DESENVOLVIMENTO INICIAL DE MUDAS DE COUVE-FOLHA EM FUNÇÃO DO USO DE EXTRATO DE ALGA (Ascophyllum nodosum)

The collard greens (Brassica oleracea L.) belongs to the family Brassicaceae, this family is the species that most resembles the ancestor to the wild cabbage, not as head and limb have their leaves well developed, rounded, with long petiole and veins and prominent . The objective of this study was to test the efficiency of use of the extract of the alga A. nodosum in the early development of seedlings of cabbage. We used a randomized block design with four treatments, the doses (0.0, 2.0, 4.0 and 6.0 ml L -1 of the extract of the seaweed (Ascophyllum nodosum) and five replications, each plot with ten plants. The seeds were the cabbage butter Georgia Topseed ® brand. The seedlings were planted in pots of black polyethylene with a capacity of 1 liter volume, the substrate being composed of steep bank (75%) and cattle manure (25%). At 23 days after sowing, the assessments were made: diameter (mm), shoot length (cm), number of leaves (plant unit -1 ), root length (cm), dry mass of the lamina (g plant -1 ), shoot dry weight (g plant -1 ), root dry weight (g plant -1 ), total dry matter (g plant -1 ) and the relationship between the dry mass of shoots and root dry mass (v/v). The best early development of seedlings of cabbage was observed with application of 3.80 ml L -1 of the extract of the alga A. nodosum (Acadian ® ).