Desenvolvimento no campo de mudas de Senegalia bahiensis (Benth.) Bocage & L. P. Queiroz produzidas em tubetes de diferentes volumes

Abstract

The present study aimed to evaluate the development of seedlings Senegalia bahiensis (Benth.) Bocage & L. P Queiroz developed in different volumes of tube four months after planting. The experiment was conducted at the nursery, Federal University of Recôncavo of Bahia, Cruz das Almas Campus. For the production of seedlings was used Senegalia bahiensis seeds sown in three tube sizes (50, 180 and 280 cm3) using commercial substrate and slow release fertilizer. After 120 days the seedlings were taken to the field to check the post-planting performance in 15L bags filled with subsoil manured. The experiment was conducted in completely randomized design with four replications and two plants per repetition. The height and diameter of seedlings at the time transplanting to the bags were measured with the aid of a millimeter ruler and a manual caliper, respectively. And every 15 days the seedlings had their height and diameter measured up to complete 135 days. End with this data the increments in height and diameter were obtained. The dry weight of shoot and root was obtained at four months (135 days) after transplanting to bags. Data were subjected to ANOVA (α = 0.05), qualitative factors were compared by MDS test (significant minimum difference) and for the increments of height and diameter was employed analyze sequential regression. The growth of seedlings of Senegalia bahiensis planted the field resulted in statistical similarity between the produced in tubes 180 and 280 cm3 at the end of 135 days after planting. The planting of seedling species tested in this field simulation allows the use of tubes of 180 cm3 economy with the substrate, space nursery and effort in planting.