Aboveground biomass
The average aboveground biomass of the F1 plants and
their hybrid female parent, wild soybean, was not significantly
different, 85.35 g versus 82.28 g, respectively. In contrast, the
average aboveground biomass of GM plants was significantly higher than
that of F1 and wild soybean (Fig. 2).
The aboveground biomass of the F2 population and GM
soybean was significantly higher than that of wild soybean, and there
were no significant differences between the F2population and GM soybean in aboveground biomass. Our results also did
not show any significant difference among the F2population in aboveground biomass.
The total aboveground biomass of the F3 population
ranged from 144.06 g, 138.18 g and 131.54 g for the RR, RS and SS
plants, respectively, and no significant differences were found in
biomass within the F3 population. However,
F3 had a significantly higher aboveground biomass
(P < 0.05) than wild soybean, while F3had slightly higher aboveground biomass than GM soybean, but the
difference was not significant.