Effects of IBA concentration, collection time and cutting length on hibiscus cutting propagationVegetative propagation by tip cutting can be influenced by factors such as collection time, cutting length, auxin concentration and cutting physiological status. The ornamental Hibiscus (Hibiscus sp.) is commercially propagated by cuttings. Therefore, there is a need to study the influence of these factors on the rooting capacity of this specie. The aim of this work was to evaluate the IBA effect, cutting length and collection time on Hibiscus tip cutting propagation. The experiment was carried out in the plant production sector of the Universidade Tecnológica Federal do Paraná, Campus Dois Vizinhos, Dois Vizinhos, PR (Brazil). The experiment was arranged in a 3 x 2 x 2 factorial completely randomized block, (IBA concentration x cutting length x collection time), with four replications, with each plot consisting of ten cuts. Two collecttion times (June and September), two shoot cutting lengths (6 and 12 cm) and three IBA concentrations (0; 1 and 2 g L -1 ) were tested. At the two collection times, after 77 days, the rooting percentage, numberRecebido para publicação em 22/03/2010 e aprovado em 08/06/2011

A alporquia tem-se mostrado o método mais promissor para a propagação assexuada da jabuticabeira. Porém, alguns detalhes da técnica devem ser aprimorados paraaumentar os resultados positivos. O trabalho teve como objetivo avaliar a melhor época, concentração de ácido indolbutírico (AIB) e tipo de embalagem para a propagação da jabuticabeira-Açu [Plinia cauliflora(DC.)KAUSEL] por alporquia. O trabalho foi realizado na UTFPR – Câmpus Dois Vizinhos. Os experimentos foraminstalados em dezembro de 2011 e em abril, junho e setembro de 2012. Foi aplicado na região cambialAIB, nas concentrações de 0; 2.000 e 4.000 mg L-1. Após a aplicação do AIB, a área exposta foi envolvidacom substrato Plantmax® revestido com embalagem plástica transparente, embalagem plástica transparenterevestida por papel-alumínio ou embalagem plástica preta. O delineamento experimental adotado foi em blocosao acaso, em esquema fatorial 4 x 3 x 3 (época x concentração de AIB x tipo de embalagem), com 4repetições, considerando-se o uso de 5 alporques por parcela. Aos 180 dias após a implantação do experimento, em cada época de sua realização, foram avaliados a percentagem de calos nos ramos alporcados, onúmero e o comprimento médio das 3 maiores raízes (cm) e a percentagem de enraizamento. O enraizamento dejabuticabeiras utilizando a alporquia foi de 20,04% para a época de abril. A embalagem plásticatransparente revestida com papel-alumínio para a cobertura do substrato foi superior às demais, atingindo 8,69% deenraizamento. As concentrações de AIB testadas não influenciaram na rizogênese adventícia dos ramos.

One of the biggest challenges for expansion of jabuticaba fruit tree cultivation is the high cost of seedlings due to to difficulties with vegetative propagation. Here, we aimed to evaluate graft survival in combinations of Plinia cauliflora and rootstocks of other species from the Myrtaceae family. The study was carried out at the Universidade Tecnológica Federal do Paraná - Campus Dois Vizinhos, Paraná State, Brazil. Eugenia uniflora L., E. involucrata DC, and P. cauliflora were used as rootstocks and were obtained as seeds. The 'whip-and- tongue' and cleft grafting techniques were tested for vegetative propagation. Grafted plants were cultivated in a greenhouse. The experimental design was a randomized complete block, in factorial 3×2 (rootstock species× graft type), with four replicates of 10 grafts by plot. Compatibility between rootstock species and scion was evaluated by diameter growth below and above the grafting point and by vegetative budburst and survival percentages. The use of P. cauliflora grafts with the same species was required for propagation. E. involucrata and E. uniflora rootstocks were not capable of propagation with P. cauliflora . Therefore, it is necessary to test other species from the Myrtaceae family.

