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Registro Completo |
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Biblioteca(s): |
Embrapa Agropecuária Oeste. |
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Data corrente: |
18/11/2003 |
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Data da última atualização: |
31/07/2013 |
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Autoria: |
SILVA, W. M. |
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Afiliação: |
Embrapa Agropecuária Oeste, Dourados, MS. |
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Título: |
Avaliação de extratores de fósforo disponível em dois latossolos do Mato Grosso do Sul. |
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Ano de publicação: |
1997 |
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Fonte/Imprenta: |
Dourados: Embrapa Agropecuária Oeste, 1997. |
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Páginas: |
2 p. |
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Idioma: |
Português |
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Notas: |
Trabalho apresentado no Seminário em 28.04.1997, na Embrapa Agropecuária Oeste, Dourados, MS. |
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Thesagro: |
Fosfato; Solo. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00497nam a2200145 a 4500
001 1246506
005 2013-07-31
008 1997 bl uuuu u0uu1 u #d
100 1 $aSILVA, W. M.
245 $aAvaliação de extratores de fósforo disponível em dois latossolos do Mato Grosso do Sul.
260 $aDourados: Embrapa Agropecuária Oeste$c1997
300 $a2 p.
500 $aTrabalho apresentado no Seminário em 28.04.1997, na Embrapa Agropecuária Oeste, Dourados, MS.
650 $aFosfato
650 $aSolo
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Embrapa Agropecuária Oeste (CPAO) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Mandioca e Fruticultura. Para informações adicionais entre em contato com cnpmf.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
25/01/2010 |
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Data da última atualização: |
29/05/2023 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
FUKUDA, W. M. G.; OLIVEIRA, L. A. de; PEREIRA, M. E. C.; CEBALLOS, H.; CARVALHO, J.; NUTTI, M.; RODRIGUEZ, M. A. D. |
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Afiliação: |
WANIA MARIA GONCALVES FUKUDA, CNPMF; LUCIANA ALVES DE OLIVEIRA, CNPMF; MARCIO EDUARDO CANTO PEREIRA, CNPMF; Hernan Ceballos, CIAT; José Luiz Viana de Carvalho, CTAA; Marília Regini Nutti, CTAA; MIGUEL ANGEL DITA RODRIGUEZ, CNPMF. |
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Título: |
Breeding cassava for enhancement of carotenoid in the biofortification program in Brazil. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
In: INTERNATIONAL MEETING OF THE MICRONUTRIENT FORUM, 2., 2009, Beijing, China. Micronutrients, health and development: evidence-based programs: program/abstracts. Washington, DC: USAID: Academy for Educational Development, 2009. p. 106. |
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Idioma: |
Inglês |
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Notas: |
TH25. |
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Conteúdo: |
This work aimed towards the improvement of the nutritional quality of cassava varieties regarding carotenoid, Fe and Zn contents, inside the HarvestPlus program scenario. Initially, a total of 1800 cassava accessions, from the germplasm bank at Embrapa Cassava & Tropical Fruits, were screened. Total carotenoid contents in one-year old roots of the 72 landraces selected ranged from 0.63 to 15.51 ìg.g-1 (fresh weight). However, it was detected that the accessions with higher carotenoid contents also presented elevated HCN levels. Thus, based on the low cyanogenic potential required for the consumption of boiled cassava roots (where carotenoid retention is higher), 7 landraces with carotenoid concentrations ranging from 1.50 to 4.49 ìg.g-1 were selected as parents. In the first generation (228 genotypes), hybrids with a carotenoid increment of more than 100% in relation to the parents were identified. Carotenoid levels in the population ranged from 0.87 to 10.47 ìg.g-1. Analyses of beta-carotenes revealed an approximated, but not linear, relation with the total carotenoid contents. In the second generation (136 hybrids), additional increment of carotenoid contents in relation to the first was verified, reaching the maxim concentration of 12.41 ìg.g-1. Regarding Fe and Zn contents, the 72 yellow landraces initially selected, as well as all the