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Registro Completo |
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
14/03/2007 |
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Data da última atualização: |
22/04/2010 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
JORGE, M. H. A.; VEATH-BLOHM, M. E.; RAY, D. T. |
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Afiliação: |
Marçal Henrique Amici Jorge, Embrapa Pantanal; Maren E. Veatch-Blohm, The University of Arizona; Dennis T. Ray, The University of Arizona. |
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Título: |
Quality of guayule seeds separated by physical attributes. |
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Ano de publicação: |
2007 |
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Fonte/Imprenta: |
Separata de: Industrial Crops and Products, 25, p. 55-62, july. 2007. |
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Idioma: |
Inglês |
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Conteúdo: |
Guayule (Parthenium argentatum Gray) is being developed as a new commercial crop to be grown in arid and semiarid regions. Guayule stands are presently established using transplants; however, establishment by direct-seeding would reduce costs and make production more economical. A major difficulty in field establishment by direct-seeding is the variation in the quality of guayule seeds. Guayule seeds vary greatly in color, size, and weight, which are the attributes believed to be associated with the observed germination differences among and within seed lots. To determine the importance of these attributes, guayule seeds from different seed lots were separated by size (diameter) and color, each separation class was weighed and then seed quality determined by germination percentage and rate. X-ray analysis was used to distinguish filled from unfilled seeds, and this was related to the germination results. In six guayule breeding lines (N565, 11591, AZ-2, AZ-3, AZ-4, and AZ-5), the highest quality seeds were darker (opaque-black and gray), small to medium in diameter (1.4?1.6 mm), and were heavier (a greater proportion of filled seeds). Color appeared to be a more efficient separator for seed quality than seed size; however, separation by size may be acceptable on a large scale and still provide higher quality and more uniform seed lots. |
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Palavras-Chave: |
Direct-seeding; Parthenium argentatum gray; Seed color; Seed size; X-ray analysis. |
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Thesaurus Nal: |
seed quality. |
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Categoria do assunto: |
-- |
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URL: |
https://www.sciencedirect.com/science
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Marc: |
LEADER 01959naa a2200217 a 4500
001 1811868
005 2010-04-22
008 2007 bl --- 0-- u #d
100 1 $aJORGE, M. H. A.
245 $aQuality of guayule seeds separated by physical attributes.
260 $c2007
520 $aGuayule (Parthenium argentatum Gray) is being developed as a new commercial crop to be grown in arid and semiarid regions. Guayule stands are presently established using transplants; however, establishment by direct-seeding would reduce costs and make production more economical. A major difficulty in field establishment by direct-seeding is the variation in the quality of guayule seeds. Guayule seeds vary greatly in color, size, and weight, which are the attributes believed to be associated with the observed germination differences among and within seed lots. To determine the importance of these attributes, guayule seeds from different seed lots were separated by size (diameter) and color, each separation class was weighed and then seed quality determined by germination percentage and rate. X-ray analysis was used to distinguish filled from unfilled seeds, and this was related to the germination results. In six guayule breeding lines (N565, 11591, AZ-2, AZ-3, AZ-4, and AZ-5), the highest quality seeds were darker (opaque-black and gray), small to medium in diameter (1.4?1.6 mm), and were heavier (a greater proportion of filled seeds). Color appeared to be a more efficient separator for seed quality than seed size; however, separation by size may be acceptable on a large scale and still provide higher quality and more uniform seed lots.
650 $aseed quality
653 $aDirect-seeding
653 $aParthenium argentatum gray
653 $aSeed color
653 $aSeed size
653 $aX-ray analysis
700 1 $aVEATH-BLOHM, M. E.
700 1 $aRAY, D. T.
773 $tSeparata de: Industrial Crops and Products, 25, p. 55-62, july. 2007.
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Registro original: |
Embrapa Pantanal (CPAP) |
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Biblioteca |
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Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
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URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Meio-Norte. |
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Data corrente: |
29/03/2010 |
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Data da última atualização: |
07/11/2017 |
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Tipo da produção científica: |
Artigo em Anais de Congresso / Nota Técnica |
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Autoria: |
VILARINHO, A. A.; FREIRE FILHO, F. R.; ROCHA, M. de M.; RIBEIRO, V. Q. |
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Afiliação: |
Aloísio Alcântara Vilarinho, Embrapa Roraima; Francisco Rodrigues Freire Filho, Embrapa Meio-Norte; Maurisrael de Moura Rocha, Embrapa Meio-Norte; Valdenir Queiroz Ribeiro, Embrapa Meio-Norte. |
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Título: |
Desempenho de genótipos de feijão-caupi de porte ereto em Roraima na safra 2007. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
In: CONGRESSO NACIONAL DE FEIJÃO-CAUPI, 2., 2009, Belém, PA. Da agricultura de subsistência ao agronegócio: anais. Belém, PA: Embrapa Amazônia Oriental, 2009. |
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Páginas: |
p. 417-421 |
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Descrição Física: |
1 CD-ROM. |
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Idioma: |
Português |
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Conteúdo: |
Este trabalho teve como objetivo identificar, em um conjunto de 20 genótipos de feijão-caupi de porte ereto, aqueles mais produtivos, com boas características agronômicas e adaptados às condições de cultivo de Estado de Roraima. |
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Palavras-Chave: |
Adaptabilidade; Melhoramento genético. |
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Thesagro: |
Vigna Unguiculata. |
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Categoria do assunto: |
G Melhoramento Genético |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/166249/1/CONAC2p417.pdf
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Marc: |
LEADER 00927nam a2200193 a 4500
001 1662638
005 2017-11-07
008 2009 bl uuuu u00u1 u #d
100 1 $aVILARINHO, A. A.
245 $aDesempenho de genótipos de feijão-caupi de porte ereto em Roraima na safra 2007.
260 $aIn: CONGRESSO NACIONAL DE FEIJÃO-CAUPI, 2., 2009, Belém, PA. Da agricultura de subsistência ao agronegócio: anais. Belém, PA: Embrapa Amazônia Oriental$c2009
300 $ap. 417-421$c1 CD-ROM.
520 $aEste trabalho teve como objetivo identificar, em um conjunto de 20 genótipos de feijão-caupi de porte ereto, aqueles mais produtivos, com boas características agronômicas e adaptados às condições de cultivo de Estado de Roraima.
650 $aVigna Unguiculata
653 $aAdaptabilidade
653 $aMelhoramento genético
700 1 $aFREIRE FILHO, F. R.
700 1 $aROCHA, M. de M.
700 1 $aRIBEIRO, V. Q.
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Registro original: |
Embrapa Meio-Norte (CPAMN) |
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