Figure 2.

Root elongation rate on high (1,000 μm) and low (1 μm) phosphorus media in the presence or absence of 2 μm AVG and ACC, as indicated. Plants germinated on high or low phosphorus medium and treatments with AVG (2 μm) and ACC initiated on d 6 after germination. Elongation rates are reported for d 3 of treatment (9 d after germination). Data are means ± se of six plates, with three to four seedlings per plate.