Plantlets of micropropagated anthurium are subjected to one of the most critical steps in plant tissue culture, which is the transfer in vitro to ex vitro. The use of arbuscular mycorrhizal fungi (AMF) that would promote greater growth and survival of plantlets can be promising and viable for micropropagated plants grown in protected environment. The objective was to monitor the physiological responses of anthurium cv. Eidibel plantlets under the influence of fertilizer N: P: K and / or inoculation of Glomus intraradices. In a first stage, the plantlets in vitro were transferred to trays of polypropylene, with a pine bark substrate, with the treatments: control, fertilization (Osmocote 15:10:10), AMF inoculation and fertilization, and only inoculation. The plantlets remained for 100 days, when they were transplanted into one L pot plant, containing the same substrate. The control plantlets were divided in the treatments: control / control, control / fertilization, control / fertilization and inoculation and control / inoculation, while the plantlets of other treatments remained the same. At this stage, the plantlets were kept for 450 days, and analyses made were: shoot, root, leaf and total dry matter, leaf area, shoot / root ratio, total dry matter/ total fresh matter ratio and mycorrhizal colonization. The mycorrhization of micropropagated anthurium, at the stage of acclimatization and plantlet production, did not show the same positive effect of N: P: K fertilization in promoting plant growth.
Anthurium andraeanum Lindl; Araceae; micropropagation; AMF
