| Registro completo |
| Provedor de dados: |
Horticultura Brasileira
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| País: |
Brazil
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| Título: |
Ethylene and 1-methylcyclopropene action over senescence of nasturtium flowers
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| Autores: |
Silva,Tania P
Finger,Fernando L
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| Data: |
2015-12-01
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| Ano: |
2015
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| Palavras-chave: |
Tropaeolum majus
Phytohormone
Post-harvest
Phenological stages.
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| Resumo: |
ABSTRACT: This work describes ethylene and 1-methylcyclopropene (1-MCP) action on post-harvest shelf life of four development stages of nasturtium flowers. To reach this goal, we carried out three experiments. In the first and second experiments, we studied five ethylene (0; 0.1; 1; 10; 100 and 1000 μL/L) and three 1-MCP concentrations (0.25; 0.5 and 0.75 μL/L), respectively. In the third experiment, 1-MCP was followed by combined with ethylene (only 1-MCP; only ethylene; and 24 hours of exposure to 0.75 μL/L 1-MCP followed by 24 hours of exposure to 100 μL/L ethylene). All experiments had two control treatments, one keeping non-exposed flowers inside and another outside exposure chambers. Experiments were set in factorial design, in complete blocks at random, with four 10-flower replications each. Flower senescence was determined by a pre-established visual scale and by observing floral bud development. Ethylene dose above 10 μL/L induced flower wilting and premature senescence from the second floral development stage. Furthermore, higher concentrations of exogenous ethylene promoted irregular flower opening and/or morphological abnormalities in opened flowers. 1-MCP effectively extended post-harvest longevity of nasturtium flowers, independent of the concentration and even in the presence of exogenous ethylene.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362015000400453
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| Editor: |
Associação Brasileira de Horticultura
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| Relação: |
10.1590/S0102-053620150000400008
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| Formato: |
text/html
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| Fonte: |
Horticultura Brasileira v.33 n.4 2015
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| Direitos: |
info:eu-repo/semantics/openAccess
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