GERMINATION AND VIGOR OF CAGAITA (Eugenia dysenterica MART. ex DC.) SEEDS AS AFFECTED BY SEED SIZE AND HARVEST TYPE

Authors

  • Edson Ferreira Duarte
  • Ronaldo Veloso Naves
  • Jácomo Divino Borges
  • Noga Neve Ribeiro Guimarães

Keywords:

Seed, seedling, vigor, morphology, savannah

Abstract

"Cagaita" is a native species of "Cerrado" savannah, with very irregular seed germination. The objective of this study was to evaluate the effect of harvest type and seed size on the germination rate and vigor of Cagaita seeds. The experiment was carried out in a 2 x 3 factorial completely randomized design with six treatments: two harvest types (from the tree and on the ground) and three seed sizes (large, medium, small). Germination started fourteen days after planting and ended in the 60th day. The germination and seedling early growth were described and illustrated by drawings. Large seeds harvest on the ground present lower humidity, greater seedling vigor, and higher fresh matter. There were not found significant differences for germination rate treatments. It was concluded that Cagaita seeds should be obtained from ripe fruits on the ground. Large seeds from those fruits showed to be more vigorous. In seedling production and germination tests the separation of seeds by size may be applied for obtention of seed lots with uniform vigor.

KEY-WORDS: Seed, seedling; vigor; morphology; savannah.

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Author Biography

Edson Ferreira Duarte

Programa de Pós-graduação em Agronomia, Escola de Agronomia e Engenharia de Alimentos, Univ. Federal de Goiás (UFG).
Rodovia Goiânia-Nova Veneza, Km 0, Campus Samambaia. CEP 74001-970 Goiânia, GO. E-mail: edson@agro.ufg.br

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Published

2007-10-24

How to Cite

DUARTE, E. F.; NAVES, R. V.; BORGES, J. D.; GUIMARÃES, N. N. R. GERMINATION AND VIGOR OF CAGAITA (Eugenia dysenterica MART. ex DC.) SEEDS AS AFFECTED BY SEED SIZE AND HARVEST TYPE. Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics], Goiânia, v. 36, n. 3, p. 173–179, 2007. Disponível em: https://revistas.ufg.br/pat/article/view/2043. Acesso em: 30 jun. 2024.

Issue

v. 36, n. 3, Sep./Dec. 2006

Section

Research Article

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