PHYSIOLOGIC QUALITY OF SEEDS AND AGRONOMIC PERFORMANCE OF SWEET CORN GENOTYPES

Authors

  • André Ferreira Pereira UFG
  • Patrícia Guimarães Santos Melo UFG
  • Jaison Pereira de Oliveira Embrapa Arroz e Feijão
  • Aracelle Assunção UFG
  • Luíce Gomes Bueno UFG

Keywords:

Zea mays, total sugar, vigor, chlorophyll

Abstract

This study was developed to evaluate the agronomic performance and  physiological quality of seeds of six commercial sweet corn simple hybrids, fifteen double hybrids obtained from crossings among the simple hybrids, taken two by two, and one control. The field phase was conducted in Goiânia (16°35'S, 49°21'W and 730 m of altitude), in a clay Oxisol. It was used a randomized complete design,  with four replications. The yield, percentage of standard ears without straw, percentage of industrial yield, total soluble solids content, measured chlorophyll content, and total sugars content were determined. The germination tests cold without soil  (modified), accelerated aging, and tetrazolium were carried out for physiological quality seed evaluation. From the physiological tests, the percentage values and emission indexes of primary root were calculated. The results showed genetic potential among the genotypes tested for agronomic characters and seed quality. Thus, the use of those genotypes in plant breeding programs could happen through the composite  obtention of inbred lines, mainly for the characters productivity of ears with straw, industrial yield, chlorophyll content, and modified cold test.

KEY-WORDS: Zea mays; total sugar; vigor; chlorophyll.

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Published

2008-11-14

How to Cite

PEREIRA, A. F.; MELO, P. G. S.; OLIVEIRA, J. P. de; ASSUNÇÃO, A.; BUENO, L. G. PHYSIOLOGIC QUALITY OF SEEDS AND AGRONOMIC PERFORMANCE OF SWEET CORN GENOTYPES. Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics], Goiânia, v. 38, n. 4, p. 249–261, 2008. Disponível em: https://revistas.ufg.br/pat/article/view/5077. Acesso em: 26 nov. 2024.

Issue

v. 38, n. 4, Oct./Dec. 2008

Section

Research Article

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