Desenvolvimento vegetativo de Euterpe oleraceae cultivada em diferentes tamanhos de recipientes e misturas de substratos

Abstract

This capstone project has as goal to determine the ideal bag size and the best soil / compost ratio in the development of E. oleraceae seedlings. The experiment will be performed in a completely randomized design in a 3 x 5 factorial scheme, with three different sizes of bags (20 x 30 cm), (17 x 20 cm), (11 X 12 cm) and five proportions of soil and organic compost (100 : 0; 80:20; 60:40; 40:60; 20:80), with 8 repetition, totalizing 120 experimental units. The evaluations will be taking into account the following variables: Aerial height (H), log diameter (D), shoot dry matter (MSPA), root dry matter (MSR), shoot frash matter (MFPA), root frash matter (MFPR), total dry matter (MST) and index Of Dickson quality (IQD). The data will be submitted to analysis of variance and, afterwards, the average will be compared by the Tukey test at the 5% probability level. Linear, quadratic and cubic regression models will be tested to better describe the proportions of soil and organic compost. The average of height, diameter, MFPA, MSPA, MFPR, MSPR, MST and IQD were significantly higher as bag size was increased. In relation to the proportion of organic compound, the substrate with the lowest proportion had the best result. Açaí seedlings can be satisfactorily produced in 20 x 30 cm polyethylene bags, using the dystrophic yellow latosol substrate.