Fig. 5

Principle component and correlation analyses. a Phenotypic data of all temperatures and genotypes were subjected to principle component analysis (PCA). b-c Correlation analysis of temperature responses among individual traits or trait groups of all analyzed genotypes (b) or in selected individual accessions (c). Spearmann correlation coefficients were tested for significance and coefficients with P < 0.05 and P < 0.1 are presented in (b) and (c), respectively. Phenotype correlations for all accessions individually are shown in Additional file 18