Pré-tratamento com água e doses de ácido indolbutírico para estaquia herbácea de pitangueiras

Abstract

RESUMO No Brasil, a maioria dos pomares de pitangueira (Eugenia uniflora) é formada por mudas do tipo pé-franco, o que torna os plantios com baixa uniformidade genética. A propagação vegetativa via estaquia é uma alternativa viável Palavras-chave: propagação vegetativa, auxinas, idade,Eugenia uniflora. (0, 2000, 4000 and 6000mg L -1 ABSTRACT In Brazil, most of the Surinam cherry (Eugenia uniflora) orchards is formed by ungrafted plants, which makes the plantations have low genetic uniformity. The vegetative minicutting propagation is a viable alternative for the propagation of several fruit species, and can also be used with native species providing the formation of orchards with homogeneous populations of plants, with production of seedlings with high health and accelerated propagation process. In this context, a study for the multiplication of Surinam cherry was conduced with herbaceous cuttings, taken from young and adult mother plants, immersed in indole butyric acid doses

Influência de ácido indolbutírico no enraizamento de estacas semilenhosas de Campomanesia aurea

“…In Surinam cherry (E. uniflora), there was a linear decrease in leaf retention of cuttings collected from young plants with the increase of IBA doses (LATTUADA et al, 2011). This is a result different from that observed for C. aurea, in which, even with the application of high IBA concentrations, cuttings had a high leaf retention.…”

“…In "camu-camu" (Myrciaria dubia (Kunth) McVaugh), a 58% rooting of hardwood cuttings was found, favored by the application of 200 mg L -1 of IBA (DELGADO and YUYAMA, 2010). In Surinam cherry (Eugenia uniflora L.), there was a 44% higher rooting for cuttings from young plants, regardless of IBA doses applied, and low callus formation (LATTUADA et al, 2011).…”

“…It belongs to the Myrtaceae family, which has a high potential for garden landscaping because of its morphological characteristics (STUMPF, 2009). It is commonly known as "guabiroba-do-campo", "goiabinhado-mato", "araçazeiro-do-campo" or "guabiroba-araçá" (LORENZI, 2006) and occurs in Rio Grande do Sul State, in the Campanha de Cima da Serra, Depressão Central and Serra do Sudeste (SOBRAL, 2003).…”

“…Fruiting occurs from December to February. The fruits are edible globular berries, with colors ranging from green to yellow according to the ripening stage (LORENZI, 2006;STUMPF et al, 2009;STUMPF, 2009). …”

“…Thus, the use of native species in this sector is a way to enhance local potentialities and contribute to the maintenance of biodiversity by the propagation and spread of the species. The spread of C. aurea occur naturally by seeds (LORENZI, 2006). However, the vegetative propagation is often used for the production of ornamental plants because it is a simple, inexpensive, and easy to perform technique, and because it reduces the cultivation time of some species, ensuring a uniformity of the varietal characteristics and optimizing the available propagules, increasing the possibility of seedling formation.…”