Figure 7.
The effect of rain on the concentration of B in whole shoots (A), root DW (B), and shoot DW (C) of two cultivars of barley either sensitive (Schooner) or tolerant (Sahara) to B toxicity. Each value is the mean ± se of three to five replicates. Asterisks indicate significant difference (P < 0.05) compared to the no rain control. The dashed lines indicate weights of plants grown at low B.