The effect of foliar nitrogen fertilization, for an efficient acclimatization of in vitro propagation bromeliads was evaluated, using Aechmea blanchetiana plantlets which, after the in vitro propagation, were transferred to a sandy substratum and fertilized with 3.0 mL sprinkler irrigation of 0.0; 2.5; 5.0; 7.5 and 10.0 g L-1 nitrates concentrations using KNO3 as N source. Foliar length, the size of the larger root, leaves number, dry and fresh fitomass quantity and dead plants percentage after three times of acclimatization (0, 60 and 120 days) were evaluated. The results showed that higher KNO3 concentrations were efficient to brighten up the stress effects. However, at the end of the experiment (120 days), only lower KNO3 concentrations to an efficient acclimatization to this specific specie were necessary.
Aechmea blanchetiana; bromeliaceae; fertilization; potassium nitrate
