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The economic importance of mahogany highlights the importance of morphometric analyzes of seedlings and the nutritional status for the training of seedlings quality. It was intended in this work to investigate the effects of the addition or not of nutrient solution in different substrates on the quality of Pochota fendleri seedlings grown for 60 days as well as the accumulation of macro and micronutrients. The experimental design was the completely randomized in a 4 x 2 factorial scheme with five replications. Each plot was made up of five seedlings. The studied factors were: four mixtures of substrates and addition or not of nutrient solution: (T1) = sand; (T2) = soil; (T3) = soil + sand; (T4) = sand + soil + ground Brazil nut fruit treatments are eight: shell; (T1) = sand + nutrient solution; (T2) = soil + nutrient solution; (T3) = soil + sand + nutrient solution; (T4) = sand + soil + Brazil nut fruit shell + nutrient solution. Growth traits (height, stem diameter and shoot and root dry mass) and quality parameters of seedlings (shoot dry mass/root dry mass ratio, total dry mass and Dickson quality index) were evaluated. Pochota fendleri seedlings with addition of nutrient solution present growth and quality independent of the substrate. The following nutritional requirement of the Pochota fendleri seedlings to the three substrates with nutrient solution addition follows the descending order for the macronutrients (N > Ca > K > Mg > P > S) and micronutrients (Fe > Mn > B > Zn > Cu).

Nutrition and accumulation of nutrients in Pochota fendleri seedlings