Morfologia de Frutos, Sementes e Plântulas de Aspidosperma pyrifolium Mart. (Apocynaceae)

• DOI: 10.22533/at.ed.9231915037

• Palavras-chave: biometria; espécie nativa; germinação; pereiro.

• Keywords: biometry; native species; germination; pereiro

• Abstract:

  Knowledge of the morphological
  aspects of fruits, seeds and seedlings can be
  used in taxonomic studies, interpretation of 
  germination tests and in the identification and differentiation of species. The objectives
  of the research were to describe and illustrate the external morphological characteristics
  of fruits and seeds, germination and seedling of pereiro (Aspidosperma pyrifolium
  Mart.). The ripe fruits were harvested from parent trees in the municipality of Catolé do
  Rocha - PB. The fruit is simple, dry, woody, dehiscent and polyspermic. The length is
  60.59 mm; width 35.61 mm; thickness of 11.81 mm; weight of 8.15 g and on average
  7.16 seeds per fruit. The seeds are papyraceous, with a rounded shape and a thin
  wing. The length is 16.69 mm; width 15.23 mm; thickness of 1.20 mm and unit weight
  of 0.14 g. The germination is of the epidermal type phanerocotonar and the emission of
  the radicle occurs on the 3rd day after sowing, breaking the integument at the base of
  the seed. At the thirtieth day, the seedling presents an average length of 22.10 cm. The
  morphological aspects described and illustrated were very homogeneous and provide
  information for the species recognition in the early stages of development.

• Número de páginas: 15