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Registro Completo |
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Biblioteca(s): |
Embrapa Meio-Norte. |
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Data corrente: |
24/11/1999 |
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Data da última atualização: |
24/11/1999 |
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Autoria: |
NTARE, B. R.; REDDEN, R. J.; SINGH, B. B.; AKEN'OVA, M. E. |
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Título: |
Evaluation of early generation selection procedures for yield in cowpea (Vigna unguiculata (L.) Walp.). |
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Ano de publicação: |
1984 |
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Fonte/Imprenta: |
Field Crops Research, v. 9, p. 91-100, 1984. |
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Idioma: |
Inglês |
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Conteúdo: |
The objectives of the study were to evaluate early-generation selection procedures for their effectiveness in isolating high-yielding lines and to ascertain the relationship between yield performance in early generation and later generations. Four selection procedures viz: single plant selection, single plant bulk, bulk single plant and selected bulk were used based on F3 yield evaluation. Lines arising from these procedures in six crosses were compared in F3 for yield performance. Unselected lines were used as control. The differences among the four selection procedures with respect to grain yield were not significant. However, the most high-yielding lines were from the SPS procedure. The SB procedure gave the lowest number of high-yielding lines but required the least amount of land. The mean yields of F3 lines and bulks and the yields of F5 and F8 derived lines were significantly correlated. |
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Palavras-Chave: |
Caupi; Cowpea; Selection procedures. |
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Thesagro: |
Produtividade; Seleção; Vigna Unguiculata. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01540naa a2200229 a 4500
001 1056478
005 1999-11-24
008 1984 bl --- 0-- u #d
100 1 $aNTARE, B. R.
245 $aEvaluation of early generation selection procedures for yield in cowpea (Vigna unguiculata (L.) Walp.).
260 $c1984
520 $aThe objectives of the study were to evaluate early-generation selection procedures for their effectiveness in isolating high-yielding lines and to ascertain the relationship between yield performance in early generation and later generations. Four selection procedures viz: single plant selection, single plant bulk, bulk single plant and selected bulk were used based on F3 yield evaluation. Lines arising from these procedures in six crosses were compared in F3 for yield performance. Unselected lines were used as control. The differences among the four selection procedures with respect to grain yield were not significant. However, the most high-yielding lines were from the SPS procedure. The SB procedure gave the lowest number of high-yielding lines but required the least amount of land. The mean yields of F3 lines and bulks and the yields of F5 and F8 derived lines were significantly correlated.
650 $aProdutividade
650 $aSeleção
650 $aVigna Unguiculata
653 $aCaupi
653 $aCowpea
653 $aSelection procedures
700 1 $aREDDEN, R. J.
700 1 $aSINGH, B. B.
700 1 $aAKEN'OVA, M. E.
773 $tField Crops Research$gv. 9, p. 91-100, 1984.
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Embrapa Meio-Norte (CPAMN) |
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| Registros recuperados : 1 | |
| 1. |  | SINGH, B. B.; EHLERS, J. D.; SHARMA, B.; FREIRE FILHO, F. R. Recent progress in cowpea breeding. In: FATOKUN, C. A.; TARAWALI, S. A.; SINGH, B. B.; KORMAWA, P. M.; TAMÒ, M. (Ed.). Challenges and opportunities for enhancing sustainable cowpea production. Ibadan, Nigeria: IITA, 2002. p. 22-40.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Meio-Norte. |
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| Registros recuperados : 1 | |
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