It was evaluated the effect of doses of Stimulate Mo, a product with growth regulators on the sprouting and pre rooting of Peruvian carrot explants, cultivar Amarela Comum, associated with and without floating rowcover of polypropylene. The following doses were tested: 1) 0 (control without treatment); 2) 2.5 ml/ L; 3) 5.0 ml/ L; 4) 7.5 ml/ L and 5) 10.0 ml/ L. The explants were removed from the cornels, selected by size (10-15g), cut in bezel (1.5-2.0 cm of length) and treated by immersion in sodium hypocloride 10% during three minutes. Afterwards the explants were treated in different dose of "Stimulate Mo" during 30 minutes and stored during five days in a shaded place. After planting the floating rowcover of polypropylene had been set, it was evaluated the percentage of explants with sprouting, number and length of leaves and number and length of roots. It was not observed significative effect of interaction between floating rowcover and doses of "Stimulate Mo". The protection by floating rowcover was superior in all of the characteristics observed, promoting the development of uniforms and vigorous explants and early pre-rooting at 36 days after planting. The product "Stimulate Mo" was efficient to increase number and root length confirming its utility as a rooting stimulator.
Arracacia xanthorrhiza Bancroft; rooting; polypropylene; plant growth regulators
