Fig. 1From: Effects of nanoscale zerovalent cobalt on growth and photosynthetic parameters of soybean Glycine max (L.) Merr. DT26 at different stagesEffects of NZVC on the content of (a) chlorophyll a, (b) chlorophyll b and (c) carotenoid pigments of DT26 soybean leaves at different stages. Values are means ± standard deviation, * Indicate significant difference at p < 0.05, respectively, between treatments and control; V1, V3, V5 and R1 were first, third, fifth trifoliate and begin at flowering stages, respectively; control - no NZVC treatment, using distilled water; CoVN - 1, 2 and CoUSA - 1, 2: Seeds were treated with 0.17 and 16.7 mg/kg seeds of Vietnamese and USA NZVCs, respectivelyBack to article page