African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6578

Full Length Research Paper

Standardizing germination tests for quinoa seeds

Flívia Fernandes de Jesus Souza
  • Flívia Fernandes de Jesus Souza
  • Faculty of Agronomy and Veterinary Medicine, University of Brasília, 70910-970, Brasília-DF, Brazil.
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Julia Emanuela Almeida de Souza
  • Julia Emanuela Almeida de Souza
  • Faculty of Agronomy and Veterinary Medicine, University of Brasília, 70910-970, Brasília-DF, Brazil.
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Nara Oliveira Silva Souza
  • Nara Oliveira Silva Souza
  • Faculty of Agronomy and Veterinary Medicine, University of Brasília, 70910-970, Brasília-DF, Brazil.
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Carlos Roberto Spehar
  • Carlos Roberto Spehar
  • Faculty of Agronomy and Veterinary Medicine, University of Brasília, 70910-970, Brasília-DF, Brazil.
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Thais Fernandes de Jesus
  • Thais Fernandes de Jesus
  • Department of Agronomy, State University of Goiás, 75780-000, Ipameri-GO, Brazil.
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  •  Received: 11 October 2016
  •  Accepted: 21 December 2016
  •  Published: 19 January 2017

Abstract

The standard germination tests have been commonly used on commercial grain crops, such as soybean, field beans, rice and maize. However, there are no standard tests for potential new crops; quinoa being one of them. This work is aimed at evaluating the effect of substrate, temperature and counting time in seed germination of quinoa. The following treatments were used in tests with seeds: on blotter paper, between blotter paper, on sand and within sand, all previously soaked with distilled water. These substrates were combined to the temperatures of 15, 20, 25, 30°C, and alternated between 20 to 30°C. The experiment was conducted on an entirely randomized factorial design 5 × 4 (temperature × substrate) with 4 repetitions. Normal seedlings, abnormal seedlings and dead seeds were counted until stabilized. The germination velocity index and mean time for germination were calculated.  From the results, it was concluded that germination test of quinoa seeds should be conducted at 20 to 30°C alternate temperatures, on or between blotter paper, with initial count at 2 days and final count at 4 days.

Key words: Chenopodium quinoa willd., substrate temperature, counting time, seed viability.