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<p>The Brazilian ornamental market has experienced significant growth, driven by a rich yet underexplored native flora. The genus <i>Allamanda</i> L. stands out among the species with high ornamental potential, known for its showy flowers and adaptability to warm climates. This study aimed to morpho-agronomically characterize native species of the genus <i>Allamanda</i> L., collected in Northeastern Brazil, to identify genotypes with superior attributes for ornamental use. A total of 16 quantitative and eight qualitative descriptors were evaluated in a completely randomized design, with seven replications per species. Analyses of variance, cluster analysis, and and Principal Component Analysis revealed significant variability among the genotypes. <i>A. blanchetii</i> stood out for its magenta floral coloration, higher number of flowers per inflorescence, longer branch length, and high foliage density desirable attributes for landscaping and ornamental purposes. The absence of pests or diseases during the evaluation period suggests natural resistance of the species, which, combined with their native origin, reinforces their feasibility as alternatives to widely used exotic species. The results indicate that the evaluated species have the potential to be included in sustainable landscaping projects, contributing to biodiversity conservation and a reduction in environmental impacts. The unprecedented characterization carried out in this study provides essential support for breeding programs and regional germplasm conservation strategies, in addition to expanding the possibilities for the use of native plants in national floriculture.</p>

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Phenotypic diversity and ornamental potential of native species of the genus Allamanda L. in Mid-North region of Brazil

  • 期刊论文

  • 发表日期：

    2025年12月5日

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  • Júnia Mariza Alves Araújo,
  • Gabriel Viana Ferraz,
  • Paulo Egdio Araújo Ferreira,
  • Gerson do Nascimento Costa Ferreira,
  • Marcones Ferreira Costa,
  • Carlos Humberto Aires Matos Filho,
  • Angela Célis de Almeida Lopes,
  • Regina Lucia Ferreira Gomes,
  • Verônica Brito da Silva

摘要

The Brazilian ornamental market has experienced significant growth, driven by a rich yet underexplored native flora. The genus Allamanda L. stands out among the species with high ornamental potential, known for its showy flowers and adaptability to warm climates. This study aimed to morpho-agronomically characterize native species of the genus Allamanda L., collected in Northeastern Brazil, to identify genotypes with superior attributes for ornamental use. A total of 16 quantitative and eight qualitative descriptors were evaluated in a completely randomized design, with seven replications per species. Analyses of variance, cluster analysis, and and Principal Component Analysis revealed significant variability among the genotypes. A. blanchetii stood out for its magenta floral coloration, higher number of flowers per inflorescence, longer branch length, and high foliage density desirable attributes for landscaping and ornamental purposes. The absence of pests or diseases during the evaluation period suggests natural resistance of the species, which, combined with their native origin, reinforces their feasibility as alternatives to widely used exotic species. The results indicate that the evaluated species have the potential to be included in sustainable landscaping projects, contributing to biodiversity conservation and a reduction in environmental impacts. The unprecedented characterization carried out in this study provides essential support for breeding programs and regional germplasm conservation strategies, in addition to expanding the possibilities for the use of native plants in national floriculture.