Figure 4
From: Assessing adaptive requirements and breeding potential of spelt under Mediterranean environment
Principal components analysis of agronomic traits and mineral concentration of 20 lines grown under field conditions. Biplot vectors are trait factor loadings for PC1 and PC2. (a) Agronomic traits of Stem width (SW), Spike compactness (SC), Grain shape (GS), Thousand-kernel weight (TKW), Hull (%), grain yield (GY), Harvest index (HI) (b) Mineral concentration in ppm of Barium (Ba), Boron (B), Calcium (Ca), Iron (Fe), Phosphorus (P), Sodium (Na), Sulphur (S), Zinc (Zn) and Grain protein concentration (GPC). (blue triangle) modern bread wheat (green rectangle) free-threshing spelt (filled cirecle) hulled spelt.
