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Registro Completo |
Biblioteca(s): |
Embrapa Semiárido. |
Data corrente: |
22/08/2018 |
Data da última atualização: |
22/08/2018 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
FERREIRA, R. R.; SANTOS, C. A. F. |
Afiliação: |
R. R.R FERREIRA, UFRPE; CARLOS ANTONIO FERNANDES SANTOS, CPATSA. |
Título: |
Partial success of marker-assisted selection of A and B onion lines in Brazilian germplasm. |
Ano de publicação: |
2018 |
Fonte/Imprenta: |
Scientia Horticultuarae, v. 242, p. 110-115, 2018. |
DOI: |
10.1016/j.scienta.2018.08.002 |
Idioma: |
Inglês |
Conteúdo: |
This work aims to identify A and B onion lines in Brazilian germplasm, associating marker-assisted selection (MAS) of cytoplasm type and the Ms ocus with pollen viability analysis. MAS and pollen viability tests presented a complete agreement for the lines Alfa SF, BRS 367, BRS 367, Cascuda T7, Cascuda T5, EHCEB 20102017 and EHCEB 20142027. MAS was not validated by the pollen viability tests in some plants of the lines Alfa SF, EHCEB 20142028, EHCEB 20141028, EHCEB 20141027 e EHCEB 20141017. Plants with fertile pollen within a specific ?A? line were eliminated before anthesis. The methods used to evaluate pollen viability did not present agreement in the sterile and fertile classification in five onion accessions. Six pairs of A and B lines identified in the present study [Alfa SF (Tmsms) x Alfa SF (Nmsms), BRS 367 (Tmsms) x BRS 367 (Nmsms), Cascuda T7 (Nmsms) x Cascuda T5 (Smsms), EHCEB 20142027 (Nmsms) x 20141027 (Tmsms), EHCEB 20102017 (Nmsms) x EHCEB20141017 (Tmsms), and EHCEB 20142028 (Nmsms) x EHCEB 20141028 (Smsms)] have potential for onion hybrid development. |
Palavras-Chave: |
Male-sterile; Mantenedor; Pollen viability. |
Thesagro: |
Cebola; Germoplasma; Marcador Molecular; Melhoramento Genético Vegetal. |
Thesaurus Nal: |
Allium cepa var. cepa; Onions. |
Categoria do assunto: |
G Melhoramento Genético |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/181751/1/Carlo-2018.pdf
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Marc: |
LEADER 01840naa a2200253 a 4500 001 2094396 005 2018-08-22 008 2018 bl uuuu u00u1 u #d 024 7 $a10.1016/j.scienta.2018.08.002$2DOI 100 1 $aFERREIRA, R. R. 245 $aPartial success of marker-assisted selection of A and B onion lines in Brazilian germplasm.$h[electronic resource] 260 $c2018 520 $aThis work aims to identify A and B onion lines in Brazilian germplasm, associating marker-assisted selection (MAS) of cytoplasm type and the Ms ocus with pollen viability analysis. MAS and pollen viability tests presented a complete agreement for the lines Alfa SF, BRS 367, BRS 367, Cascuda T7, Cascuda T5, EHCEB 20102017 and EHCEB 20142027. MAS was not validated by the pollen viability tests in some plants of the lines Alfa SF, EHCEB 20142028, EHCEB 20141028, EHCEB 20141027 e EHCEB 20141017. Plants with fertile pollen within a specific ?A? line were eliminated before anthesis. The methods used to evaluate pollen viability did not present agreement in the sterile and fertile classification in five onion accessions. Six pairs of A and B lines identified in the present study [Alfa SF (Tmsms) x Alfa SF (Nmsms), BRS 367 (Tmsms) x BRS 367 (Nmsms), Cascuda T7 (Nmsms) x Cascuda T5 (Smsms), EHCEB 20142027 (Nmsms) x 20141027 (Tmsms), EHCEB 20102017 (Nmsms) x EHCEB20141017 (Tmsms), and EHCEB 20142028 (Nmsms) x EHCEB 20141028 (Smsms)] have potential for onion hybrid development. 650 $aAllium cepa var. cepa 650 $aOnions 650 $aCebola 650 $aGermoplasma 650 $aMarcador Molecular 650 $aMelhoramento Genético Vegetal 653 $aMale-sterile 653 $aMantenedor 653 $aPollen viability 700 1 $aSANTOS, C. A. F. 773 $tScientia Horticultuarae$gv. 242, p. 110-115, 2018.
