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 | Acesso ao texto completo restrito à biblioteca da Embrapa Mandioca e Fruticultura. Para informações adicionais entre em contato com cnpmf.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
16/01/2015 |
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Data da última atualização: |
26/05/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BRITO, M. E. B.; BRITO, K. S. A. de; FERNANDES, P. D.; GHEYI, H. R.; SUASSUNA, J. F.; SOARES FILHO, W. dos S.; MELO, A. S. de; XAVIER, D. A. |
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Afiliação: |
MARCOS ERIC BARBOSA BRITO, UFCG; KALYNE SONALE ARRUDA DE BRITO, UFCG; PEDRO DANTAS FERNANDES, UEP; HANS RAJ GHEYI, UEP; JANIVAN FERNANDES SUASSUNA, UEP; WALTER DOS SANTOS SOARES FILHO, CNPMF; ALBERTO SOARES DE MELO, UEP; DIEGO AZEVEDO XAVIER, UEP. |
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Título: |
Growth of ungrafted and grafted citrus rootstocks under saline water irrigation. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
African Journal of Agricultural Research, v. 9, n. 50, p. 3600-3609, December, 2014. |
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ISSN: |
1991-637X |
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DOI: |
1991-637X |
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Idioma: |
Inglês |
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Conteúdo: |
Growth of citrus genotypes under salinity during the plant formation was assessed. The experimental design consisted of a randomized block design with three replications in a greenhouse. Five salinity levels (0.8; 1.6; 2.4; 3.2; and 4.0 dS m-1) of irrigation water were applied to 12 genotypes (citrus varieties and hybrids from crossings involving Citrus and Poncirus) of citrus rootstocks, ungrafted and grafted with 'Tahiti' lime and 'Star Ruby' grapefruit. The irrigation with saline water was started at 60 days after sowing. Plants were initially grown in polyethylene tubes of 288 ml, and were transplanted to plastic bags, filled with commercial substrate after five months. The stem diameter, stem height and number of leaves on ungrafted rootstocks and scion-rootstock combinations were evaluated every 30 days. Data were assessed by analysis of variance by the 'F' test. Regression analyses were performed for quantitative variables (salinity) and means were compared at 5% of probability for qualitative factors (rootstocks and scions combinations) by Scott-Knott and Tukey tests. Citrus growth was reduced by salinity. The hybrid between Sunki of Florida mandarin (TSKFL) and citrange C25 (CTC25) - 010 and ?Troyer? citrange had greater growth compared to ungrafted. 'Rangpur' lime under 'Tahiti' lime is the most indicated combination for irrigation with saline water. |
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Thesagro: |
Citricultura; Fruta cítrica; Porta enxerto. |
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Thesaurus Nal: |
Citrus; Hybrids; Rootstocks; Salinity; Salt stress; Seedlings; Water quality. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02355naa a2200349 a 4500
001 2005898
005 2023-05-26
008 2014 bl uuuu u00u1 u #d
022 $a1991-637X
024 7 $a1991-637X$2DOI
100 1 $aBRITO, M. E. B.
245 $aGrowth of ungrafted and grafted citrus rootstocks under saline water irrigation.$h[electronic resource]
260 $c2014
520 $aGrowth of citrus genotypes under salinity during the plant formation was assessed. The experimental design consisted of a randomized block design with three replications in a greenhouse. Five salinity levels (0.8; 1.6; 2.4; 3.2; and 4.0 dS m-1) of irrigation water were applied to 12 genotypes (citrus varieties and hybrids from crossings involving Citrus and Poncirus) of citrus rootstocks, ungrafted and grafted with 'Tahiti' lime and 'Star Ruby' grapefruit. The irrigation with saline water was started at 60 days after sowing. Plants were initially grown in polyethylene tubes of 288 ml, and were transplanted to plastic bags, filled with commercial substrate after five months. The stem diameter, stem height and number of leaves on ungrafted rootstocks and scion-rootstock combinations were evaluated every 30 days. Data were assessed by analysis of variance by the 'F' test. Regression analyses were performed for quantitative variables (salinity) and means were compared at 5% of probability for qualitative factors (rootstocks and scions combinations) by Scott-Knott and Tukey tests. Citrus growth was reduced by salinity. The hybrid between Sunki of Florida mandarin (TSKFL) and citrange C25 (CTC25) - 010 and ?Troyer? citrange had greater growth compared to ungrafted. 'Rangpur' lime under 'Tahiti' lime is the most indicated combination for irrigation with saline water.
650 $aCitrus
650 $aHybrids
650 $aRootstocks
650 $aSalinity
650 $aSalt stress
650 $aSeedlings
650 $aWater quality
650 $aCitricultura
650 $aFruta cítrica
650 $aPorta enxerto
700 1 $aBRITO, K. S. A. de
700 1 $aFERNANDES, P. D.
700 1 $aGHEYI, H. R.
700 1 $aSUASSUNA, J. F.
700 1 $aSOARES FILHO, W. dos S.
700 1 $aMELO, A. S. de
700 1 $aXAVIER, D. A.
773 $tAfrican Journal of Agricultural Research$gv. 9, n. 50, p. 3600-3609, December, 2014.
