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Phenotypic diversity and relationships of fruit quality traits in peach and nectarine [Prunus persica (L.) Batsch] breeding progenies

AuthorsCantín Mardones, Celia M. ; Gogorcena Aoiz, Yolanda ; Moreno Sánchez, María Ángeles
KeywordsAborting fruit
Fruit shape
Principal component analysis
Issue Date1-Jan-2010
CitationCantín CM, Gogorcena Y, Moreno MA. Phenotypic diversity and relationships of fruit quality traits in peach and nectarine [Prunus persica (L.) Batsch] breeding progenies. Euphytica 171(2): 211-226 (2010).
AbstractAgronomic and fruit quality traits were evaluated and compared for three consecutive years on 1,111 seedlings coming from 15 peach and nectarine breeding crosses, grown under a Mediterranean climate. Significant differences among and within the different progenies were found for most of the traits analyzed. The breeding population segregated for several Mendelian characters such as peach or nectarine fruit, round or flat fruit, yellow or white flesh and freestone or clingstone. In addition, aborting fruit and flat fruit trees were found in our progeny, and our data seem to support multi-allelic control of both flat shape and aborting fruit. The variation within the progenies of some traits such as blooming and harvesting date, yield, fruit weight and SSC was continuous, suggesting a polygenic inheritance. Relationships between qualitative pomological traits and these agronomic and fruit quality parameters were also found. Valuable correlations among agronomic and fruit quality parameters were found, although coefficients of variation depending on the progeny should be considered. In addition, principal component analysis (PCA) revealed several relationships among quality traits in the evaluated progenies. Based on this evaluation, 26 outstanding genotypes were pre-selected from the initial breeding population for further studies.
DescriptionThe definitive version is available at: http://www.springerlink.com/content/102881/
Publisher version (URL)http://dx.doi.org/10.1007/s10681-009-0023-4
Appears in Collections:(EEAD) Artículos
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