Understanding intra-specific variation in leaf functional traits is one of the key requirements for the evaluation of species adaptive capacity to ongoing climate change, as well as for designing long-term breeding and conservation strategies. Hence, data of 19 functional traits describing plant physiology, antioxidant properties, anatomy and morphology were determined on 1-year-old seedlings of wild cherry ( Prunus avium L.) half-sib lines. The variability within and among half-sib lines, as well as the estimation of multi-trait association, were examined using analysis of variance (ANOVA) followed by Tukey's honestly significant difference test and multivariate analyses: principal compo-nent analysis (PCA), canonical discriminant analysis (CDA) and stepwise discriminant analysis (SDA). Pearson's cor-relation coefficient was used to evaluate linear correlation between the study parameters. The results of the ANOVA showed the presence of statistically significant differences ( P < 0.01) among half-sib lines for all study traits. The dif-ferences within half-sib lines, observed through the contri-bution of the examined sources of variation to the total vari-ance (％), had higher impact on total variation in the majority of the examined traits. Pearson's correlation analysis and PCA showed strong relationships between gas exchange in plants and leaf size and stomatal density, as well as between leaf biomass accumulation, intercellular CO 2 concentration and parameters related to antioxidant capacity of plants. Likewise, the results of SDA indicate that transpiration and stomatal conductance contributed to the largest extent, to the discrimination of the wild cherry half-sib lines. In addition, PCA and CDA showed separation of the wild cherry half-sib lines along the first principal component and first canonical variable with regards to humidity of their original sites. Mul-tiple adaptive differences between the wild cherry half-sib lines indicate high potential of the species to adapt rapidly to climate change. The existence of substantial genetic vari-ability among the wild cherry half-sib lines highlights their potential as genetic resources for reforestation purposes and breeding programmes.

Sr?an Stojni?;Branislav Kova?evi?;Marko Kebert;Verica Vasi?;Vanja Vuksanovi?;Branislav Trudi?;Sa?a Orlovi?

Institute of Lowland Forestry and Environment,University of Novi Sad,Antona ?ehova 13d,Novi Sad 21000,Serbia;Faculty of Agriculture,University of Novi Sad,Trg Dositeja Obradovi?a 8,Novi Sad 21000,Serbia;Food and Agriculture Organization of the United Nations,Viale delle Terme di Caracalla,00153 Rome,Italy

林业研究（英文版）

[1]Sr?an Stojni?;Branislav Kova?evi?;Marko Kebert;Verica Vasi?;Vanja Vuksanovi?;Branislav Trudi?;Sa?a Orlovi?-.Genetic differentiation in functional traits among wild cherry ( Prunus avium L.) half-sib lines)[J].林业研究（英文版）,2022(03):991-1003

cherry

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