African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6693

Full Length Research Paper

Physiological quality and genetic parameters of maize landraces seeds in southwestern Bahia

Erlani de Oliveira Alves
  • Erlani de Oliveira Alves
  • Agronomy/Phytotechnics Universidade Estadual do Sudoeste da Bahia (UESB), FAPESB Studentship. ZIP CODE: 45083-900 Vitoria da Conquista, Brazil.
  • Google Scholar
Ivan Vilas Boas Souza
  • Ivan Vilas Boas Souza
  • Agronomy/Phytotechnics, Universidade Estadual do Sudoeste da Bahia (UESB), CAPES Studentship. ZIP CODE: 45083-900, Vitoria da Conquista, Brazil
  • Google Scholar
Talitta Silva dos Santos Paiva
  • Talitta Silva dos Santos Paiva
  • Agronomy/Phytotechnics, Universidade Estadual do Sudoeste da Bahia (UESB), CAPES Studentship. ZIP CODE: 45083-900, Vitoria da Conquista, Brazil.
  • Google Scholar
Claudio Lucio Fernandes Amaral
  • Claudio Lucio Fernandes Amaral
  • Department of Biological Sciences (DCB), Universidade Estadual do Sudoeste da Bahia (UESB), ZIP CODE: 45206-190. Jequie, Brazil.
  • Google Scholar
Yuri Ferreira Amorim
  • Yuri Ferreira Amorim
  • Agronomy/Phytotechnics Universidade Estadual do Sudoeste da Bahia (UESB), FAPESB Studentship. ZIP CODE: 45083-900 Vitoria da Conquista, Brazil
  • Google Scholar


  •  Received: 27 August 2014
  •  Accepted: 26 April 2015
  •  Published: 21 May 2015

Abstract

The environmental adaptation of maize germpasm is mainly controlled by certain genes, such as ZmCCT. This factor is influenced by both the genotype and the environment itself, being the gene able to express itself in the germination and seedling vigor under the conditions that is offered. The objective of this study was to estimate genetic parameters for traits related to physiological quality in maize landraces seeds. Hundred seeds of six strains were used: Catingueiro, Colombianoroxo, Colombianopreto, Cabeça de negro, Colombiano Vermelho and Estrada de ferro, arranged in polystyrene trays, each tray with 25 seeds, maintained at a temperature of 19 to 23°C, moistened with 15 ml of deionized water daily. The experimental design was completely randomized, with four repetitions. We evaluated the percentage of seeds germinated in the presence of coleoptile (%); assessment of the total weight of adventitial and primary roots (g); assessment of the total weight of the coleoptile (g); assessment of the length of the longest coleoptile (mm) and the length of the largest adventitial root (mm); length ratio of shoots with roots using direct division between heritability and genetic gain variables. Data were submitted to ANOVA. Percentage data were transformed by the formula arcsin [(x +0.5) / 100] 1/2 before being submitted to ANOVA. For comparison of means, we adopted the Tukey test at 5% probability of error. The results indicated genetic variability for the different characteristics of the studied physiological quality, especially for Catingueiro variety with high heritability and possible genetic gain with the potential to be used in breeding programs.
 
Key words: Variety, genetic gain, heritability, vigor, Zea mays L.