The aim of the present work was to evaluate the effects of naphthaleneacetic acid (NAA) and activated charcoal on the in vitro rooting of the pear tree (Pyrus communis L.) cv. Carrick. Therefore pear tree microshoots with approximately 0.8 to 1cm of length were used as explant. The treatments were constituted of three concentration of NAA in the culture medium (0; 3.2 and 6.4mM) and two concentration of activated charcoal (0 and 1%). NAA in the concentration of 3.2 and 6.4mM and in the absence of activated charcoal in the culture medium, showed better rooting rate to pear tree cv. Carrick.
microcuttings; tissue culture; NAA; activated charcoal
