Multivariate analysis of vineyard peach [Prunus persica (L.) Batsch.] germplasm collection

Abstract

Thirty vineyard peach [Prunus persica (L.) Batsch.] genotypes were studied to determine the overall degree of polymorphism and to detect similarities among genotypes. The variation was observed for traits related to phenology, morphology, yield and fruit quality. Many fruit characteristics that are important to breeders are present in this collection. The majority of important correlations were determined between the characteristics representing fruit size (fruit width, fruit height, fruit weight and stone weight) and between those ones representing fruit quality (fruit attractiveness, taste, flavour and soluble solids content). Cluster and principal component analysis showed a considerable phenotypical diversity in the vineyard peach germplasm. Clustering of genotypes was in accordance with its purpose (fresh consumption or rootstocks production). Parameters with high discriminating values were those related to fruit size and fruit quality.

Multivariate analysis reveals phenotypic diversity of Euscaphis japonica population

“…Leaves were sampled from the middle of the second or third pairs of compound leaves of the annual branches. To minimize environmental effects on all the phenotypes, data were collected across two years (2016–2017) for each sample [28,29].…”

Phenotypic variation of Prunus scoparia germplasm: Implications for breeding

“…Zeinalabedini et al (2008) studied nut, kernel and leaf traits in P. scoparia, P. eleagnifolia, P.hauskenchtii, and P. lycioides and reported that these traits showed significant differences among the species and indicated the possibility of the use of them in distinguishing Prunus germplasm. Previously, PCA has been used to study correlations among tree traits in P. scoparia (KhadiviKhub and Anjam, 2014) and different Prunus species (Ruiz and Egea, 2008;Sorkheh et al, 2009;Nikolic et al, 2010;Khadivi-Khub et al, 2012, 2013Khadivi-Khub and Etemadi-Khah, 2015). PCA can be used to identify patterns in a set of biological data derived from recording several characteristics at a time (Iezzoni and Pritts, 1991).…”

Seed genotypes for harvesting seeds in the production of generative rootstocks for peach cultivars

“…The rootstocks commonly used for peach cultivars worldwide are generative rootstocks, usually peach seedlings (Room 1983;Rubio-Cabetas 2012). The seedlings are produced from seeds that can be obtained (i) from local peach trees growing in the wild, such as the Vineyard peach that grows in most Balkan countries or the Tennessee Natural and Indian Peaches that grow in North America; (ii) cultivated varieties, the fruit of which are typically processed by the food industry, such as the cvs Halford and Lovel that grow in Canada and the USA; and (iii) specifically selected peach seed genotypes, such as Montclar, which is grown in Europe, Siberian C and Harrow Blood, which are grown in Canada, and Rutgers Red Leaf and Nemared, which are grown in the USA (Room 1983, Layne 1987Reighard, Loreti 2008;Nikolić et al 2010).…”