Fig. 2From: Cryopreservation of sessile oak (Quercus petraea (Matt.) Liebl.) plumules using aluminium cryo-plates: influence of cryoprotection and dryingEffects of different sucrose solutions (0.8; 1.0; 1.2 M) and drying times (1.0–4.0 h) on the survival of Q. petrea plumules after storage in liquid nitrogen (+ LN). The initial growth of the nonstored plumules was 100% (Table 2). Bars represent the mean ± SE; bars marked with different letters differ significantly (Tukey’s tests p ≤ 0.05); capital letters indicate differences between the same concentrations at different times and small letters indicate differences between different concentrations at the same timeBack to article page