Cultivo de cosmo-de-jardim (Cosmos bipinnatus Cav.) como alternativa para o mercado de flores comestíveis

Abstract

The commercial production of edible flowers shows high growth in the gastronomy niche market. As its use is different, it is necessary to adapt its production to the needs of the market and thus look for different forms of cultivation for edible ornamental plants. The objective of this work was to produce heads of garden cosmos with different diameters for use in cooking, as edible flowers. A completely randomized experimental design was used in a split-plot scheme in time, where the plot factor was pot sizes (sizes) X Days after planting (DAP) days after planting, with 6 replications. The seedlings were transplanted into 1, 4 and 7 L pots containing a substrate formulated with 10% Max Soil of Natu Fertilizers commercial substrate, 20% tanned cattle manure, 10% rice husk and 60% sieved soil. The following were evaluated: number of leaves, plant height and number and diameter of heads (inflorescences). For number of leaves, there was a significant interaction between the DAP variables and the number of leaves. Each day after planting, the number of leaves increased by an average of 0.59. For plant height, the 1 L pot obtained the highest growth rate, and the 7 L and 4 L pots obtained the highest average height for plants in the reproductive stage. For the variable number of inflorescences, there was no significant difference between the vessels and the diameter that occurred in most inflorescences for the three vessel sizes was 4.0 to 9.0 cm. Therefore, 1 L, 4 L and 7 L pots are recommended for the production of garden cosmos heads.