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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Norte / UEP-Parnaíba. |
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Data corrente: |
15/07/1996 |
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Data da última atualização: |
24/08/2009 |
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Autoria: |
CAHN, M. D.; ZOBEL, R. W.; BOULDIN, D. R. |
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Título: |
Relationship between root elongation rate and diameter and duration of growth of lateral roots of maize. |
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Ano de publicação: |
1989 |
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Fonte/Imprenta: |
Plant and Soil, v. 119, n. 2, p. 271-279, 1989. |
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Idioma: |
Inglês |
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Conteúdo: |
The objective of this work was to describe the relationship between elongation rate and diameter of maize roots and to estimate the length and growth duration of lateral roots of maize. Diameters and elongation rates of roots were measured in situ on plants grown 5 weeks in small rhizotrons under greenhouse conditions. At the end of the experimental period the roots were harvested and diameters of axile and lateral roots were measured. The frequency distribution of diameters of harvested roots was bimodal with a minimum at 0.6 mm; 97% of axile roots were larger than this value and 98% of the lateral roots were smaller. Root elongation per day increased as diameter increased but the slope of the relationship with lateral roots was about 2.5 times that with axile roots when separate linear regressions were fitted to the two populations. The length of lateral roots found on axillary roots between the base and about 30 cm from the apex was approximately 2.2 cm. All of the data was consistent with the hypothesis that the lateral roots grew for about 2.5 days and the ceased growing. The axillary roots continued to grow throughout the experimental period at a rate of about 3 cm day -1. |
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Palavras-Chave: |
Elongação; Elongation; Maize; Root system. |
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Thesagro: |
Milho; Sistema Radicular. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01791naa a2200217 a 4500
001 1077862
005 2009-08-24
008 1989 bl --- 0-- u #d
100 1 $aCAHN, M. D.
245 $aRelationship between root elongation rate and diameter and duration of growth of lateral roots of maize.
260 $c1989
520 $aThe objective of this work was to describe the relationship between elongation rate and diameter of maize roots and to estimate the length and growth duration of lateral roots of maize. Diameters and elongation rates of roots were measured in situ on plants grown 5 weeks in small rhizotrons under greenhouse conditions. At the end of the experimental period the roots were harvested and diameters of axile and lateral roots were measured. The frequency distribution of diameters of harvested roots was bimodal with a minimum at 0.6 mm; 97% of axile roots were larger than this value and 98% of the lateral roots were smaller. Root elongation per day increased as diameter increased but the slope of the relationship with lateral roots was about 2.5 times that with axile roots when separate linear regressions were fitted to the two populations. The length of lateral roots found on axillary roots between the base and about 30 cm from the apex was approximately 2.2 cm. All of the data was consistent with the hypothesis that the lateral roots grew for about 2.5 days and the ceased growing. The axillary roots continued to grow throughout the experimental period at a rate of about 3 cm day -1.
650 $aMilho
650 $aSistema Radicular
653 $aElongação
653 $aElongation
653 $aMaize
653 $aRoot system
700 1 $aZOBEL, R. W.
700 1 $aBOULDIN, D. R.
773 $tPlant and Soil$gv. 119, n. 2, p. 271-279, 1989.
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Registro original: |
Embrapa Meio Norte / UEP-Parnaíba (CPAMN-UEPP) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Leite. Para informações adicionais entre em contato com cnpgl.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
27/02/2015 |
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Data da última atualização: |
27/02/2015 |
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Tipo da produção científica: |
Capítulo em Livro Técnico-Científico |
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Autoria: |
SILVA, M. R.; COSTA, R. R. da; ABI-ZAID, K. C. F.; PEREIRA, J. da C. |
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Afiliação: |
MARCIO ROBERTO SILVA, CNPGL; RONALDO RODRIGUES DA COSTA, Hospital Regional Dr. João Penido, Juiz de Fora MG; KELLY CRISTINA FERREIRA ABI-ZAID, FHEMIG; JISLENY DA CRUZ PEREIRA, Colégio Cristo Redentor, Juiz de Fora MG. |
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Título: |
Interdependência entre o equilíbrio socioambiental e a saúde animal e a humana: a necessidade de enfoques na saúde pública veterinária e na vigilância ambiental. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
In: CASTELLANO, E. G.; ROSSI, A.; CRESTANA, S. (Ed.). Princípios gerais do direito ambiental. Brasília, DF: Embrapa, 2014. v. 1. (Direito Ambiental, 1). |
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Páginas: |
p. 915-938 |
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Idioma: |
Português |
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Palavras-Chave: |
Doenças emergentes e reemergentes; Mudanças socioambientais e doenças; Saúde pública veterinária; Vigilância ambiental. |
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Thesaurus NAL: |
zoonoses. |
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Categoria do assunto: |
H Saúde e Patologia |
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Marc: |
LEADER 00869naa a2200217 a 4500
001 2010137
005 2015-02-27
008 2014 bl uuuu u00u1 u #d
100 1 $aSILVA, M. R.
245 $aInterdependência entre o equilíbrio socioambiental e a saúde animal e a humana$ba necessidade de enfoques na saúde pública veterinária e na vigilância ambiental.
260 $c2014
300 $ap. 915-938
650 $azoonoses
653 $aDoenças emergentes e reemergentes
653 $aMudanças socioambientais e doenças
653 $aSaúde pública veterinária
653 $aVigilância ambiental
700 1 $aCOSTA, R. R. da
700 1 $aABI-ZAID, K. C. F.
700 1 $aPEREIRA, J. da C.
773 $tIn: CASTELLANO, E. G.; ROSSI, A.; CRESTANA, S. (Ed.). Princípios gerais do direito ambiental. Brasília, DF: Embrapa, 2014.$gv. 1. (Direito Ambiental, 1).
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Embrapa Gado de Leite (CNPGL) |
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