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Registro Completo |
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
05/03/2015 |
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Data da última atualização: |
15/02/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
VAZ, F. L.; GOMES, T. A.; ROCHA, C. C. A.; MOUCO, M. A. do C.; GOUVEIA, E. R. |
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Afiliação: |
FERNANDA L. VAZ, UFPE; THAÍS A. GOMES, UFPE; CAIO C. A. ROCHA, UFPE; MARIA APARECIDA DO CARMO MOUCO, CPATSA; ESTER R . GOUVEIA, UFPE. |
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Título: |
Paclobutrazol biodegradation in unsaturated soil in the Semi-Arid Northeast of Brazil. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
African Journal of Biotechnology, Grahamstown, v.14, n. 4, p. 298-303, jan. 2015. |
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DOI: |
10.5897/AJB2014.13876 |
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Idioma: |
Inglês |
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Conteúdo: |
Paclobutrazol (PBZ) is a plant growth regulator, increasing flowering and yield that is widely used in mango cultivation in the semi-arid northeastern Brazil. PBZ remains active in the soil for several years. However, it can severely affect the growth and develo pment of subsequent crops, mainly by reducing vegetative vigor. The aim of this study was to investigate PBZ biodegradation in four samples of soil: P - G (with PBZ application history and with addition of glycerol); NP - G (without PBZ application history and with addition of glycerol); P - NG (with PBZ application history and without addition of glycerol) and NP - NG (without PBZ application history and without addition of glycerol) . The biodegradation experiments were carried out in 125 ml flasks containing 10 g soil, at room temperature for 63 days. Mathematical models to analyze the kinetics of degradation of PBZ were applied. PBZ residue was less than 1% in soils with a history, regardless the addition of glycerol. The three models (first - order kinetics, double first order kinetics and logistic) were well adjusted in these cases (P - G and P - NG). On the other hand, PBZ biodegradation in soil NP - G and NP - NG was 64%, and followed the model of double kinetic. PBZ biodegradation in soil with history was successful, probably because the native microbial had adapted to local environmental conditions |
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Palavras-Chave: |
Mango. |
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Thesagro: |
Manga; Mangifera Indica; Regulador de crescimento. |
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Thesaurus Nal: |
paclobutrazol. |
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Categoria do assunto: |
A Sistemas de Cultivo |
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Marc: |
LEADER 02117naa a2200241 a 4500
001 2010686
005 2016-02-15
008 2015 bl uuuu u00u1 u #d
024 7 $a10.5897/AJB2014.13876$2DOI
100 1 $aVAZ, F. L.
245 $aPaclobutrazol biodegradation in unsaturated soil in the Semi-Arid Northeast of Brazil.$h[electronic resource]
260 $c2015
520 $aPaclobutrazol (PBZ) is a plant growth regulator, increasing flowering and yield that is widely used in mango cultivation in the semi-arid northeastern Brazil. PBZ remains active in the soil for several years. However, it can severely affect the growth and develo pment of subsequent crops, mainly by reducing vegetative vigor. The aim of this study was to investigate PBZ biodegradation in four samples of soil: P - G (with PBZ application history and with addition of glycerol); NP - G (without PBZ application history and with addition of glycerol); P - NG (with PBZ application history and without addition of glycerol) and NP - NG (without PBZ application history and without addition of glycerol) . The biodegradation experiments were carried out in 125 ml flasks containing 10 g soil, at room temperature for 63 days. Mathematical models to analyze the kinetics of degradation of PBZ were applied. PBZ residue was less than 1% in soils with a history, regardless the addition of glycerol. The three models (first - order kinetics, double first order kinetics and logistic) were well adjusted in these cases (P - G and P - NG). On the other hand, PBZ biodegradation in soil NP - G and NP - NG was 64%, and followed the model of double kinetic. PBZ biodegradation in soil with history was successful, probably because the native microbial had adapted to local environmental conditions
650 $apaclobutrazol
650 $aManga
650 $aMangifera Indica
650 $aRegulador de crescimento
653 $aMango
700 1 $aGOMES, T. A.
700 1 $aROCHA, C. C. A.
700 1 $aMOUCO, M. A. do C.
700 1 $aGOUVEIA, E. R.
773 $tAfrican Journal of Biotechnology, Grahamstown$gv.14, n. 4, p. 298-303, jan. 2015.
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Registro original: |
Embrapa Semiárido (CPATSA) |
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