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Registro Completo |
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Biblioteca(s): |
Embrapa Amapá; Embrapa Cerrados; Embrapa Clima Temperado; Embrapa Semiárido; Embrapa Soja; Embrapa Trigo. |
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Data corrente: |
17/09/1993 |
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Data da última atualização: |
02/06/1998 |
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Autoria: |
PEREIRA, L. A. G. |
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Título: |
Comparisons of selected vigor tests for evaluating soybean seed quality. |
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Ano de publicação: |
1974 |
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Fonte/Imprenta: |
Mississippi: Mississippi State University, 1974. |
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Páginas: |
74p. |
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Idioma: |
Inglês |
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Notas: |
M.Sc. Thesis. |
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Conteúdo: |
Thirty-nine soybean seed lots consisting of Bragg, Lee 68, Dare, Davis and Hill were studied under laboratory and field conditions. For these studies the lots were taken either intact (orginal seeds) and visually separated into different components (sound seed, wrinkle-coated seed, mechanically danaged seed, green colored seed, insect damaged seed, diseased seed and other). Original seed were evaluated through field emergence and standard germination test (first and final counts). Separated seed were studied by field emergence, root growth test and tetrazolium test (Potential germination, energy 1 - 2 and energy 1 - 3). Field emergence was conducted through a randomized complete block design, consisting of four replications with 3 counting dates, 7, 14, and 21 days after planting. Results showed differences among varieties at p = 0.1 level of probability. Good agreement between field emergence and percentage of sound seed in a lot was observed. A multiple correlation coefficient of R = 0.921 was obtained between field emergence and first and final countings in standard germination test and percentages of each component of a seed lot. Green seed showed persistently high vigor indices in all tests. Characteristics pattern reaction to tetrazolium (TZ) staining were detected for good seed, wrinkle-coated seed, mechanically damaged and insect damaged seed. Since such a close agreement was obtained, a fairly good indication of emergence in the field would be given by the values of TZ energy 1 - 3. MenosThirty-nine soybean seed lots consisting of Bragg, Lee 68, Dare, Davis and Hill were studied under laboratory and field conditions. For these studies the lots were taken either intact (orginal seeds) and visually separated into different components (sound seed, wrinkle-coated seed, mechanically danaged seed, green colored seed, insect damaged seed, diseased seed and other). Original seed were evaluated through field emergence and standard germination test (first and final counts). Separated seed were studied by field emergence, root growth test and tetrazolium test (Potential germination, energy 1 - 2 and energy 1 - 3). Field emergence was conducted through a randomized complete block design, consisting of four replications with 3 counting dates, 7, 14, and 21 days after planting. Results showed differences among varieties at p = 0.1 level of probability. Good agreement between field emergence and percentage of sound seed in a lot was observed. A multiple correlation coefficient of R = 0.921 was obtained between field emergence and first and final countings in standard germination test and percentages of each component of a seed lot. Green seed showed persistently high vigor indices in all tests. Characteristics pattern reaction to tetrazolium (TZ) staining were detected for good seed, wrinkle-coated seed, mechanically damaged and insect damaged seed. Since such a close agreement was obtained, a fairly good indication of emergence in the field would be given by the values of... Mostrar Tudo |
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Palavras-Chave: |
Avaliacao; EUA; Evaluation; Growth; Quality; Seed longevity; Seed testing; Soybean; Test; Teste; Tetrazolium test; USA. |
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Thesagro: |
Crescimento; Germinação; Glycine Max; Qualidade; Raiz; Semente; Soja; Teste de Sementes; Teste de Tetrazólio; Teste de Vigor. |
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Thesaurus Nal: |
germination; roots; seed quality; seeds; soybeans; viability; vigor. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02646nam a2200481 a 4500
001 1562831
005 1998-06-02
008 1974 bl uuuu m 00u1 u #d
100 1 $aPEREIRA, L. A. G.
245 $aComparisons of selected vigor tests for evaluating soybean seed quality.
