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Registro Completo |
Biblioteca(s): |
Embrapa Semiárido. |
Data corrente: |
07/11/2016 |
Data da última atualização: |
20/02/2017 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
SANTOS, M. A. C. dos; REGO, M. M. do; QUEIROZ, M. A. de; DANTAS, B. F.; OTONI, W. C. |
Afiliação: |
MÁRCIA ADRIANA CARVALHO DOS SANTOS, UPB; MAILSON MONTEIRO DO REGO, UFPB; MANOEL ABILIO DE QUEIROZ, UNEB; BARBARA FRANCA DANTAS, CPATSA; WAGNER CAMPOS OTONI, UFV. |
Título: |
Synchronizing the in vitro germination of Psidium guineense Sw. seeds by means of osmotic priming. |
Ano de publicação: |
2016 |
Fonte/Imprenta: |
Revista Árvore, Viçosa, MG, v. 40, n. 4, p. 649-660, 2016. |
DOI: |
10.1590/0100-67622016000400008 |
Idioma: |
Inglês Português |
Conteúdo: |
The Brazilian guava (Psidium guineense Swartz) is seed-propagated and, being native to the Caatinga biome, may frequently have uneven germination.Thus, we aimed to evaluate the synchronization of the in vitro seed germination of three accessions of the Brazilian guava, using water, polyethyleneglycol (PEG 6000), and potassium nitrate (KNO3) at different potentials and times of osmotic priming. Seeds from three accessions of the Brazilian guava (Y85, Y93,and Y97) from the UNEB/BA Germplasm Active Bank were subjected to the following pretreatments: -0.6, -1.0, -1.4, and -1,8 MPa PEG 6000; 10 and 20% KNO3 for 24h; 10 and 20% KNO3for 48h; water for 24 and 48h; and non-primed seeds as the control. The experimental design was therefore a 10x3+1 factorial scheme. We assessed the germination percentage (G), mean germination time (MGT), germination speed (GS), and germination speed index (GSI). Data was subjected to analysis of variance followed by a means test (Duncan at 5% probability) and regression. There was interaction between the priming treatments and accessions for all evaluated features, except G. PEG 6000 decreased the MGT (from 6 to 8 days) and increased GS and GSI of seeds from all three accessions at potentials -1.0 to -1.5 MPa.Water-priming had a positive effect on MGT, GS, and GSI of accession Y85 seeds. KNO3 negatively affected germination of seeds from all three accessions. Thereby, we could synchronize seed germination of accessions Y85 and Y97 with PEG 6000. |
Palavras-Chave: |
Acessos de araçá; Brazilian guava; Germinação in vitro; Guava; Planta nativa; Psidium guineense Swartz. |
Thesagro: |
Araça; Caatinga; Germinação; Goiaba; Semente. |
Thesaurus Nal: |
Germination; Psidium guineense; Seeds. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal G Melhoramento Genético |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/153424/1/Barbara-1.pdf
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/149624/1/0100-6762-rarv-40-04-0649.pdf
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Marc: |
LEADER 02487naa a2200349 a 4500 001 2060998 005 2017-02-20 008 2016 bl uuuu u00u1 u #d 024 7 $a10.1590/0100-67622016000400008$2DOI 100 1 $aSANTOS, M. A. C. dos 245 $aSynchronizing the in vitro germination of Psidium guineense Sw. seeds by means of osmotic priming.