marginally significantP = 0.0959
Linear regressions revealed a marginally significant negative effect of α-T on biomass of target plants ( F 1,14 = 3.19, P = 0.0959, r 2 = 0.19), and a significantly negative effect of BBT on biomass of target plants ( F 1,14 = 4.71, P = 0.0476, r 2 = 0.25).