Fig. 7.

Root viability, as measured by the triphenyl tetrazolium chloride (TTC) reduction method and the absorbance (A) at 490 nm, of SAG12-ipt creeping bentgrass (line S41) and wild-type ‘Penncross’ (WT) exposed to PEG-induced water stress at various growing solution osmotic potentials (–0.05 to –1.4 MPa). Vertical bars indicate LSD values where significant differences were detected (P ≤0.05) for comparison between plant lines at a given osmotic potential of the growth solution.