Genetic correlations between accumulated plant biomass and WUE (A), and mean plant transpiration and WUE (B) for an apple core collection.

<p>The correlations between traits were evaluated using the bootstrap resampling method. Regression lines were presented for significant correlations. Each point represents the genetic value for one genotype.</p

Broad-sense heritability (A) and genetic coefficient of variation (CV) (B) for the genetic values of morphological and physiological traits for an apple core collection.

<p>For each trait, the number of the model selected according to the Bayesian Information Criterion (BIC) minimization is presented at the top of heritability bars. Refer to <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0145540#pone.0145540.t001" target="_blank">Table 1</a> for traits abbreviation and to <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0145540#pone.0145540.s001" target="_blank">S1 Table</a> for model details.</p

Relationships between measured and estimated whole-plant leaf area (A) and plant biomass (B) at the end of the experiment.

<p>Measured plant biomass was obtained after weighing all the plants of the collection. Measured plant leaf area was obtained after measuring the leaf area for all the leaves for two replicates for each genotype. Estimated values were determined using non-destructive phenotyping technologies based on plant imaging. Each point represents one plant. Dashed lines indicate the 1:1 slope and the straight lines represent the regression line between measured and estimated values.</p

Relationships between plant transpiration (A), plant leaf area at the end of the experiment (B) and leaf transpiration (C) with the Y-axis representing residuals of the relationship between accumulated plant biomass and WUE in Fig 3A.

<p>Regression lines were presented for significant correlations. Each point represents the genetic value for one genotype.</p