Seleção de tipos de Ocimum basilicum L. de cor púrpura para o mercado de plantas ornamentais / Ocimum basilicum L. purple color pattern selection for the plant ornamental market

AUTOR(ES)
DATA DE PUBLICAÇÃO

2007

RESUMO

Ocimum basilicum is a very important species for food industry (sauce), as medicinal plant and aromatic uses. Recently it became interesting for the plant ornamental market with purple colored varieties. The purple color instability is a problem to be solved in order to improve the commercial exploitation of such plants. The main purpose of this work was to evaluate the transference of morphological characters between cultivars of O. basilicum and describe the segregation of the purple color and other morphological characters using a dwarf variety in order to select plants combining the purple color and compact inflorescences. Three assays were carried out in the Biological Experimental Station, University of Brasilia. In the first one, seedlings of three O. basilicum varieties and cultivars: Lettuce Leaf, Dwarf and. Dark Opal, were cultivated side by side to allow the gene transference by natural polinization. In the second assay, seeds of the three varieties collected in the first assay were growth in field to describe its morphological characteristics and the prevalence of purple color. In the third assay, seeds of only one dwarf and purple plant with compact inflorescence selected in the second assay were growth and cultivated in glasshouse, to describe the plant height, the inflorescence size, the foliar sheet shape and purple color prevalence. Strong reversion to the green color was observed. The selected pattern to ornamental market, dwarf purple plants with compact inflorescences occurred only in 8,33 % of the progeny. According to this instability plants to ornamental market could be produced only by cuttings. Selfing assays have to be programmed in order to stabilize the anthocyanin expression and the morphology as well.

ASSUNTO(S)

produção vegetal purple color stability estabilidade da cor púrpura ocimum basilicum l. segregation pattern plantas aromáticas plantas ornamentais inflorescência compacta purple basil ocimum basilicum l. manjericão roxo padrão de segregação agronomia compact inflorescence

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