Fig. 2From: Evaluation of nano-silicon efficiency on compatible solutes and nutrient status of Damask rose affected by in vitro simulated drought stressInteraction between drought stress × two Damask genotypes on leaf chlorophyll index a and SiO2-NPs × two Damask genotypes on chlorophyll index b. Different letters indicate significant differences according to the LSD test at P < 0.05Back to article page