Fig. 1From: Genome-wide transcriptional adaptation to salt stress in PopulusPlant phenotypic responses during repeated NaCl treatments in Populus. a Whole plants responses to salt stress. Photos were taken 1 h after each NaCl treatment. Scale bar, 20 cm. b Leaf phenotype during salt stress. Photos were taken 24 h after each NaCl treatment. Scale bar, 20 cmBack to article page