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Registro Completo |
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Biblioteca(s): |
Embrapa Agroindústria Tropical. |
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Data corrente: |
09/05/1994 |
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Data da última atualização: |
09/05/1994 |
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Autoria: |
DUNSTAN, D. I.; SHORT, K. C. Allium cepa. |
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Título: |
Improved growth of tissue cultures of the onion. |
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Ano de publicação: |
1977 |
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Fonte/Imprenta: |
Physiologia Plantarum, v.41, p.70-72, 1977. |
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Idioma: |
Inglês |
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Conteúdo: |
A forty-fold increase in tissue fresh weight has been achieved for Allium cepa stem tissue callus grown on a modified B5 medium with increased ammonium, phosphate and nitrogen levels; and decreased level of 2,4-dichlorophenoxyacetic acid. Growth was examined on several standard media, using fresh weight, dry weight and cell number as parameters over an 8-week growth period. Further, tissue grown upon this medium is more friable than onother media. The value of such friable callus for suspension culture initiation and for single cell cloning experimnts is discussed. |
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Palavras-Chave: |
Crescimento vegetativo. |
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Thesagro: |
Allium Cepa; Cebola; Cultura de Tecido. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01053naa a2200181 a 4500
001 1418048
005 1994-05-09
008 1977 bl --- 0-- u #d
100 1 $aDUNSTAN, D. I.
245 $aImproved growth of tissue cultures of the onion.
260 $c1977
520 $aA forty-fold increase in tissue fresh weight has been achieved for Allium cepa stem tissue callus grown on a modified B5 medium with increased ammonium, phosphate and nitrogen levels; and decreased level of 2,4-dichlorophenoxyacetic acid. Growth was examined on several standard media, using fresh weight, dry weight and cell number as parameters over an 8-week growth period. Further, tissue grown upon this medium is more friable than onother media. The value of such friable callus for suspension culture initiation and for single cell cloning experimnts is discussed.
650 $aAllium Cepa
650 $aCebola
650 $aCultura de Tecido
653 $aCrescimento vegetativo
700 1 $aSHORT, K. C. Allium cepa.
773 $tPhysiologia Plantarum$gv.41, p.70-72, 1977.
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Registro original: |
Embrapa Agroindústria Tropical (CNPAT) |
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Registro Completo
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Biblioteca(s): |
Embrapa Arroz e Feijão; Embrapa Milho e Sorgo. |
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Data corrente: |
08/02/2011 |
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Data da última atualização: |
01/04/2013 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
CARVALHO, M. C. S.; FERREIRA, A. C. B.; SANTOS, F. C. |
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Afiliação: |
MARIA DA CONCEICAO SANTANA CARVALHO, CNPAF; ALEXANDRE CUNHA DE B FERREIRA, CNPA; FLAVIA CRISTINA DOS SANTOS, CNPMS. |
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Título: |
Timing of nitrogen fertilizer application in no-tillage cotton in Brazil. |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
In: WORLD FERTILIZER CONGRESS OF THE INTERNATIONAL SCIENTIFIC CENTRE FOR FERTILIZERS, 15., 2010, Bucharest. Meeting the fertilizer demand on a changing globe: biofuels, climate change, and contaminants. Bucharest: Academiei Române: The Publishing House of the Romanian Academy, 2010. |
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Idioma: |
Inglês |
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Conteúdo: |
This study aimed at evaluating the agronomic efficiency of nitrogen (N) fertilizers blended with urease inhibitor, nitrification inhibitor, and a slow-release polymer applied at different times in a no-till cotton crop as well as the possibility of reducing the number of broadcast applications using conventional and alternative N sources. The experiment was carried out in a complete randomized block design with four replications, in a (6x4)+1 factorial arrangement: six N sources (ammonium nitrate; urea; 50% urea + 50% ammonium sulfate; urea + urease inhibitor - NBPT; urea + slow-release polymer; and ammonium sulfonitrate + nitrification inhibitor - dimetil pirazol phosphate), four times of broadcast application (100% right after emergence; 50% right after emergence + 50% in phase B1 - first floral bud; 100% in phase B1; and 50% in phase B1 + 50% in phase F1 - first flower), and one control. None of the alternative N sources tested resulted in yields higher than the conventional sources (urea, ammonium nitrate, and ammonium sulfate). The highest yield was achieved when the N was applied earlier and split into two applications (50% right after emergence + 50% in phase B1). Single N application was more efficient only when using urea + slow-release polymer. |
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Thesagro: |
Algodão; Fertilizante; Nitrogênio; Urease. |
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Categoria do assunto: |
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F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/28654/1/mcsc.pdf
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Marc: |
LEADER 02031nam a2200181 a 4500
001 1879073
005 2013-04-01
008 2010 bl uuuu u00u1 u #d
100 1 $aCARVALHO, M. C. S.
245 $aTiming of nitrogen fertilizer application in no-tillage cotton in Brazil.$h[electronic resource]
260 $aIn: WORLD FERTILIZER CONGRESS OF THE INTERNATIONAL SCIENTIFIC CENTRE FOR FERTILIZERS, 15., 2010, Bucharest. Meeting the fertilizer demand on a changing globe: biofuels, climate change, and contaminants. Bucharest: Academiei Române: The Publishing House of the Romanian Academy$c2010
520 $aThis study aimed at evaluating the agronomic efficiency of nitrogen (N) fertilizers blended with urease inhibitor, nitrification inhibitor, and a slow-release polymer applied at different times in a no-till cotton crop as well as the possibility of reducing the number of broadcast applications using conventional and alternative N sources. The experiment was carried out in a complete randomized block design with four replications, in a (6x4)+1 factorial arrangement: six N sources (ammonium nitrate; urea; 50% urea + 50% ammonium sulfate; urea + urease inhibitor - NBPT; urea + slow-release polymer; and ammonium sulfonitrate + nitrification inhibitor - dimetil pirazol phosphate), four times of broadcast application (100% right after emergence; 50% right after emergence + 50% in phase B1 - first floral bud; 100% in phase B1; and 50% in phase B1 + 50% in phase F1 - first flower), and one control. None of the alternative N sources tested resulted in yields higher than the conventional sources (urea, ammonium nitrate, and ammonium sulfate). The highest yield was achieved when the N was applied earlier and split into two applications (50% right after emergence + 50% in phase B1). Single N application was more efficient only when using urea + slow-release polymer.
650 $aAlgodão
650 $aFertilizante
650 $aNitrogênio
650 $aUrease
700 1 $aFERREIRA, A. C. B.
700 1 $aSANTOS, F. C.
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Embrapa Arroz e Feijão (CNPAF) |
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