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Registro Completo |
Biblioteca(s): |
Embrapa Arroz e Feijão; Embrapa Solos / UEP-Recife; Embrapa Unidades Centrais. |
Data corrente: |
29/06/2012 |
Data da última atualização: |
16/09/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
PEREIRA, R. G.; HEINEMANN, A. B.; MADARI, B. E.; CARVALHO, M. T. de M.; KLIEMANN, H. J.; SANTOS, A. P. dos. |
Afiliação: |
ROGÉRIO GOMES PEREIRA, UNIVERSIDADE FEDERAL DE GOIÁS; ALEXANDRE BRYAN HEINEMANN, CNPAF; BEATA EMOKE MADARI, CNPAF; MARCIA THAIS DE MELO CARVALHO, CNPAF; HUBERTO JOSE KLIEMANN, UNIVERSIDADE FEDERAL DE GOIÁS; AURÉLIO PEREIRA DOS SANTOS, CNPAF. |
Título: |
Transpiration response of upland rice to water deficit changed by different levels of eucalyptus biochar. |
Ano de publicação: |
2012 |
Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, v. 47, n. 5, p. 716-721, maio 2012. |
DOI: |
https://doi.org/10.1590/S0100-204X2012000500012 |
Idioma: |
Inglês |
Conteúdo: |
The objective of this work was to evaluate the effect of eucalyptus biochar on the transpiration rate of upland rice 'BRSMG Curinga' as an alternative means to decrease the effect of water stress on plant growth and development. Two-pot experiments were carried out using a completely randomized block design, in a split-plot arrangement, with six replicates. Main plots were water stress (WS) and no-water stress (NWS), and the subplots were biochar doses at 0, 6, 12 and 24% in growing medium (sand). Total transpirable soil water (TTSW), the p factor - defined as the average fraction of TTSW which can be depleted from the root zone before water stress limits growth-, and the normalized transpiration rate (NTR) were determined. Biochar addition increased TTSW and the p factor, and reduced NTR. Consequently, biochar addition was able to change the moisture threshold (p factor) of the growing medium, up to 12% maximum concentration, delaying the point where transpiration declines and affects yield. |
Palavras-Chave: |
Estresse abiótico. |
Thesagro: |
Arroz; Deficiência hídrica; Eucalipto; Oryza sativa. |
Thesaurus Nal: |
Abiotic stress; biochar; Eucalyptus; Plant-water relations. |
Categoria do assunto: |
-- P Recursos Naturais, Ciências Ambientais e da Terra |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/61554/1/a12v47n5.pdf
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Marc: |
LEADER 01913naa a2200301 a 4500 001 1927378 005 2022-09-16 008 2012 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1590/S0100-204X2012000500012$2DOI 100 1 $aPEREIRA, R. G. 245 $aTranspiration response of upland rice to water deficit changed by different levels of eucalyptus biochar. 260 $c2012 520 $aThe objective of this work was to evaluate the effect of eucalyptus biochar on the transpiration rate of upland rice 'BRSMG Curinga' as an alternative means to decrease the effect of water stress on plant growth and development. Two-pot experiments were carried out using a completely randomized block design, in a split-plot arrangement, with six replicates. Main plots were water stress (WS) and no-water stress (NWS), and the subplots were biochar doses at 0, 6, 12 and 24% in growing medium (sand). Total transpirable soil water (TTSW), the p factor - defined as the average fraction of TTSW which can be depleted from the root zone before water stress limits growth-, and the normalized transpiration rate (NTR) were determined. Biochar addition increased TTSW and the p factor, and reduced NTR. Consequently, biochar addition was able to change the moisture threshold (p factor) of the growing medium, up to 12% maximum concentration, delaying the point where transpiration declines and affects yield. 650 $aAbiotic stress 650 $abiochar 650 $aEucalyptus 650 $aPlant-water relations 650 $aArroz 650 $aDeficiência hídrica 650 $aEucalipto 650 $aOryza sativa 653 $aEstresse abiótico 700 1 $aHEINEMANN, A. B. 700 1 $aMADARI, B. E. 700 1 $aCARVALHO, M. T. de M. 700 1 $aKLIEMANN, H. J. 700 1 $aSANTOS, A. P. dos 773 $tPesquisa Agropecuária Brasileira$gv. 47, n. 5, p. 716-721, maio 2012.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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1. | | PEREIRA, R. G.; HEINEMANN, A. B.; MADARI, B. E.; CARVALHO, M. T. de M.; KLIEMANN, H. J.; SANTOS, A. P. dos. Transpiration response of upland rice to water deficit changed by different levels of eucalyptus biochar. Pesquisa Agropecuária Brasileira, v. 47, n. 5, p. 716-721, maio 2012.Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
Biblioteca(s): Embrapa Arroz e Feijão; Embrapa Unidades Centrais. |
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