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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
30/03/1995 |
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Data da última atualização: |
30/03/1995 |
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Autoria: |
PORTO, M. C. M.; ASIEDU, R.; DIXON, A.; HAHN, S. K. |
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Título: |
An agroecologically-oriented introduction of cassava germplasm from Latin America into Africa |
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Ano de publicação: |
1994 |
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Fonte/Imprenta: |
Wageninger, Netherlands: ISTRC, 1994. |
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Páginas: |
p.118-129 |
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ISBN: |
978-131-094-4 |
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Idioma: |
Inglês |
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Notas: |
In: Symposium of the International Society for Tropical Roots Crops, 9, 1991, Held at Accra, Ghana. Proceedings... |
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Conteúdo: |
An agroecologically-based germplasm enchancement strategy to further broaden the genetic base of cassava in selected ecologies of Africa was initiated by CIAT and IITA in 1990. Crosses are being made at CIAT, in Colombia, using parents adapted to four different agroecologies of South America with homologues in Africa. Selection of parents is made on the basis of resistance to pests and specific quality traits such as low cyanide content, yellow root flesh, and mealiness. Resistance to ACMD is being incorporated by using IITA elite clones introduced to CIAT as parents. To date, a total of 130 000 botanical seeds comprising 725 families have been introduced into Nigeria through IITA. Three seedling nurseries were established in 1990 at locations representing the subhumid (Ibadan), humid (Onne), and semi-arid (Kano) ecologies. In 1991, a nursery was also established in Jos, a midaltitude location, in Nigeria. Establishment of seedlings was successful even under severe environmental conditions such as those existing at Kano, where a dry period of 6 months was experienced by the seedlings. Reaction to pests and diseases and growth of individual seedlings were monitored at monthly intervals during 1990-91. Pressure of CBB and ACMV was higher at Ibadan between july and november, but general recovery of individual with symptoms of ACMD was observed during the dry season. A better reaction in the progenies resulting from the crosses involving IITA clones TMS 30001 and TMS 30572 was observed. MenosAn agroecologically-based germplasm enchancement strategy to further broaden the genetic base of cassava in selected ecologies of Africa was initiated by CIAT and IITA in 1990. Crosses are being made at CIAT, in Colombia, using parents adapted to four different agroecologies of South America with homologues in Africa. Selection of parents is made on the basis of resistance to pests and specific quality traits such as low cyanide content, yellow root flesh, and mealiness. Resistance to ACMD is being incorporated by using IITA elite clones introduced to CIAT as parents. To date, a total of 130 000 botanical seeds comprising 725 families have been introduced into Nigeria through IITA. Three seedling nurseries were established in 1990 at locations representing the subhumid (Ibadan), humid (Onne), and semi-arid (Kano) ecologies. In 1991, a nursery was also established in Jos, a midaltitude location, in Nigeria. Establishment of seedlings was successful even under severe environmental conditions such as those existing at Kano, where a dry period of 6 months was experienced by the seedlings. Reaction to pests and diseases and growth of individual seedlings were monitored at monthly intervals during 1990-91. Pressure of CBB and ACMV was higher at Ibadan between july and november, but general recovery of individual with symptoms of ACMD was observed during the dry season. A better reaction in the progenies resulting from the crosses involving IITA clones TMS 30001 and TMS 30572 was... Mostrar Tudo |
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Palavras-Chave: |
Bacterias; Cultivares; Germoplasmas. |
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Thesagro: |
Manihot Esculenta. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02249naa a2200241 a 4500
001 1644431
005 1995-03-30
008 1994 bl uuuu u00u1 u #d
020 $a978-131-094-4
100 1 $aPORTO, M. C. M.
245 $aAn agroecologically-oriented introduction of cassava germplasm from Latin America into Africa
260 $c1994
300 $ap.118-129
500 $aIn: Symposium of the International Society for Tropical Roots Crops, 9, 1991, Held at Accra, Ghana. Proceedings...
520 $aAn agroecologically-based germplasm enchancement strategy to further broaden the genetic base of cassava in selected ecologies of Africa was initiated by CIAT and IITA in 1990. Crosses are being made at CIAT, in Colombia, using parents adapted to four different agroecologies of South America with homologues in Africa. Selection of parents is made on the basis of resistance to pests and specific quality traits such as low cyanide content, yellow root flesh, and mealiness. Resistance to ACMD is being incorporated by using IITA elite clones introduced to CIAT as parents. To date, a total of 130 000 botanical seeds comprising 725 families have been introduced into Nigeria through IITA. Three seedling nurseries were established in 1990 at locations representing the subhumid (Ibadan), humid (Onne), and semi-arid (Kano) ecologies. In 1991, a nursery was also established in Jos, a midaltitude location, in Nigeria. Establishment of seedlings was successful even under severe environmental conditions such as those existing at Kano, where a dry period of 6 months was experienced by the seedlings. Reaction to pests and diseases and growth of individual seedlings were monitored at monthly intervals during 1990-91. Pressure of CBB and ACMV was higher at Ibadan between july and november, but general recovery of individual with symptoms of ACMD was observed during the dry season. A better reaction in the progenies resulting from the crosses involving IITA clones TMS 30001 and TMS 30572 was observed.
650 $aManihot Esculenta
653 $aBacterias
653 $aCultivares
653 $aGermoplasmas
700 1 $aASIEDU, R.
700 1 $aDIXON, A.
700 1 $aHAHN, S. K.
773 $tWageninger, Netherlands: ISTRC, 1994.
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Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
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Biblioteca |
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| Registros recuperados : 10 | |
| 2. |  | PORTO, M. C. M. Fisiologia da mandioca. Cruz das Almas: EMBRAPA-CNPMF, 1986. 21 p. VI Curso Intensivo Nacional de Mandioca realizado em Cruz das Almas, BA. 1986.| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 7. | | PORTO, M. C. M.; COCK, J. H.; CADENA, G. G. de; PARRA, G. E.; HERNÁNDEZ, A. D. P. Acúmulo e Distribuição de Matéria Seca em Mandioca Submetida a Deficiência Hídrica. Pesquisa Agropecuária Brasileira, Brasília, v. 24, n.5, p. 557.565, maio 1989| Biblioteca(s): Embrapa Unidades Centrais. |
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| 8. | | PORTO, M. C. M.; CARVALHO, J. E. B. de; MATTOS, P. L. P. de; MACEDO, M. C. M. Influência da parte da haste na propagação rápida da mandioca. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 14, n. 3, p. 251-253, jul. 1979 Título em inglês: Origin of the planting material and its influence on the rapid propagation method of cassava.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 10. | | CORSO, I. C.; SANTOS FILHO, J. M. dos; FONTANA, G.; PORTO, M. C. M.; ORREGO, F. I.; MOROSINI, S.; CAMPELLO, G. de J.; GALILEO, M. H. M.; RODRIGUES, A. L. Morfologia, nutricao e manejo da cultura da soja. Trigo e Soja, Porto Alegre, v. 1, n. 9, p. 3-19, fev. 1976.| Tipo: Artigo de Divulgação na Mídia |
| Biblioteca(s): Embrapa Soja. |
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| Registros recuperados : 10 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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