Eucalyptus plants were cultivated in an in vitro system according
to Lehr et al. (2008), with modifications. Briefly, 25 mL of ¼
MS mediumwas poured in a Petri dish (9 cm in diameter), and after
the agar solidified, a semicircle of medium was discarded and one
plant was placed on the remaining semicircle (Fig. 1).