Effect of ABA and NaCl on wild-type and Atgint1 seed germination. A, Seed germination rates in the presence of ABA; seeds were scored for radicle emergence after 3 d. B, Seed germination rates in the presence of NaCl, with seeds scored for radicle emergence after 2 d. Data are means of three biological replicates (>50 seeds per replicate) ± sd. An asterisk indicates statistically significant difference from the wild type (Student’s t test, *P < 0.05, **P < 0.01).