%0 Journal Article
%T Propaga  o de Siparuna guianensis Aublet (Siparunaceae) por estaquia caulinar Siparuna guianensis Aublet propagation by stem cutting
%A Carla M. A. Valentini
%A Juliane D. Almeida
%A Maria de F. B. Coelho
%A Carmen E. Rodr¨ªguez-Ort¨ªz
%J Revista Brasileira de Ci¨ºncias Agr¨¢rias
%D 2011
%I Universidade Federal Rural de Pernambuco
%R 10.5039/agraria.v6i3a1342
%X Siparuna guianensis Aublet, esp¨¦cie que ocorre no cerrado, ¨¦ usada na medicina popular para gripes, febres e dores no corpo e tem sido indicada como priorit¨¢ria nos programas de conserva  o de germoplasma. Dessa forma o objetivo deste trabalho foi avaliar a propaga  o da esp¨¦cie a partir de estacas obtidas da parte a¨¦rea. O delineamento usado foi o inteiramente casualizado no esquema fatorial 5 x 2 (concentra  es de AIB - 0, 500, 1000, 1500 e 2000 ppm e tipos de estaca - apical e subapical), em quatro repeti  es de cinco estacas. Aos 90 dias, foram avaliadas as porcentagens de sobreviv¨ºncia, de brota  o, de folhas novas, de calos e de enraizamento. A maior sobreviv¨ºncia e brota  o de estacas apicais de S. guianensis ¨¦ observada quando elas s o colocadas na concentra  o de 500 ppm de AIB por 60 segundos. A forma  o de calos e o enraizamento n o s o afetados pelo AIB. A propaga  o de S. guianensis deve ser por estacas apicais pr¨¦tratadas por 60 segundos com solu  o de AIB a 500 ppm. Siparuna guianensis Aublet. occurs in the cerrado, is used in folk medicine for colds, fevers and pains in the body and has been indicated as a priority in germplasm conservation programs. The aim of this study was to assess the species propagation from shoot cuttings. The experimental design was made in randomized blocks in the factorial scheme 5x2 with five concentrations of IBA (0, 500, 1000, 1500 and 2000 ppm) and two types of cuttings (apical and subapical) with four replications of five cuttings. On the 90th day, survival, budding, new leaves, calluses and rooting percentages were evaluated. The greatest survival and apical cuttings budding of S. guianensis is observed when they are put in the concentration of 500 ppm IBA for 60 seconds. Calluses formation and rooting are not affected by IBA. S. guianensis propagation must be obtained by apical cuttings pre-treated for 60 seconds with IBA at 500 ppm.
%K AIB
%K negramina
%K propaga  o vegetativa
%K IBA
%K negramina
%K vegetative propagation
%U http://www.agraria.pro.br/sistema/index.php?journal=agraria&page=article&op=view&path%5B%5D=agraria_v6i3a1342