$h[electronic resource] 260 $c2016 520 $aThe Brazilian guava (Psidium guineense Swartz) is seed-propagated and, being native to the Caatinga biome, may frequently have uneven germination.Thus, we aimed to evaluate the synchronization of the in vitro seed germination of three accessions of the Brazilian guava, using water, polyethyleneglycol (PEG 6000), and potassium nitrate (KNO3) at different potentials and times of osmotic priming. Seeds from three accessions of the Brazilian guava (Y85, Y93,and Y97) from the UNEB/BA Germplasm Active Bank were subjected to the following pretreatments: -0.6, -1.0, -1.4, and -1,8 MPa PEG 6000; 10 and 20% KNO3 for 24h; 10 and 20% KNO3for 48h; water for 24 and 48h; and non-primed seeds as the control. The experimental design was therefore a 10x3+1 factorial scheme. We assessed the germination percentage (G), mean germination time (MGT), germination speed (GS), and germination speed index (GSI). Data was subjected to analysis of variance followed by a means test (Duncan at 5% probability) and regression. There was interaction between the priming treatments and accessions for all evaluated features, except G. PEG 6000 decreased the MGT (from 6 to 8 days) and increased GS and GSI of seeds from all three accessions at potentials -1.0 to -1.5 MPa.Water-priming had a positive effect on MGT, GS, and GSI of accession Y85 seeds. KNO3 negatively affected germination of seeds from all three accessions. Thereby, we could synchronize seed germination of accessions Y85 and Y97 with PEG 6000. 650 $aGermination 650 $aPsidium guineense 650 $aSeeds 650 $aAraça 650 $aCaatinga 650 $aGerminação 650 $aGoiaba 650 $aSemente 653 $aAcessos de araçá 653 $aBrazilian guava 653 $aGerminação in vitro 653 $aGuava 653 $aPlanta nativa 653 $aPsidium guineense Swartz 700 1 $aREGO, M. M. do 700 1 $aQUEIROZ, M. A. de 700 1 $aDANTAS, B. F. 700 1 $aOTONI, W. C. 773 $tRevista Árvore, Viçosa, MG$gv. 40, n. 4, p. 649-660, 2016.
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Embrapa Semiárido (CPATSA) |
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Registro Completo
Biblioteca(s): |
Embrapa Meio Ambiente. |
Data corrente: |
06/03/2012 |
Data da última atualização: |
21/03/2012 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
KAVAMURA, V. N.; SANTOS, S. N.; SÁBER, M. L.; SILVA, J. L. da; PARMA, M. M.; DINI-ANDREOTE, F.; MELO, I. S. de. |
Afiliação: |
VANESSA NESSNER KAVAMURA, ESALQ-USP; SUIKINAI NOBRE SANTOS, ESALQ-USP; MÍRIAM LOBO SÁBER, ESALQ-USP; JOAO LUIZ DA SILVA, CNPMA; MARCIA MARIA PARMA, CNPMA; FERNANDO DINI-ANDREOTE, ESALQ-USP; ITAMAR SOARES DE MELO, CNPMA. |
Título: |
Screening de bactérias tolerantes à seca associadas a cactáceas da Caatinga. |
Ano de publicação: |
2011 |
Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE MICROBIOLOGIA, 26., 2011, Foz do Iguaçu. Anais... Foz do Iguaçu: Sociedade Brasileira de Microbiologia, 2011. Resumo 244-2. |
Idioma: |
Português |
Palavras-Chave: |
Cactácea. |
Thesagro: |
Caatinga. |
Thesaurus NAL: |
Screening; Stress tolerance. |
Categoria do assunto: |
V Taxonomia de Organismos |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/55175/1/2011RA028.pdf
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Marc: |
LEADER 00745nam a2200217 a 4500 001 1917677 005 2012-03-21 008 2011 bl uuuu u00u1 u #d 100 1 $aKAVAMURA, V. N. 245 $aScreening de bactérias tolerantes à seca associadas a cactáceas da Caatinga.$h[electronic resource] 260 $aIn: CONGRESSO BRASILEIRO DE MICROBIOLOGIA, 26., 2011, Foz do Iguaçu. Anais... Foz do Iguaçu: Sociedade Brasileira de Microbiologia, 2011. Resumo 244-2.$c2011 650 $aScreening 650 $aStress tolerance 650 $aCaatinga 653 $aCactácea 700 1 $aSANTOS, S. N. 700 1 $aSÁBER, M. L. 700 1 $aSILVA, J. L. da 700 1 $aPARMA, M. M. 700 1 $aDINI-ANDREOTE, F. 700 1 $aMELO, I. S. de
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