hybrids of the two generations, were evaluated by atomic absorption. Keeping low HCN and high carotenoid concentrations as priority, hybrids with more than 10 ìg.g-1 of carotenoids and with high levels of Zn and Fe were selected. These hybrids are currently under agronomical evaluations to be recommended as varieties. MenosThis work aimed towards the improvement of the nutritional quality of cassava varieties regarding carotenoid, Fe and Zn contents, inside the HarvestPlus program scenario. Initially, a total of 1800 cassava accessions, from the germplasm bank at Embrapa Cassava & Tropical Fruits, were screened. Total carotenoid contents in one-year old roots of the 72 landraces selected ranged from 0.63 to 15.51 ìg.g-1 (fresh weight). However, it was detected that the accessions with higher carotenoid contents also presented elevated HCN levels. Thus, based on the low cyanogenic potential required for the consumption of boiled cassava roots (where carotenoid retention is higher), 7 landraces with carotenoid concentrations ranging from 1.50 to 4.49 ìg.g-1 were selected as parents. In the first generation (228 genotypes), hybrids with a carotenoid increment of more than 100% in relation to the parents were identified. Carotenoid levels in the population ranged from 0.87 to 10.47 ìg.g-1. Analyses of beta-carotenes revealed an approximated, but not linear, relation with the total carotenoid contents. In the second generation (136 hybrids), additional increment of carotenoid contents in relation to the first was verified, reaching the maxim concentration of 12.41 ìg.g-1. Regarding Fe and Zn contents, the 72 yellow landraces initially selected, as well as all the hybrids of the two generations, were evaluated by atomic absorption. Keeping low HCN and high carotenoid concentrations as priority, hybr... Mostrar Tudo |
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Palavras-Chave: |
Biofortification program; Carotenoid; Manihot esculenta Crantz. |
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Categoria do assunto: |
G Melhoramento Genético |
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Marc: |
LEADER 02544nam a2200229 a 4500
001 1656549
005 2023-05-29
008 2009 bl uuuu u01u1 u #d
100 1 $aFUKUDA, W. M. G.
245 $aBreeding cassava for enhancement of carotenoid in the biofortification program in Brazil.
260 $aIn: INTERNATIONAL MEETING OF THE MICRONUTRIENT FORUM, 2., 2009, Beijing, China. Micronutrients, health and development: evidence-based programs: program/abstracts. Washington, DC: USAID: Academy for Educational Development, 2009. p. 106.$c2009
500 $aTH25.
520 $aThis work aimed towards the improvement of the nutritional quality of cassava varieties regarding carotenoid, Fe and Zn contents, inside the HarvestPlus program scenario. Initially, a total of 1800 cassava accessions, from the germplasm bank at Embrapa Cassava & Tropical Fruits, were screened. Total carotenoid contents in one-year old roots of the 72 landraces selected ranged from 0.63 to 15.51 ìg.g-1 (fresh weight). However, it was detected that the accessions with higher carotenoid contents also presented elevated HCN levels. Thus, based on the low cyanogenic potential required for the consumption of boiled cassava roots (where carotenoid retention is higher), 7 landraces with carotenoid concentrations ranging from 1.50 to 4.49 ìg.g-1 were selected as parents. In the first generation (228 genotypes), hybrids with a carotenoid increment of more than 100% in relation to the parents were identified. Carotenoid levels in the population ranged from 0.87 to 10.47 ìg.g-1. Analyses of beta-carotenes revealed an approximated, but not linear, relation with the total carotenoid contents. In the second generation (136 hybrids), additional increment of carotenoid contents in relation to the first was verified, reaching the maxim concentration of 12.41 ìg.g-1. Regarding Fe and Zn contents, the 72 yellow landraces initially selected, as well as all the hybrids of the two generations, were evaluated by atomic absorption. Keeping low HCN and high carotenoid concentrations as priority, hybrids with more than 10 ìg.g-1 of carotenoids and with high levels of Zn and Fe were selected. These hybrids are currently under agronomical evaluations to be recommended as varieties.
653 $aBiofortification program
653 $aCarotenoid
653 $aManihot esculenta Crantz
700 1 $aOLIVEIRA, L. A. de
700 1 $aPEREIRA, M. E. C.
700 1 $aCEBALLOS, H.
700 1 $aCARVALHO, J.
700 1 $aNUTTI, M.
700 1 $aRODRIGUEZ, M. A. D.
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