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Table 3 Principal component analysis based on ecogeographical data of H. chilense accessions.

From: Genetic structure and ecogeographical adaptation in wild barley (Hordeum chilenseRoemer et Schultes) as revealed by microsatellite markers

Variable Principal Component
  PC1 PC2 PC3
Elevation 0.126 -0.586 0.755
Warmest month -0.445 0.779 0.389
Coldest month -0.568 0.763 0.253
Latitude 0.906 0.327 0.171
Longitude 0.213 0.865 -0.147
Wettest month 0.896 0.181 0.148
Driest month 0.893 0.236 -0.038
Variance (%) 42.9 35.4 12.3