Effects of H2S and rhizobia on the shoot and root
biomass, chlorophyll content, and leaf relative water content (RWC)
under water deficiency condition
As shown in Fig. 1A-C, compared with control, Q8 and Q8+NaHS treatments
substantially increased the shoot and root biomass of soybean under the
three water conditions. With the decrease of water content, the shoot
and root biomass were appreciably reduced by Q8 and Q8+NaHS treatments
plants, but were not obviously changed by control and NaHS treatments
plants (Fig. 1A-C). Similarly, the chlorophyll content was remarkably
increased by Q8 and Q8+NaHS treatments compared with the control and
NaHS treatments under the three water conditions, and showed a slight
increasing trend in all treatments with the decrease of water content
(Fig. 1D). In addition, with the decrease of water content, the RWC of
the four treatments had different levels of reduction, but no matter
what water content, Q8 and Q8+NaHS treatments were remarkably higher
than other two treatments (Fig. 1E).