Figure 5.

Variation in ABA contents determined in needles of 3-year-old maritime pine plants generated by somatic embryogenesis from not-primed (NP) or primed at 37 °C (P37) or at 50 °C (P50) megagametophytes, when subjected to a 30-day hydric stress experiment. Data are mean ± SE of differences referred to mean initial ABA content, of needles taken during (T15), at the end (T30) of the experiment, and after a recovery period of 10 days (TR), with 4 replicates each. For each sampling time, values following the same letter were not significantly different according to Tukey-b test (α = 0.05).