Figure 4.

Effect of Exogenous ABA on rrp7-1, smo4-3, parl1-2, and amiR-MAS2.1 Plants.

Percentage of seedlings grown in medium supplemented with different concentrations of ABA that displayed green, fully expanded cotyledons when scored at 10 DAS. The abi4-2 and aba1-104 mutants were used as controls. The experiment was repeated three times, each with 156 seeds of each genotype, sown onto three different plates. Error bars indicate sd. Asterisks indicate values significantly different from the corresponding wild type in a Student′s t test (*P < 0.05, and **P < 0.01). The genetic background of abi4-2 and aba1-104 is Col-5, and that of all other mutants is Col-0.