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Registro Completo |
Biblioteca(s): |
Embrapa Cerrados. |
Data corrente: |
09/02/2000 |
Data da última atualização: |
05/04/2012 |
Autoria: |
GOEDERT, W. J. (ed.). |
Afiliação: |
WENCESLAU J. GOEDERT, CPAC. |
Título: |
Solos dos cerrados: tecnologias e estratégias de manejo. |
Ano de publicação: |
1987 |
Fonte/Imprenta: |
Planaltina, DF: EMBRAPA-CPAC; São Paulo: Nobel, 1987. |
Páginas: |
422p. |
Descrição Física: |
1. ed. 1. reimp. |
ISBN: |
85-7075-001-3 |
Idioma: |
Português |
Palavras-Chave: |
Brasil; Correcao do solo; Flood plains; Management; Sulphur. |
Thesagro: |
Agricultura; Água do Solo; Cerrado; Enxofre; Fósforo; Irrigação; Manejo; Manejo do Solo; Matéria Orgânica; Mecanização; Microelemento; Mineral; Nitrogênio; Nutrição Vegetal; Nutriente; Potássio; Solo; Solo Ácido; Várzea. |
Thesaurus Nal: |
acid soils; agriculture; Brazil; irrigation; mechanization; minerals; nitrogen; nutrients; organic matter; phosphorus; plant nutrition; potassium; soil; soil amendments; soil management; soil water; trace elements. |
Categoria do assunto: |
-- |
Marc: |
LEADER 01493nam a2200613 a 4500 001 1555025 005 2012-04-05 008 1987 bl uuuu 00u1 u #d 020 $a85-7075-001-3 100 1 $aGOEDERT, W. J. 245 $aSolos dos cerrados$btecnologias e estratégias de manejo. 260 $aPlanaltina, DF: EMBRAPA-CPAC; São Paulo: Nobel$c1987 300 $a422p.$c1. ed. 1. reimp. 650 $aacid soils 650 $aagriculture 650 $aBrazil 650 $airrigation 650 $amechanization 650 $aminerals 650 $anitrogen 650 $anutrients 650 $aorganic matter 650 $aphosphorus 650 $aplant nutrition 650 $apotassium 650 $asoil 650 $asoil amendments 650 $asoil management 650 $asoil water 650 $atrace elements 650 $aAgricultura 650 $aÁgua do Solo 650 $aCerrado 650 $aEnxofre 650 $aFósforo 650 $aIrrigação 650 $aManejo 650 $aManejo do Solo 650 $aMatéria Orgânica 650 $aMecanização 650 $aMicroelemento 650 $aMineral 650 $aNitrogênio 650 $aNutrição Vegetal 650 $aNutriente 650 $aPotássio 650 $aSolo 650 $aSolo Ácido 650 $aVárzea 653 $aBrasil 653 $aCorrecao do solo 653 $aFlood plains 653 $aManagement 653 $aSulphur
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Embrapa Cerrados (CPAC) |
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Registro Completo
Biblioteca(s): |
Embrapa Milho e Sorgo. |
Data corrente: |
10/09/2013 |
Data da última atualização: |
06/08/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 2 |
Autoria: |
SOUZA, T. C. de; CASTRO, E. M. de; MAGALHAES, P. C.; LINO, L. de O.; ALVES, E. T.; ALBUQUERQUE, P. E. P. de. |
Afiliação: |
PAULO CESAR MAGALHAES, CNPMS; PAULO EMILIO PEREIRA DE ALBUQUERQUE, CNPMS. |
Título: |
Morphophysiology, morphoanatomy, and grain yield under field conditions for two maize hybrids with contrasting response to drought stress. |
Ano de publicação: |
2013 |
Fonte/Imprenta: |
Acta Physiologiae Plantarum, v. 35, p. 3201-3211, 2013. |
DOI: |
10.1007/s11738-013-1355-1 |
Idioma: |
Inglês |
Conteúdo: |
In the northern region of the state of Minas Gerais, lack of rainfall limits crop production in the field, which is possible only with irrigation. Agricultural and physiological practices have been intensively searched to overcome drought effects and consequently increase production. In this context, the objective of this study was to characterize morphophysiological and morphoanatomical changes and evaluate the attributes of grain yield under field conditions in two hybrids contrasting for drought tolerance. The experiment was carried out for 2 years (2010 and 2011) and the water deficit was imposed by stopping irrigation for 22 days at the pre-flowering stage. At the end of the stress treatment, leaf and root anatomy and morphophysiological characteristics (leaf water potential, chlorophyll content, percentage of dry leaves, leaf area, stomatal conductance, chlorophyll fluorescence, and anthesis-silking interval) were evaluated. For a better interpretation of tolerance of the hybrids in the evaluated characteristics, an index was used stress index. Hybrid DKB 390 (tolerant) surpassed hybrid BRS 1030 (sensitive) in grain yield. Furthermore, it presented lower percentage of dry leaves, higher flowering synchronization, higher stomatal conductance, and higher Fv/Fm relationship. In the root, DKB 390 showed higher amount of aerenchyma in the cortex, an increase of exodermis width, and numerous metaxylem with