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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agrobiologia. Para informações adicionais entre em contato com cnpab.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
11/03/2021 |
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Data da última atualização: |
03/01/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
FREIRE, J. M.; ROUWS, J. R. C.; BREIER, T. B.; ATAÍDE, G. M. |
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Afiliação: |
JULIANA MULLER FREIRE, CNPAB; JANAINA RIBEIRO COSTA ROUWS, CNPAB; T. B. BREIER, UFRRJ; G. M. ATAÍDE, UFSJ. |
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Título: |
Drying and storage of Melanoxylon brauna Schott. seeds. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Brazilian Journal of Biology, v. 81 n. 2, Jan./May, 2021. |
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ISSN: |
1678-4375 |
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DOI: |
https://doi.org/10.1590/1519-6984.232578 |
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Idioma: |
Inglês |
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Notas: |
Título em Português: Secagem e armazenamento de sementes de Melanoxylon brauna Schott. Epub Sep 04, 2020. |
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Conteúdo: |
The objective of this work was to evaluate the sensitivity of Melanoxylon brauna Schott. tree legume seeds to desiccation and storage. In the drying experiment, the Melanoxylon brauna seeds were submitted to two drying conditions: a forced air circulation chamber (40.18 °C ± 0.13 and 28.48% ± 3.95 RH) and a silica gel desiccator (27.19 °C ± 1.28 and 26.19% ± 0.94 RH) for different times (0, 12, 24, 36, 72, and 144 hours). A completely randomized design in a 2 (drying methods) × 5 (drying times) factorial scheme plus control and 4 replications of 25 seeds was used. The following variables were evaluated before and after drying: seed moisture content, percentage of germinated seeds, germination speed index, percentage of mortality, normal and abnormal seedlings. In the storage experiment the seeds were divided into two batches: pre-dried (at 5.0% humidity) and without drying (control at 8.9% humidity). The seeds were then stored in plastic bags in three environments: refrigerator at 5 °C, freezer at –20 °C and room temperature (29 °C). The seeds were removed every four months and submitted to the humidity and germination test for 24 months. Data from this storage experiment were analyzed considering a randomized block design in a 2 (drying levels: presence and absence) × 3 (storage environments: refrigerator, freezer or room temperature) factorial scheme + 2 controls (with and without drying at baseline) and 4 repetitions of 25 seeds. Drying reduced initial seed water content from 8.9% to 5.0%, without loss of viability. Drying in the chamber at 40 °C was faster and more efficient than in silica gel. The results enable classifying the seeds of this species as orthodox, i.e. tolerant to desiccation. The fridge and freezer were efficient for storing the Melanoxylon brauna seeds up to 24 months, independent of previous drying, while storing the seeds at room temperature with previous drying makes them last longer than without drying, as the seeds can last up to 16 months with drying, or 12 months without drying. MenosThe objective of this work was to evaluate the sensitivity of Melanoxylon brauna Schott. tree legume seeds to desiccation and storage. In the drying experiment, the Melanoxylon brauna seeds were submitted to two drying conditions: a forced air circulation chamber (40.18 °C ± 0.13 and 28.48% ± 3.95 RH) and a silica gel desiccator (27.19 °C ± 1.28 and 26.19% ± 0.94 RH) for different times (0, 12, 24, 36, 72, and 144 hours). A completely randomized design in a 2 (drying methods) × 5 (drying times) factorial scheme plus control and 4 replications of 25 seeds was used. The following variables were evaluated before and after drying: seed moisture content, percentage of germinated seeds, germination speed index, percentage of mortality, normal and abnormal seedlings. In the storage experiment the seeds were divided into two batches: pre-dried (at 5.0% humidity) and without drying (control at 8.9% humidity). The seeds were then stored in plastic bags in three environments: refrigerator at 5 °C, freezer at –20 °C and room temperature (29 °C). The seeds were removed every four months and submitted to the humidity and germination test for 24 months. Data from this storage experiment were analyzed considering a randomized block design in a 2 (drying levels: presence and absence) × 3 (storage environments: refrigerator, freezer or room temperature) factorial scheme + 2 controls (with and without drying at baseline) and 4 repetitions of 25 seeds. Drying reduced initial seed water content ... Mostrar Tudo |
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Palavras-Chave: |
Orthodox; Seed technology. |
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Thesagro: |
Brauna Preta; Melanoxylon Brauna. |
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Thesaurus Nal: |
Conservation plants; Fabaceae. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02902naa a2200265 a 4500
001 2130622
005 2022-01-03
008 2021 bl uuuu u00u1 u #d
022 $a1678-4375
024 7 $ahttps://doi.org/10.1590/1519-6984.232578$2DOI
100 1 $aFREIRE, J. M.
245 $aDrying and storage of Melanoxylon brauna Schott. seeds.$h[electronic resource]
260 $c2021
500 $aTítulo em Português: Secagem e armazenamento de sementes de Melanoxylon brauna Schott. Epub Sep 04, 2020.
520 $aThe objective of this work was to evaluate the sensitivity of Melanoxylon brauna Schott. tree legume seeds to desiccation and storage. In the drying experiment, the Melanoxylon brauna seeds were submitted to two drying conditions: a forced air circulation chamber (40.18 °C ± 0.13 and 28.48% ± 3.95 RH) and a silica gel desiccator (27.19 °C ± 1.28 and 26.19% ± 0.94 RH) for different times (0, 12, 24, 36, 72, and 144 hours). A completely randomized design in a 2 (drying methods) × 5 (drying times) factorial scheme plus control and 4 replications of 25 seeds was used. The following variables were evaluated before and after drying: seed moisture content, percentage of germinated seeds, germination speed index, percentage of mortality, normal and abnormal seedlings. In the storage experiment the seeds were divided into two batches: pre-dried (at 5.0% humidity) and without drying (control at 8.9% humidity). The seeds were then stored in plastic bags in three environments: refrigerator at 5 °C, freezer at –20 °C and room temperature (29 °C). The seeds were removed every four months and submitted to the humidity and germination test for 24 months. Data from this storage experiment were analyzed considering a randomized block design in a 2 (drying levels: presence and absence) × 3 (storage environments: refrigerator, freezer or room temperature) factorial scheme + 2 controls (with and without drying at baseline) and 4 repetitions of 25 seeds. Drying reduced initial seed water content from 8.9% to 5.0%, without loss of viability. Drying in the chamber at 40 °C was faster and more efficient than in silica gel. The results enable classifying the seeds of this species as orthodox, i.e. tolerant to desiccation. The fridge and freezer were efficient for storing the Melanoxylon brauna seeds up to 24 months, independent of previous drying, while storing the seeds at room temperature with previous drying makes them last longer than without drying, as the seeds can last up to 16 months with drying, or 12 months without drying.
650 $aConservation plants
650 $aFabaceae
650 $aBrauna Preta
650 $aMelanoxylon Brauna
653 $aOrthodox
653 $aSeed technology
700 1 $aROUWS, J. R. C.
700 1 $aBREIER, T. B.
700 1 $aATAÍDE, G. M.
773 $tBrazilian Journal of Biology$gv. 81 n. 2, Jan./May, 2021.
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Embrapa Agrobiologia (CNPAB) |
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