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| Registros recuperados : 283 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
13/07/2023 |
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Data da última atualização: |
13/07/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
GOMES, S. E. V.; GOMES, R. A.; DANTAS, B. F. |
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Afiliação: |
SAMARA ELIZABETH VIEIRA GOMES, Universidade do Estado da Bahia, Departamento de Tecnologia e Ciências Sociais, Juazeiro, BA; RAQUEL ARAUJO GOMES, Universidade Estadual de Feira de Santana, Feira de Santana, BA; BARBARA FRANCA DANTAS, CPATSA. |
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Título: |
Climate and seed size of a dry forest species: influence on seed production, physiological quality, and tolerance to abiotic stresses. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Journal of Seed Science, v. 45, e202345013, 2023. |
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ISSN: |
2317-1545 |
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DOI: |
https://doi.org/10.1590/2317-1545v45264166 |
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Idioma: |
Inglês |
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Conteúdo: |
Seed production, quality and germination are likely to be affected by a drastic climate change in semi-arid areas predicted for the end of the century. We evaluated Anadenanthera colubrina var. cebil (Griseb.) Altschu (Fabaceae) seeds of different sizes, populations and harvest years for germination and tolerance to environmental stresses aiming to predict impacts of future climate. Seeds were accessed for germination temperature, salinity and osmotic limits and requirements. Germination of large and small seeds harvested in different populations was evaluated in optimum and stressful temperature, salinity and water deficit. A glasshouse pot assay tested weekly irrigation regimes and seedlings emergence and growth. Optimal temperature for seeds germination was 34.8 oC and limits were 5.6 oC and 50.9 oC. Large and small-sized seeds do not differ in germination, however small seeds are more efficient in stressful conditions. Seedlings can emerge and grow under small weekly irrigation for four months. The predicted increase in temperature will not impair germination, however, the time available for seedling establishment will decrease due to lacking rainfall. The increase in the amount of small-sized seeds produced in drought years is a strategy for coping with harsh environments, rather than a decrease in seed quality. |
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Palavras-Chave: |
Estresse abiotico; Estresse ambiental; Sementes de angico; Soma térmica. |
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Thesagro: |
Germinação; Irrigação; Mudança Climática; Semente. |
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Thesaurus NAL: |
Climate change; Germination; Seeds. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1154933/1/Climate-and-seed-size-of-a-dry-forest-species-influence.2023.pdf
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Marc: |
LEADER 02251naa a2200301 a 4500
001 2154933
005 2023-07-13
008 2023 bl uuuu u00u1 u #d
022 $a2317-1545
024 7 $ahttps://doi.org/10.1590/2317-1545v45264166$2DOI
100 1 $aGOMES, S. E. V.
245 $aClimate and seed size of a dry forest species$binfluence on seed production, physiological quality, and tolerance to abiotic stresses.$h[electronic resource]
260 $c2023
520 $aSeed production, quality and germination are likely to be affected by a drastic climate change in semi-arid areas predicted for the end of the century. We evaluated Anadenanthera colubrina var. cebil (Griseb.) Altschu (Fabaceae) seeds of different sizes, populations and harvest years for germination and tolerance to environmental stresses aiming to predict impacts of future climate. Seeds were accessed for germination temperature, salinity and osmotic limits and requirements. Germination of large and small seeds harvested in different populations was evaluated in optimum and stressful temperature, salinity and water deficit. A glasshouse pot assay tested weekly irrigation regimes and seedlings emergence and growth. Optimal temperature for seeds germination was 34.8 oC and limits were 5.6 oC and 50.9 oC. Large and small-sized seeds do not differ in germination, however small seeds are more efficient in stressful conditions. Seedlings can emerge and grow under small weekly irrigation for four months. The predicted increase in temperature will not impair germination, however, the time available for seedling establishment will decrease due to lacking rainfall. The increase in the amount of small-sized seeds produced in drought years is a strategy for coping with harsh environments, rather than a decrease in seed quality.
650 $aClimate change
650 $aGermination
650 $aSeeds
650 $aGerminação
650 $aIrrigação
650 $aMudança Climática
650 $aSemente
653 $aEstresse abiotico
653 $aEstresse ambiental
653 $aSementes de angico
653 $aSoma térmica
700 1 $aGOMES, R. A.
700 1 $aDANTAS, B. F.
773 $tJournal of Seed Science$gv. 45, e202345013, 2023.
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Embrapa Semiárido (CPATSA) |
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