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Embrapa Semiárido (CPATSA) |
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Registro Completo
Biblioteca(s): |
Embrapa Café. |
Data corrente: |
13/12/2019 |
Data da última atualização: |
13/12/2019 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
QUEIROZA, M. G. de; SILVA, T. G. F. da; ZOLNIER, S.; SOUZA, C. A. A. de; NETOD, S.; FERREIRA, W. P. M. |
Afiliação: |
Maria Gabriela de Queiroza, Universidade Federal de Viçosa - UFV/Departamento de Engenharia Agrícola; Thieres George Freire da Silva, Universidade Federal Rural de Pernambuco - UFPB/Departamento de Engenharia Agrícola; Sérgio Zolnier, Universidade Federal de Viçosa - UFV/Departamento de Engenharia Agrícola; Carlos André Alves de Souza, Universidade Federal Rural de Pernambuco - UFPB/Departamento de Engenharia Agrícola; Steidle Neto, Universidade Federal de São João Del-Rei/Departamento de Ciências Agrárias; WILLIAMS PINTO MARQUES FERREIRA, CNPCa. |
Título: |
Seasonal patterns of deposition litterfall in a seasonal dry tropical forest. |
Ano de publicação: |
2019 |
Fonte/Imprenta: |
Agricultural and Forest Meteorology, v. 279, artigo.107712, December 2019. |
Idioma: |
Inglês |
Conteúdo: |
The Caatinga Domain is exclusively Brazilian, covered by vegetation exhibiting a great diversity of species, which have morphological and physiological characteristics determined by environmental conditions. These attributes define quantity and quality litterfall deposition on the soil. The litterfall deposition seasonality was monitored a fragment of Caatinga vegetation, located in the semiarid region of Brazil, from 2016 to 2017. The decomposition rate, mean residence time for litterfall (50 and 95%), and the exportation of mineral nutrients via deciduous material were determined. Data from meteorological variables and litterfall were used in the elaboration of Pearson's correlation matrix, and multicollinearity, canonical and path analyzes. The Caatinga deposited on average 637 kg DM (dry mass) ha−1 year−1 litterfall, including 53% leaves, 26% twigs, 15% reproductive structures and 6% miscellanea, with deposition peaks between the months of March and July, with values above 57 kg MS ha−1. Global solar radiation, vapor pressure deficit, soil heat flux, rainfall and normalized difference vegetation index are controlling factors the litterfall deposition. The decomposition rate of the litterfall was 0.33 kg DM ha−1 year−1, while the time required for the disappearance of 50% and 95% of the litterfall was respectively 2.1 and 9.1 years, and the exportation of nutrients was 13.59 kg ha−1 year−1. Litterfall deposition was determined by the environmental conditions and physiological responses of the vegetation, which are fundamental to maintaining the Caatinga Domain. MenosThe Caatinga Domain is exclusively Brazilian, covered by vegetation exhibiting a great diversity of species, which have morphological and physiological characteristics determined by environmental conditions. These attributes define quantity and quality litterfall deposition on the soil. The litterfall deposition seasonality was monitored a fragment of Caatinga vegetation, located in the semiarid region of Brazil, from 2016 to 2017. The decomposition rate, mean residence time for litterfall (50 and 95%), and the exportation of mineral nutrients via deciduous material were determined. Data from meteorological variables and litterfall were used in the elaboration of Pearson's correlation matrix, and multicollinearity, canonical and path analyzes. The Caatinga deposited on average 637 kg DM (dry mass) ha−1 year−1 litterfall, including 53% leaves, 26% twigs, 15% reproductive structures and 6% miscellanea, with deposition peaks between the months of March and July, with values above 57 kg MS ha−1. Global solar radiation, vapor pressure deficit, soil heat flux, rainfall and normalized difference vegetation index are controlling factors the litterfall deposition. The decomposition rate of the litterfall was 0.33 kg DM ha−1 year−1, while the time required for the disappearance of 50% and 95% of the litterfall was respectively 2.1 and 9.1 years, and the exportation of nutrients was 13.59 kg ha−1 year−1. Litterfall deposition was determined by ... Mostrar Tudo |
Palavras-Chave: |
Environmental variables; Process of decomposition; Seasonal pattern; Semi-arid region. |
Thesagro: |
Caatinga. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/206995/1/Seasonal-patterns-of-deposition.pdf
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Marc: |
LEADER 02366naa a2200241 a 4500 001 2116840 005 2019-12-13 008 2019 bl uuuu u00u1 u #d 100 1 $aQUEIROZA, M. G. de 245 $aSeasonal patterns of deposition litterfall in a seasonal dry tropical forest.$h[electronic resource] 260 $c2019 520 $aThe Caatinga Domain is exclusively Brazilian, covered by vegetation exhibiting a great diversity of species, which have morphological and physiological characteristics determined by environmental conditions. These attributes define quantity and quality litterfall deposition on the soil. The litterfall deposition seasonality was monitored a fragment of Caatinga vegetation, located in the semiarid region of Brazil, from 2016 to 2017. The decomposition rate, mean residence time for litterfall (50 and 95%), and the exportation of mineral nutrients via deciduous material were determined. Data from meteorological variables and litterfall were used in the elaboration of Pearson's correlation matrix, and multicollinearity, canonical and path analyzes. The Caatinga deposited on average 637 kg DM (dry mass) ha−1 year−1 litterfall, including 53% leaves, 26% twigs, 15% reproductive structures and 6% miscellanea, with deposition peaks between the months of March and July, with values above 57 kg MS ha−1. Global solar radiation, vapor pressure deficit, soil heat flux, rainfall and normalized difference vegetation index are controlling factors the litterfall deposition. The decomposition rate of the litterfall was 0.33 kg DM ha−1 year−1, while the time required for the disappearance of 50% and 95% of the litterfall was respectively 2.1 and 9.1 years, and the exportation of nutrients was 13.59 kg ha−1 year−1. Litterfall deposition was determined by the environmental conditions and physiological responses of the vegetation, which are fundamental to maintaining the Caatinga Domain. 650 $aCaatinga 653 $aEnvironmental variables 653 $aProcess of decomposition 653 $aSeasonal pattern 653 $aSemi-arid region 700 1 $aSILVA, T. G. F. da 700 1 $aZOLNIER, S. 700 1 $aSOUZA, C. A. A. de 700 1 $aNETOD, S. 700 1 $aFERREIRA, W. P. M. 773 $tAgricultural and Forest Meteorology$gv. 279, artigo.107712, December 2019.
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