Experimental aspects concerning in vitro growing of the chilli pepper (Capsicum annuum L.).

The study proposed to establish the existent interrelations and phytohormones influence and its concentration in the culture medium on plantlets growing of chilli pepper (Capsicum annuum L.). The plantlets of chilli pepper, local population Buteni were obtained in in vitro conditions through the culture of axillar shoots. It were added in the base culture medium (Murashige-Skoog) three classes of phytohormones (auxins, citokinins and gibereline) in five concentrations (0.1; 1.0; 1.5; 2.0; 2.5 mg·L -1 ). Generally, the auxins and gibberellic acid, in combination with big concentrations significantly favored the plantlets growing. The biggest values of the characters were registered in combinations: NAA/2.5 mg·L -1 , IAA/2.5 mg·L -1 , GA3/2.5 mg·L -1 . The growing regulators influence, indifferently the concentrations had been applied in the culture medium, it regularly manifested, on the plantlets growing, as it followed (from the biggest to the smallest values): IAA, NAA, GA3, KIN, 2IP. Under exclusive influence of growing regulators, the plantlets height oscillated between 25.0 and 42.1 mm.