One Development of eggplant seedlings according to the use of biostimulant based on seaweed extract | Development of eggplant seedlings under different doses of biostimulant derived from Ascophyllum nodosum

English. Eggplant (Solanum melongena L.) belongs to the nightshade family and is among the ten most consumed vegetables in the country, its fruit is of the fleshy berry type which is rich in vitamins, proteins and mineral salts. Among the cultivation systems, the production of seedlings is one of the most important steps to obtain quality plants. To reduce dependence on chemicals, and ensure stability in the field, biostimulants are currently being used to boost agricultural performance. Algae of the Ascophyllum nodosum L. species are the most used as a biostimulant in agriculture, being a source of organic matter, amino acids, carbohydrates and nutrients, which can favor plant development. The present work was carried out with the objective of evaluating the development of eggplant seedlings under different concentrations of the biostimulant Acadian®. The experimental design adopted was randomized blocks, with five treatments, which consisted of doses: 0; 3; 6; 9; 12 mL.L-1 of the compound and ten repetitions. Classic F-1 hybrid eggplant seeds were used. After 34 days of sowing, morphological growth analyzes were performed, such as plant height, root length, stem diameter, dry mass of root and shoot. The results were subjected to analysis of variance and regression analysis using the SISVAR statistical analysis program. It was verified that the use of Acadian® biostimulant when applied to eggplant seedlings at the maximum observed dose of 4.62 mL.L-1 promotes positive effect in the evaluated characteristics.

Portuguese. Eggplant (Solanum melongena L.) belongs to the Solanaceae family and is among the 10 most consumed vegetables in Brazil. Among the cultivation systems, the production of seedlings is one of the most important steps to obtain quality plants and to reduce dependence on chemical products, in addition to ensuring crop stability. Currently, biostimulants are being used to improve agricultural performance. Ascophyllum nodosum L. algae are the most used for this purpose, being a source of organic matter, amino acids, carbohydrates, and nutrients that can favor plant development. This study aimed to evaluate eggplant seedlings development under different concentrations of the Acadian® biostimulant. The experimental design was conducted in randomized blocks and included five treatments, which consisted of doses of: 0, 3, 6, 9, and 12 mL p c L−1 of water, with 10 replications. The ‘Classic F 1’ hybrid eggplant seeds were used. Then, 34 days after sowing, the following morphological analyses were performed: plant height, root length, stem diameter, and root and shoot dry mass. The results were subjected to analysis of variance and regression analysis using the Sisvar statistical analysis program. The use of the biostimulant derived from Ascophyllum nodosum can increase the growth and development of plant height, root length, stem diameter, and root and shoot dry mass during the production phase of eggplant seedlings.