Flowering induction time of 'pérola' pineapple cultivated in rain forest area of Roraima, Brazil

Com o objetivo de obter subsídios para ampliação das épocas de produção do abacaxizeiro (Ananas comosus (L.) Merrill), cv. 'Pérola', cultivado em área de mata de terra firme de Roraima, conduziu-se experimento em solo Podzólico Vermelho-Amarelo (PV), em delineamento experimental de blocos ao acaso, com cinco tratamentos, quatro subamostragens e quatro repetições. Os tratamentos constaram de indução da diferenciação floral, com acetileno, aos 6, 8, 10, 11 e 12 meses de idade. O número de filhotes/planta e o peso do fruto com e sem coroa tenderam a aumentar com a idade da planta e os tratamentos não influíram no teor de sólidos solúveis totais (brix).The objective of this research was to obtain subsidies to increase the production period of pineapple (Ananas comosus (L.) Merrill) cv. 'Pérola' cultivated in rain forest area of Roraima, Brazil. The experiment was conducted in red-yellow podzolic soil, in completely randomized blocks with five treatments, four subsamples and four repetitions. The treatments studied were flowering induction, with acetylene, at 6, 8, 10, 11 and 12 months after planting. By the results obtained, the number of suckers/plant and the fruit weight tended to increase when the plants were induced later and the treatments did not have effect on the brix contents