smaller diameter. In the leaf, it presented higher number of stomata and smaller distance between the vascular bundles in the leaf blade. The study concluded that significant morphophysiological and morphoanatomical changes, which are related to drought tolerance, occurred in DKB 390, leading to a higher yield in the field. MenosIn the northern region of the state of Minas Gerais, lack of rainfall limits crop production in the field, which is possible only with irrigation. Agricultural and physiological practices have been intensively searched to overcome drought effects and consequently increase production. In this context, the objective of this study was to characterize morphophysiological and morphoanatomical changes and evaluate the attributes of grain yield under field conditions in two hybrids contrasting for drought tolerance. The experiment was carried out for 2 years (2010 and 2011) and the water deficit was imposed by stopping irrigation for 22 days at the pre-flowering stage. At the end of the stress treatment, leaf and root anatomy and morphophysiological characteristics (leaf water potential, chlorophyll content, percentage of dry leaves, leaf area, stomatal conductance, chlorophyll fluorescence, and anthesis-silking interval) were evaluated. For a better interpretation of tolerance of the hybrids in the evaluated characteristics, an index was used stress index. Hybrid DKB 390 (tolerant) surpassed hybrid BRS 1030 (sensitive) in grain yield. Furthermore, it presented lower percentage of dry leaves, higher flowering synchronization, higher stomatal conductance, and higher Fv/Fm relationship. In the root, DKB 390 showed higher amount of aerenchyma in the cortex, an increase of exodermis width, and numerous metaxylem with smaller diameter. In the leaf, it presented higher number of stomata ... Mostrar Tudo |
Palavras-Chave: |
Estresse hídrico; Índice de colheita. |
Thesagro: |
Milho; Zea mays. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02528naa a2200241 a 4500 001 1965966 005 2021-08-06 008 2013 bl uuuu u00u1 u #d 024 7 $a10.1007/s11738-013-1355-1$2DOI 100 1 $aSOUZA, T. C. de 245 $aMorphophysiology, morphoanatomy, and grain yield under field conditions for two maize hybrids with contrasting response to drought stress.$h[electronic resource] 260 $c2013 520 $aIn the northern region of the state of Minas Gerais, lack of rainfall limits crop production in the field, which is possible only with irrigation. Agricultural and physiological practices have been intensively searched to overcome drought effects and consequently increase production. In this context, the objective of this study was to characterize morphophysiological and morphoanatomical changes and evaluate the attributes of grain yield under field conditions in two hybrids contrasting for drought tolerance. The experiment was carried out for 2 years (2010 and 2011) and the water deficit was imposed by stopping irrigation for 22 days at the pre-flowering stage. At the end of the stress treatment, leaf and root anatomy and morphophysiological characteristics (leaf water potential, chlorophyll content, percentage of dry leaves, leaf area, stomatal conductance, chlorophyll fluorescence, and anthesis-silking interval) were evaluated. For a better interpretation of tolerance of the hybrids in the evaluated characteristics, an index was used stress index. Hybrid DKB 390 (tolerant) surpassed hybrid BRS 1030 (sensitive) in grain yield. Furthermore, it presented lower percentage of dry leaves, higher flowering synchronization, higher stomatal conductance, and higher Fv/Fm relationship. In the root, DKB 390 showed higher amount of aerenchyma in the cortex, an increase of exodermis width, and numerous metaxylem with smaller diameter. In the leaf, it presented higher number of stomata and smaller distance between the vascular bundles in the leaf blade. The study concluded that significant morphophysiological and morphoanatomical changes, which are related to drought tolerance, occurred in DKB 390, leading to a higher yield in the field. 650 $aMilho 650 $aZea mays 653 $aEstresse hídrico 653 $aÍndice de colheita 700 1 $aCASTRO, E. M. de 700 1 $aMAGALHAES, P. C. 700 1 $aLINO, L. de O. 700 1 $aALVES, E. T. 700 1 $aALBUQUERQUE, P. E. P. de 773 $tActa Physiologiae Plantarum$gv. 35, p. 3201-3211, 2013.
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