The aim of this work was to evaluate the substrate effect and recipient size on the germination and initial growth of chrysanthemum and perfect-love ornamental plants. The works was carried out in the Horticulture Nursery from UTFPR - Campus Dois Vizinhos - Paraná State, Brazil. The experimental design was in blocks randomized, in factorial 3 x 4 (recipient size x substrate), with four replications, considering 4 recipients by plot. It was used as recipients, small, medium and king container and as substrate the Plantmax® and the mixture Red Latosoil + Sand + Poultry Litter 1 (1:1:1 v/v), Red Latosoil + Sand + Poultry Litter 2 (1:1:1 v/v) and Red Latosoil + Sand + Poultry Litter 1 + Poultry Litter 2 (1:1:1:1 v/v). The Poultry Litter 1 and 2 had wood shavings and sawdust as different ingredients, respectively. The germination (%), total lenght plants(cm), roots length(cm), height(cm), leaf number and plants dry mass matter(g), were evaluate 63 days after experiment installation. For germination and early development of perfect-love the best container was small with a mixture the red latosoil + sand + Poultry Litter 1 + Poultry Litter 2 (1:1:1:1 v/v). For Chrysanthemum, besides to this container and mixing, the mixtures were also important Red Latosoil + sand + Poultry Litter 1 (1:1:1 v/v) e Red Latosoil + sand + Poultry Litter 2 (1:1:1 v/v).

Tamanho de esTacas e uso de Ácido indol-buTírico ou preparado homeopÁTico de arnica monTana na propagação de falsa-érica 138 RESUMO O mercado de flores e plantas ornamentais está em crescimento, sendo que, a falsa-érica (Cuphea gracilis) é planta com diversos usos no paisagismo, adaptando-se a meia sombra ou a pleno sol podendo ser utilizada para forrações ou em combinações cromáticas com outras plantas. Usualmente, a falsa-érica é propagada por sementes ou por estacas. O objetivo foi avaliar o tamanho de estacas e a concentração de AIB (ácido indol-butírico) e preparado homeopático a base de Arnica montana no enraizamento de estacas de falsa-érica. A coleta de estacas foi realizada em plantas matrizes cultivadas em jardins abertos a pleno sol no município de Verê-PR nos tamanhos padronizados de 6 e 12 cm de comprimento, sendo as mesmas tratadas com AIB, nas concentrações de 0; 1.000 e 2.000 mg L -1 além do preparado homeopático A. montana 12 CH. O experimento foi instalado em delineamento inteiramente casualizado, em fatorial 2x4 [comprimento da estaca x tratamento estimulante], com 4 repetições de 10 estacas por parcela. Após 45 dias, foram avaliados percentagem de estacas enraizadas e mortas, comprimento de raízes (cm), número de brotos e número de folhas. As concentrações de AIB, bem como a aplicação de homeopatia estimularam os nos processos de enraizamento adventício desta espécie. Palavras-chave: Cuphea gracilis, propagação vegetativa, planta ornamental. ABSTRACT Behavior of piles and indolbutyric or homeopathic preparedacid Arnica montana spread of false-erica The market for flowers and ornamental plants is growing. Since the false-érica (Cuphea gracilis) is a plant with many uses in the landscape, adapting to partial shade or full sun can be used for ground covers or chromatic combinations with other plants. Usually, the false-erica is propagated by seeds or by cuttings. The objective of this study was to evaluate the size of stakes and the concentration of IBA (indole butyric acid) and prepared homeopathic base of Arnica montana in rooting false-erica stakes. The collection of cuttings was carried out in arrays plants grown in gardens in standard sizes 6 and 12 cm in length, and were treated with IBA at concentrations of 0; 1.000 and 2.000 mg L -1 in addition to the homeopathic preparation A. montana 12 CH. The experiment was conducted in a completely randomized design in a 2x4 factorial [length x stake stimulant treatment], with 4 replications of 10 cuttings per plot. After 45 days, they were evaluated percentage of rooted and dead cuttings, root length (cm), number of shoots and number of leaves. The concentrations of AIB, and the application of homeopathy stimulated the adventitious rooting processes of this kind. Keywords: Cuphea gracilis, vegetative propagation, ornamental plant. INTRODUÇÃONo Brasil, a floricultura mostrou plena expansão configurando-a em um dos mais promissores segmentos do agronegócio nacional, com a comercialização e distribuição de flores e plantas ornamentais regido principa...