Fig. 2From: Elucidation of molecular and hormonal background of early growth cessation and endodormancy induction in two contrasting Populus hybrid cultivarsDormancy development (characterized as days to bud break) of Okanese (circle) and Walker (triangle) cultivars under SD conditions (12/12 h, light/dark period) at 18/3 °C temperature during the first 30 days, then 10/14 h for an additional 30 days. Error bars represent the ±SEM. N = 40. Different letters indicate statistically different (P < 0.05) number of days for the given cultivarBack to article page