Figure 6. Leaf water potential, chlorophyll fluorescence and electrolyte leakage of lettuce in response to heat shock. Untreated (open bars) and AIP-treated (shaded bars) plants were exposed to high temperature 38 1C) for 3 h and the leaf water potential (A), fluorescence (B) and electrolyte leakage (C) were measured. The data indicate themeans7S.E. (n ¼ 3).
well as those grown under unprotective environ- mental conditions