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Fig. 2 | BMC Genomics

Fig. 2

From: Morphological, physiological, and transcriptional responses to low nitrogen stress in Populus deltoides Marsh. clones with contrasting nitrogen use efficiency

Fig. 2

Effects of low N stress on leaf morphology and chlorophyll content of N-efficient (A-1, A-2, and A-3) and N-inefficient (C-1, C-2, and C-3) genotypes. Different letters above the columns indicate significant differences between the groups (p < 0.05). (A) Chlorophyll (a + b) (Chl); (B) Leaf area (LA)

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