Volume 54 Number 4 Article 34 Pages: 177-182
Year 2000 Month 10
Title: Nectarine Skin Speckling is Associated with Flesh Soluble Solids Content
Authors: B.L. Topp and W.B. Sherman
Citation
Abstract:
The relationship between skin speckling and flesh soluble solids content (SSC) was investigated for
45 nectarine [Prunus persica (L.) Batsch] genotypes from the University of Florida breeding program.
Skin speckling as measured on firm ripe fruit by count of speckles cm-2 and a 0 to 5 speckle rating was
significantly correlated with SSC (r = +0.72 and +0.78 respectively). There was significant variation
among genotypes for speckle number, speckle rating and SSC with broad sense heritabilities estimated
as 0.67, 0.79 and 0.58 respectively.
The term sugar speckles is commonly used to describe this skin
speckling and accurately reflects the association between the two traits.
The challenge for breeders is to
increase eating quality without adversely affecting fruit appearance.
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