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EXOGENOUS PHYTOHORMONES INFLUENCE ON THE BLACKBERRY (RUBUS FRUTICOSUS L.) REGENERATES DEVELOPMENT AND TOOLS OF THEIR CONTAMINATION REDUCTION IN POSTASEPTIC CULTURE

We researched the impact of exogenous phytohormones on morphogenesis and postaseptic adaptation of blackberry regenerants (Rubus fruticosus L.). We have ascertaine, that increased auxin’s content in the nutrient medium of culture in vitro facilitates taking roots under postaseptic conditions, while regenerative ability of plants decreased under high content of synthetic cytokinins.

The use of gibberellins and cytokinins in plant’s cultivation under conditions ex vitro also decreases their healing, as well as adds to exogenous auxin increase regeneration’s indexes.

Blackberry regenerants’ contamination cause deaths of a significant number under postaseptic conditions. An effective way of protection is using Previcure Energy at a dose of 1,5 g/l and develops the measures on controlling humidity under ex vitro conditions.

Key words: postaseptic adaptation, rhisogenesis, phytohormones, contamination ex vitro.

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