%0 Journal Article
%T Reguladores de crescimento na propaga  o in vitro de abacaxizeiro ornamental Growth regulators in in vitro propagation of ornamental pineapple plants
%A M¨¢rcia M. Dias
%A Moacir Pasqual
%A Aparecida G. Ara¨²jo
%A Ver£¿nica A. dos Santos
%J Revista Brasileira de Ci¨ºncias Agr¨¢rias
%D 2011
%I Universidade Federal Rural de Pernambuco
%R 10.5039/agraria.v6i3a818
%X O abacaxizeiro ornamental Ananas comosus (L.) Merr. var. ananassoides (Baker) Coppens F. Leal., pertence ¨¤ fam¨ªlia Bromeliaceae e destaca-se pelo potencial ornamental ainda pouco explorado economicamente. A propaga  o de plantas in vitro possibilita elevada produ  o de mudas com qualidade fitossanit¨¢ria. O objetivo do trabalho foi avaliar as diferentes concentra  es de 6-benzilaminopurina (BAP) e ¨¢cido naftaleno ac¨¦tico (ANA) na propaga  o in vitro de Ananas comosus var. ananassoides. O delineamento utilizado foi inteiramente casualizado, em esquema fatorial 4x4, constitu¨ªdo de quatro concentra  es de BAP (0; 0,5; 1,0 e 2,0 mg L-1) e quatro concentra  es ANA (0; 0,25; 0,5 e 1,0 mg L-1). Concluiu-se que a adi  o de 1,0 mg L-1 de BAP promoveu um maior n¨²mero de brota  es. O maior comprimento m¨¦dio das brota  es foi obtido na aus¨ºncia de BAP e o maior n¨²mero de ra¨ªzes, na aus¨ºncia de BAP e com 0,25 mg L-1 de ANA. The ornamental pineapple plant Ananas comosus (L.) Merr. var. ananassoides (Baker) Coppens F. Leal., belongs to the Bromeliaceae family, standing out for its ornamental potential, which is little explored economically. In vitro propagation allows a high production of pathogens-free plants. The objective of this work was to evaluate the different concentrations of 6-benzilaminopurine (BAP) and naphthalene acetic acid (ANA) in the process of in vitro propagation of Ananas comosus var. ananassoides. A completely randomized experimental design was used, with a 4 x 4 factorial scheme, consisting of four BAP concentrations (0; 0.5; 1.0 and 2.0 mg L-1) and four ANA concentrations (0; 0.25; 0.5 and 1.0 mg L-1). According to the results, the addition of 1.0 mg L-1 of BAP promoted the highest number of sprouts. The highest average sprout length was obtained in the absence of BAP and the highest root number was obtained with the addition of 0.25 mg L-1 of ANA, in the absence of BAP.
%K ANA
%K ananas comosus
%K BAP
%K Bromeliaceae
%K cultivo in vitro
%K ANA
%K ananas comosus
%K BAP
%K Bromeliaceae
%K in vitro cropping
%U http://www.agraria.pro.br/sistema/index.php?journal=agraria&page=article&op=view&path%5B%5D=agraria_v6i3a818