Table 8. Differences in Photosynthetic Parameters between Mesophyll and Veins with Zn-replete treatment

These differences were in response to zinc deficiency stress in soybean leaves (20-nm residue from chemicals and water) compared to Control (340 nm Zn) for six weeks. Three areas of mesophyll and three veins were chosen from every leaf for quantification (n = 4–6 leaves per treatment). Mann-Whitney U test statistics were used for significant differences. The Z value represents standardized value corrected for the presence of ties.

ParameterTissuenMedianMean RankSum of RanksUZP
MoMesophyll181.119.722223551840.683890.49404
Vein181.0617.27778311
ΦpoMesophyll180.767818.16667327156−0.174010.86
Vein180.7678518.83333339
ΨET2oMesophyll180.486317.83333321150−0.363870.72
Vein180.4869519.16667345