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| 2. |  | SALAZAR, F. S.; PANDEY, S.; NARRO, L.; PEREZ, J. C.; CEBALLOS, H.; PARENTONI, S. N.; BAHIA FILHO, A. F. C. Diallel analysis of acid-soil tolerant and intolerant tropical maize populations. Crop Science, Madison, v. 37, n. 5, p. 1457-1462, 1997.| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 3. | | SÁNCHEZ, T.; ORTIZ, D.; CHÁVEZ, A. L.; MORANTE, N.; PÉREZ, J. C.; CALLE, F; FUKUDA, W. M. G.; PACHÓN, H.; CEBALLOS, H. Progress in enhancing carotenoids content in cassava roots through the year 2008. In: REUNIÃO ANUAL DE BIOFORTIFICAÇÃO NO BRASIL, 3., 2009, Aracajú. Anais... Aracajú: Embrapa Tabuleiros Costeiros, 2009. 1 CD-ROM. (Embrapa Tabuleiros Costeiros. Documentos, 148).| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| Registros recuperados : 3 | |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Milho e Sorgo. Para informações adicionais entre em contato com cnpms.biblioteca@embrapa.br. |
Registro Completo
|
Biblioteca(s): |
Embrapa Milho e Sorgo. |
|
Data corrente: |
04/03/1998 |
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Data da última atualização: |
12/06/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SALAZAR, F. S.; PANDEY, S.; NARRO, L.; PEREZ, J. C.; CEBALLOS, H.; PARENTONI, S. N.; BAHIA FILHO, A. F. C. |
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Afiliação: |
SIDNEY NETTO PARENTONI, CNPMS. |
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Título: |
Diallel analysis of acid-soil tolerant and intolerant tropical maize populations. |
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Ano de publicação: |
1997 |
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Fonte/Imprenta: |
Crop Science, Madison, v. 37, n. 5, p. 1457-1462, 1997. |
|
Idioma: |
Inglês |
|
Conteúdo: |
Acid soils cover approximately 30% of the global ice-free land area, Nearly 26 million hectares of maize (Zea mays L.) is already planted on acid soils. Maize yields are low on acidic soils because of toxicities of Al, Mn, and Fe, and deficiencies of P, Ca, Mg, and K. Acid-tolerant maize cultivars would be an environmentally friendly and relatively inexpensive method for improving maize production on acidic soils. Little information is available in the literature on the magnitude of reciprocal effects on yield and other agronomic traits when maize is grown on acidic soils. A diallel study, involving eight segregating populations and their 56 reciprocal crosses, was conducted in five acidic-soil environments to determine relative importance of nuclear and cytoplasmic factors for yield, days to silk, ear height, ears per plant, and ear rot. Average (h) and specific (S) heterosis accounted for 65 and 31% of the total sum of squares for heterosis for yield were not significant, suggesting hj effects would be of little value in selecting populationfor developing superior hybrids. Specific heterosis effects were negative and significant (P < 0,05) for yield and ears per plant only for the cross of CMS 36 x ETO Blanco, suggesting a minor role for nonadditive gene effects in determining in determining yield of specific cross combinations. The absence of reciprocal differences for all traits indicated that tolerance to soil acidity was controlled by nuclear genes. |
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Palavras-Chave: |
Acid soil; Maize; Tolerancia; Tolerant; Tropical. |
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Thesagro: |
Milho; Solo Ácido; Zea Mays. |
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Thesaurus NAL: |
breeding. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02272naa a2200301 a 4500
001 1478817
005 2018-06-12
008 1997 bl uuuu u00u1 u #d
100 1 $aSALAZAR, F. S.
245 $aDiallel analysis of acid-soil tolerant and intolerant tropical maize populations.$h[electronic resource]
260 $c1997
520 $aAcid soils cover approximately 30% of the global ice-free land area, Nearly 26 million hectares of maize (Zea mays L.) is already planted on acid soils. Maize yields are low on acidic soils because of toxicities of Al, Mn, and Fe, and deficiencies of P, Ca, Mg, and K. Acid-tolerant maize cultivars would be an environmentally friendly and relatively inexpensive method for improving maize production on acidic soils. Little information is available in the literature on the magnitude of reciprocal effects on yield and other agronomic traits when maize is grown on acidic soils. A diallel study, involving eight segregating populations and their 56 reciprocal crosses, was conducted in five acidic-soil environments to determine relative importance of nuclear and cytoplasmic factors for yield, days to silk, ear height, ears per plant, and ear rot. Average (h) and specific (S) heterosis accounted for 65 and 31% of the total sum of squares for heterosis for yield were not significant, suggesting hj effects would be of little value in selecting populationfor developing superior hybrids. Specific heterosis effects were negative and significant (P < 0,05) for yield and ears per plant only for the cross of CMS 36 x ETO Blanco, suggesting a minor role for nonadditive gene effects in determining in determining yield of specific cross combinations. The absence of reciprocal differences for all traits indicated that tolerance to soil acidity was controlled by nuclear genes.
650 $abreeding
650 $aMilho
650 $aSolo Ácido
650 $aZea Mays
653 $aAcid soil
653 $aMaize
653 $aTolerancia
653 $aTolerant
653 $aTropical
700 1 $aPANDEY, S.
700 1 $aNARRO, L.
700 1 $aPEREZ, J. C.
700 1 $aCEBALLOS, H.
700 1 $aPARENTONI, S. N.
700 1 $aBAHIA FILHO, A. F. C.
773 $tCrop Science, Madison$gv. 37, n. 5, p. 1457-1462, 1997.
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