260 $aMississippi: Mississippi State University$c1974
300 $a74p.
500 $aM.Sc. Thesis.
520 $aThirty-nine soybean seed lots consisting of Bragg, Lee 68, Dare, Davis and Hill were studied under laboratory and field conditions. For these studies the lots were taken either intact (orginal seeds) and visually separated into different components (sound seed, wrinkle-coated seed, mechanically danaged seed, green colored seed, insect damaged seed, diseased seed and other). Original seed were evaluated through field emergence and standard germination test (first and final counts). Separated seed were studied by field emergence, root growth test and tetrazolium test (Potential germination, energy 1 - 2 and energy 1 - 3). Field emergence was conducted through a randomized complete block design, consisting of four replications with 3 counting dates, 7, 14, and 21 days after planting. Results showed differences among varieties at p = 0.1 level of probability. Good agreement between field emergence and percentage of sound seed in a lot was observed. A multiple correlation coefficient of R = 0.921 was obtained between field emergence and first and final countings in standard germination test and percentages of each component of a seed lot. Green seed showed persistently high vigor indices in all tests. Characteristics pattern reaction to tetrazolium (TZ) staining were detected for good seed, wrinkle-coated seed, mechanically damaged and insect damaged seed. Since such a close agreement was obtained, a fairly good indication of emergence in the field would be given by the values of TZ energy 1 - 3.
650 $agermination
650 $aroots
650 $aseed quality
650 $aseeds
650 $asoybeans
650 $aviability
650 $avigor
650 $aCrescimento
650 $aGerminação
650 $aGlycine Max
650 $aQualidade
650 $aRaiz
650 $aSemente
650 $aSoja
650 $aTeste de Sementes
650 $aTeste de Tetrazólio
650 $aTeste de Vigor
653 $aAvaliacao
653 $aEUA
653 $aEvaluation
653 $aGrowth
653 $aQuality
653 $aSeed longevity
653 $aSeed testing
653 $aSoybean
653 $aTest
653 $aTeste
653 $aTetrazolium test
653 $aUSA
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Registro original: |
Embrapa Cerrados (CPAC) |
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| Registros recuperados : 71 | |
| 9. |  | COSTA, N. P.; PEREIRA, L. A. G.; FRANÇA NETO, J. B.; HENNING, A. A.; YAMASHITA, J. Avaliação da qualidade da semente fiscalizada de soja, produzida nas safras agrícolas de 1976/77 e 1978/79, no estado do Paraná. In: SEMINÁRIO NACIONAL DE PESQUISA DE SOJA, 2., 1981, Brasília. Resumos... Londrina: Embrapa-CNPSo, 1981. p. 233-234.| Biblioteca(s): Embrapa Soja. |
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| 14. | | COSTA, N. P.; PEREIRA, L. A. G.; FRANCA NETO, J. B.; HENNING, A. A.; YAMASHITA, J. Avaliacao da qualidade da semente de soja produzida nas safras agricolas 1976/77 e 1978/79, no estado do Parana. In: SEMINARIO NACIONAL DE PESQUISA DE SOJA, 2., 1981, Brasilia. Anais... Londrina : EMBRAPA-CNPSo, 1982. v.1 p.557-573. (EMBRAPA-CNPSo. Documentos, 1).| Biblioteca(s): Embrapa Soja. |
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| 20. | | PEREIRA, L. A. G.; COSTA, N. P.; ALMEIDA, A. M. R.; GILIOLI, J. L. Efeito do tratamento de sementes de soja com fungicida e/ou antibiótico, sob condições desfavoráveis de umidade do solo, em relação à emergência. Fitpatologia Brasileira, Brasília, v. 5. n. 3, p. 438, out. 1980. Resumos apresentado no XIII Congresso da Sociedade Brasileira de Fitopatologia, Rio de Janeiro, RJ, jul. 1980.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Soja. |
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| Registros recuperados : 71 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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