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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
03/08/1993 |
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Data da última atualização: |
07/10/2004 |
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Autoria: |
JOHNSON, R. R. |
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Afiliação: |
Dept. of Agronomy, University of Illinois, Urbana, IL 61801. |
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Título: |
Soybean vigor tests - what do they mean? |
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Ano de publicação: |
1977 |
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Fonte/Imprenta: |
In: SOYBEAN SEED RESEARCH CONFERENCE, 7., 1977, Chicago. Report. Washington : ASTA, 1977. p.74-84. (ASTA. Publication, 7). |
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Idioma: |
Inglês |
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Conteúdo: |
1) Field emergence and seedling survival of identical seed lots differ markedly due to differences in seedbed stress. Laboratory vigor tests should thus be based on ranking seed lots in terms of their ability to perform under stress. 2) Stress seedbeds were found to be associated with cool temperatures, soil crusting, lack of moisture, and herbicide treatment. 3) Seed lots may have an acceptable warm germination test, but a low vigor test. When low vigor seed results in reduced yield, it is generally associated with reduced and/or uneven stands. 5) Of the tests researched herein, the cold test was the most consistent test for ranking the field performance of seed lots under stress seedbed conditions. 6) One or more of the vigor tests should be of use to seedsmen and farmers in identifying potential problem seed lots. |
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Palavras-Chave: |
EUA; Soybean; Test; Teste; USA; Viabilidade; Yield. |
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Thesagro: |
Rendimento; Soja. |
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Thesaurus Nal: |
viability; vigor. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01469naa a2200253 a 4500
001 1453255
005 2004-10-07
008 1977 bl uuuu u00u1 u #d
100 1 $aJOHNSON, R. R.
245 $aSoybean vigor tests - what do they mean?
260 $c1977
520 $a1) Field emergence and seedling survival of identical seed lots differ markedly due to differences in seedbed stress. Laboratory vigor tests should thus be based on ranking seed lots in terms of their ability to perform under stress. 2) Stress seedbeds were found to be associated with cool temperatures, soil crusting, lack of moisture, and herbicide treatment. 3) Seed lots may have an acceptable warm germination test, but a low vigor test. When low vigor seed results in reduced yield, it is generally associated with reduced and/or uneven stands. 5) Of the tests researched herein, the cold test was the most consistent test for ranking the field performance of seed lots under stress seedbed conditions. 6) One or more of the vigor tests should be of use to seedsmen and farmers in identifying potential problem seed lots.
650 $aviability
650 $avigor
650 $aRendimento
650 $aSoja
653 $aEUA
653 $aSoybean
653 $aTest
653 $aTeste
653 $aUSA
653 $aViabilidade
653 $aYield
773 $tIn: SOYBEAN SEED RESEARCH CONFERENCE, 7., 1977, Chicago. Report. Washington : ASTA, 1977. p.74-84. (ASTA. Publication, 7).
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| 2. |  | CARVALHO, J. O. M. Agroecologia em Rondônia. Clic News, 09 dez. 2008. Meta 2008.
Demais veículos em que o artigo foi publicado: Boletim Pecuário; Notícia na Hora; Maxpress.| Tipo: Artigo de Divulgação na Mídia |
| Biblioteca(s): Embrapa Rondônia. |
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| 20. | | DUARTE, J. O. Situação da cultura do sorgo no Brasil. In: EMBRAPA. Centro de Nacional de Pesquisa de Milho e Sorgo. Relatório técnico anual do Centro Nacional de Pesquisa de Milho e Sorgo: período 1992-1993. Sete Lagoas, 1994. v. 6, p. 13-14.| Biblioteca(s): Embrapa Milho e Sorgo. |
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