. The decrease range of values represented for hue angle means an orange to red tendency (Dini et al., 2019). Subsequently, when RCF and time increase, plasma tend to be more reddish and less bright.…”

“…The a * coordinate expresses the degree of variation between red (+ a *) and green (− a *) with positive and negative values, respectively. The coordinate b * expresses the degree of variation between yellow (+ b *) and blue (− b *) with positive and negative values, respectively (Dini et al., 2019).…”

“…Chroma is the color saturation index while hue is the color angle and expresses the color tones (Dini et al., 2019). Hue values are stepped counterclockwise on a 360° chromatic circle.…”

New β-Carotene-Chitooligosaccharides Complexes for Food Fortification: Stability Study

“…As can be seen, the colour parameters of CAR-CHIOS complexes are different and depend on the methods of complexes preparation. As follows from the ratio a */ b * and Hue angle, the colours of LF5 and S6 complexes are shifted to orange-red-orange tones, and the colour of KD3 is more orange-yellow [ 37 ]. During four months of storage the changes of colour parameters of the complexes are significant.…”