a) Hierarchical cluster analysis of 130 durum wheat accessions according to difference values of 6 agronomic traits in the no nitrogen fertilization relative to the standard nitrogen fertilization. Durum germplasms are classified by the hierarchical clustering (n=3) using ‘UPGMA’ method. b) Principal component analysis (PCA) of 130 durum wheat accessions according to change amounts of 6 agronomic traits. SPAD : SPAD value, FL : flag leaf length GA : grain area, GL : grain length, TGW : thousand grain weight, PC : protein content.
© 2024 Korean J. Breed. Sci.