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Leaf water relations of wild type (Ben), lwr1, and lwr2 under well-watered conditions (soil ψw = −0.24 MPa). A, Leaf ψw, ψs, and calculated ψp. Data are means ± se (n = 4−5). Significant differences (P < 0.05) of mutants versus wild type are marked with an asterisk. B, Water loss of detached leaves. Data are means ± se (n = 14). Error bars are not shown when smaller than symbols.
