Fig. 1From: Effects of biogenic silver and iron nanoparticles on soybean seedlings (Glycine max)Effects of AgNPs and FeNPs on leaf gas exchange parameters of soybean seedlings. A Net photosynthesis; B Stomatal conductance; C Intrinsic water use efficiency. The bars are means ± standard deviation (n = 10). * indicates significant difference between seedlings exposed to the nanoparticles and control seedlings (p < 0.05)Back to article page