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Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
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Registro Completo
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
15/07/1999 |
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Data da última atualização: |
15/07/1999 |
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Autoria: |
NEUFELDT, H.; AYARZA, M. A.; RESCK, D. V. S.; ZECH, W. |
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Título: |
Distribution of water-stable aggregates and aggregating agents in oxisols of the Brazilian cerrados. |
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Ano de publicação: |
1999 |
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Fonte/Imprenta: |
In: THOMAS, R.; AYARZA, M.A., ed. Sustainable land management for the oxisols of the Latin American savannas: dynamics of soil organic matter and indicators of soil quality. Cali: CIAT, 1999. |
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Páginas: |
p.51-63. |
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Idioma: |
Inglês |
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Conteúdo: |
The effects of land-use change on the structure of Oxisols in the Brazilian savannas (also known as the Cerrados) are still insuficiently understood. We therefore studied loamy and clayey Oxisols under natural savanna, crop, pastures, and reforestation to (1) quantify management-induced changes in the quantity of water-stable aggregates, (2) identify the main aggregating agents, and (3) correlate aggregation with changes in pore-size distribution. Clayey soils showed a significantly higher macroaggregation than did loamy soils. Compared with natural savanna, macroaggregation was clearly reduced under crops, whereas aggregation of soils under pasture and tree plantations was only slightly affected. In both clavey and loamy soils, polysaccharides formed the main aggregating agent. In the clayey soils, lime very effectively disaggregated the soils by weakening the electrostatic forces between positivily and negatively charged soil compounds. In the loamy soils, the role of roots in binding macroaggregates was significant. Because pastures provide strong rooting and higt polysaccharide production, we recommend introducing crop/pasture rotations. Management-induced disaggregation strongly affected the pore-size distribution by compacting the soils, and thus reducing macroporosity and increasing mesoporosity. Microporosity, however, was unaffected by management and differed only between the two substrates. Considering the Oxisols' typically low pore space at plant-available matrix potentials, the increase in mesoporosity may be important for annual crops during the frequent dry spells in the rainy season. MenosThe effects of land-use change on the structure of Oxisols in the Brazilian savannas (also known as the Cerrados) are still insuficiently understood. We therefore studied loamy and clayey Oxisols under natural savanna, crop, pastures, and reforestation to (1) quantify management-induced changes in the quantity of water-stable aggregates, (2) identify the main aggregating agents, and (3) correlate aggregation with changes in pore-size distribution. Clayey soils showed a significantly higher macroaggregation than did loamy soils. Compared with natural savanna, macroaggregation was clearly reduced under crops, whereas aggregation of soils under pasture and tree plantations was only slightly affected. In both clavey and loamy soils, polysaccharides formed the main aggregating agent. In the clayey soils, lime very effectively disaggregated the soils by weakening the electrostatic forces between positivily and negatively charged soil compounds. In the loamy soils, the role of roots in binding macroaggregates was significant. Because pastures provide strong rooting and higt polysaccharide production, we recommend introducing crop/pasture rotations. Management-induced disaggregation strongly affected the pore-size distribution by compacting the soils, and thus reducing macroporosity and increasing mesoporosity. Microporosity, however, was unaffected by management and differed only between the two substrates. Considering the Oxisols' typically low pore space at plant-available matrix... Mostrar Tudo |
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Thesagro: |
Cerrado; Estrutura do Solo; Oxisol; Uso da Terra. |
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Thesaurus NAL: |
Ferralsols; land use; soil structure. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02445naa a2200253 a 4500
001 1545398
005 1999-07-15
008 1999 bl uuuu u00u1 u #d
100 1 $aNEUFELDT, H.
245 $aDistribution of water-stable aggregates and aggregating agents in oxisols of the Brazilian cerrados.
260 $c1999
300 $ap.51-63.
520 $aThe effects of land-use change on the structure of Oxisols in the Brazilian savannas (also known as the Cerrados) are still insuficiently understood. We therefore studied loamy and clayey Oxisols under natural savanna, crop, pastures, and reforestation to (1) quantify management-induced changes in the quantity of water-stable aggregates, (2) identify the main aggregating agents, and (3) correlate aggregation with changes in pore-size distribution. Clayey soils showed a significantly higher macroaggregation than did loamy soils. Compared with natural savanna, macroaggregation was clearly reduced under crops, whereas aggregation of soils under pasture and tree plantations was only slightly affected. In both clavey and loamy soils, polysaccharides formed the main aggregating agent. In the clayey soils, lime very effectively disaggregated the soils by weakening the electrostatic forces between positivily and negatively charged soil compounds. In the loamy soils, the role of roots in binding macroaggregates was significant. Because pastures provide strong rooting and higt polysaccharide production, we recommend introducing crop/pasture rotations. Management-induced disaggregation strongly affected the pore-size distribution by compacting the soils, and thus reducing macroporosity and increasing mesoporosity. Microporosity, however, was unaffected by management and differed only between the two substrates. Considering the Oxisols' typically low pore space at plant-available matrix potentials, the increase in mesoporosity may be important for annual crops during the frequent dry spells in the rainy season.
650 $aFerralsols
650 $aland use
650 $asoil structure
650 $aCerrado
650 $aEstrutura do Solo
650 $aOxisol
650 $aUso da Terra
700 1 $aAYARZA, M. A.
700 1 $aRESCK, D. V. S.
700 1 $aZECH, W.
773 $tIn: THOMAS, R.; AYARZA, M.A., ed. Sustainable land management for the oxisols of the Latin American savannas: dynamics of soil organic matter and indicators of soil quality. Cali: CIAT, 1999.
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Embrapa Cerrados (CPAC) |
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