Fig. 3From: Changes in growth and soil microbial communities in reciprocal grafting clones between Populus deltoides males and females exposed to water deficit conditionsNet photosynthetic rates (Anet), stomatal conductance (gs) and leaf nitrogen (N) in four graft clones under well-watered and water deficit. Values of different letters represent significant differences (P < 0.05) in different graft clones. Error bars SE (n = 5 individuals)Back to article page