Obtenção de mudas do abacaxizeiro Gigante-de-Taraucá por meio do seccionamento do caule

Abstract

Pineapple is the third most cultivated tropical fruit in the world, making Brazil one of the largest producers in the world. The objective of the present work was to evaluate the effect of stem sections in two environments on the production of sprouts of Gigante-de-Tarauacá cultivar. The experiment was conducted in the nursery of the School Farm of the State University of Maranhão (UEMA), Campus Paulo VI, São Luis-MA. The pineapple stems used in the experiment were collected 15 days after fruit harvest in the municipality of Santa Rita-Ma. After the collection, the stems were taken to the School Farm of the State University of Maranhão, where they were sectioned. The experimental design used was completely causalized in the 2 x 4 factorial scheme, with the ambient factors with shading (50% shade) and full sun, with 6 replications per experimental unit. The stems were sectioned transversely at apex and base then vertically in 2 and 4 slices and treated with 1% Cercobin (700) fungicide. The evaluations were performed every 15 days until completing 105 days of implantation. At 60 days of implantation, it was verified that the environment in full sun providing greater number of seedlings per section. In the shaded environment, at 105 days, the seedlings obtained from the section of the apex with two slices showed greater development than those in full sun