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Efeito do armazenamento na viabilidade, germinação e vigor das sementes de Coffea arabica L.

Como Citar
Flechas-Bejarano, N., & Medina-Rivera, R. (2021). Efeito do armazenamento na viabilidade, germinação e vigor das sementes de Coffea arabica L. Cenicafé Journal, 72(2), e72206. https://doi.org/10.38141/10778/72206
PDF (Espanhol) FLIP

Publicado: 30 Dezembro 2021

DOI
https://doi.org/10.38141/10778/72206
Dimensions
PlumX
Palavras chave
Tetrazolio

incubación

humedad relativa

temperatura

plántulas

almacenamiento

semilla

café

Tetrazolium

incubation

relative humidity

temperature

seedlings

storage

seed

coffee

Tetrazólio

Tetrazólio

incubação

umidade relativa do ar

temperatura

armazenamento

semente

café

##articleSummary.lastnum##
v. 72 n. 2 (2021): Cenicafé Journal
seção
Artigos
Termos de licença (See)
Creative Commons License

Este trabalho está licenciado sob uma licença Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Natalia Flechas-Bejarano
Cenicafé
https://orcid.org/0000-0002-3080-4988

Rubén Medina-Rivera
Cenicafé
https://orcid.org/0000-0002-9753-9613

Resumo

O armazenamento dos grãos de café sob condições ideais de temperatura e umidade relativa mantém por longos períodos de tempo a qualidade fisiológica para sua propagação. O objetivo desta pesquisa foi avaliar o efeito sobre a viabilidade das sementes em três ambientes com temperatura e umidade relativa contrastantes, durante 14 meses de armazenamento, por meio de: teste topográfico com tetracloreto de tetrazólio; germinação por emergência de radícula em caixas plásticas e contagem de mudas em um germinador de areia; e vigor por medidas morfométricas em mudas de Coffea arabica L. var Castillo®. Para a viabilidade das sementes, as categorias de coloração absoluta (A) e sem coloração (E) eram diferentes, independentemente dos ambientes e do efeito de armazenamento. O aparecimento de radículas e a germinação indicaram que a condição ambiental 10±2°C; 65±7% RH favorece uma maior proliferação de sementes com radículas e mudas emergentes (>75%) a 400 e 320 dias, respectivamente. Quanto à medição das variáveis morfométricas, apenas o comprimento do hipocótilo e da raiz axial mostrou uma tendência descritiva por tratamento e mês de armazenamento. A condição ambiental 10±2°C; 65±7% RH preservou a qualidade fisiológica das sementes para propagação durante quatro meses.

Biografia do autor (See)

Natalia Flechas-Bejarano, Cenicafé

Asistente de Investigación. Disciplina de Fisiología Vegetal, Centro Nacional de Investigaciones de Café, Cenicafé.

Rubén Medina-Rivera, Cenicafé

Investigador Científico II. Disciplina de Biometría, Centro Nacional de Investigaciones de Café, Cenicafé.

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