Physiological study of cupuaçu [Theobroma grandiflorum (Willd. ex. Spreng.) Schum.,] tree progenies subjected to water deficiency.

Detalhes bibliográficos
Autor(a) principal: PALHETA, J. G.
Data de Publicação: 2018
Outros Autores: SOUZA, L. C. de, CUNHA, R. L., ALVES, R. M., BARBOSA, A. V. C., SOUSA, D. J. P. de, TEIXEIRA, J. S. S., CONCEIÇÃO, S. S., OKUMURA, R. S., OLIVEIRA NETO, C. F. de
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
Texto Completo: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1101177
Resumo: Aims: The study aimed to investigate the physiological behaviour of cupuaçu tree progenies subjected to water deficiency; Study Design: The experimental design was completely randomised, in a 2x7 factorial scheme (2 water regimes: with and without water deficiency and 7 cupuaçu tree genotypes), totalling 14 treatments with 5 replications; Place and Duration of Study: The experiment was carried out from March to November 2016, in a greenhouse of Embrapa Eastern Amazon in the municipality of Belém, State of Pará, Brazil, located at the geographic coordinates 01º 27' of South Latitude and 48º 30' of West Longitude; Methodology: The following parameters were evaluated: predawn water potential (Ψpd), water potential of xylem (Ψx), stomatal conductance (GS), transpiration (E), photosynthesis (PS), internal carbon concentration (CI), internal and external carbon ratio (CI/CA), chlorophyll a (Chl a), b (Chl b), total (Chl total), anthocyanin (ANT), carotenoids (CAR), instantaneous carboxylation efficiency (ICE), and water-use efficiency (WUE). The variables were submitted to multivariate analysis; Results: Two distinct groups were resulted. Group 1 retained the treatments with water deficiency and group 2 retained the control treatments. This result occurred because the water conditions were different. The MC1 was influenced by PS because photosynthetic pigments are essential for photosynthesis. PS, GS, Chl total, Chl a, CAR, CI, CI/CA, Ψpd, Ψx, E, and ICEresulted with greater intensity in the control treatments, and with less intensity in the genotypes submitted to water deficiency; This behaviour is because of water deficiency that reduces photosynthesis. The MC2 was influenced by Chl b, ANT, and WUE. In water deficiency, the distinction in the physiological behaviour of cupuaçu tree progenies occurs in relation to the progenies that did not undergo water stress; Conclusion: The cupuaçu tree progenies under water restriction condition have a positive effect on water-use efficiency.
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spelling Physiological study of cupuaçu [Theobroma grandiflorum (Willd. ex. Spreng.) Schum.,] tree progenies subjected to water deficiency.CupuaçuTheobroma GrandiflorumÁguaDeficiênciaDeficiência HídricaAims: The study aimed to investigate the physiological behaviour of cupuaçu tree progenies subjected to water deficiency; Study Design: The experimental design was completely randomised, in a 2x7 factorial scheme (2 water regimes: with and without water deficiency and 7 cupuaçu tree genotypes), totalling 14 treatments with 5 replications; Place and Duration of Study: The experiment was carried out from March to November 2016, in a greenhouse of Embrapa Eastern Amazon in the municipality of Belém, State of Pará, Brazil, located at the geographic coordinates 01º 27' of South Latitude and 48º 30' of West Longitude; Methodology: The following parameters were evaluated: predawn water potential (Ψpd), water potential of xylem (Ψx), stomatal conductance (GS), transpiration (E), photosynthesis (PS), internal carbon concentration (CI), internal and external carbon ratio (CI/CA), chlorophyll a (Chl a), b (Chl b), total (Chl total), anthocyanin (ANT), carotenoids (CAR), instantaneous carboxylation efficiency (ICE), and water-use efficiency (WUE). The variables were submitted to multivariate analysis; Results: Two distinct groups were resulted. Group 1 retained the treatments with water deficiency and group 2 retained the control treatments. This result occurred because the water conditions were different. The MC1 was influenced by PS because photosynthetic pigments are essential for photosynthesis. PS, GS, Chl total, Chl a, CAR, CI, CI/CA, Ψpd, Ψx, E, and ICEresulted with greater intensity in the control treatments, and with less intensity in the genotypes submitted to water deficiency; This behaviour is because of water deficiency that reduces photosynthesis. The MC2 was influenced by Chl b, ANT, and WUE. In water deficiency, the distinction in the physiological behaviour of cupuaçu tree progenies occurs in relation to the progenies that did not undergo water stress; Conclusion: The cupuaçu tree progenies under water restriction condition have a positive effect on water-use efficiency.Juscelino Gonçalves Palheta, UFRA; Luma Castro de Souza, UFRA; ROBERTO LISBOA CUNHA, CPATU; RAFAEL MOYSES ALVES, CPATU; Antônio Vinícius Corrêa Barbosa, UFRA; Diana Jhulia Palheta de Sousa, UFRA; Jessica Suellen Silva Teixeira, UFRA; Susana Silva Conceição, UFRA; Ricardo Shigueru Okumura, UFRA; Cândido Ferreira de Oliveira Neto, UFRA.PALHETA, J. G.SOUZA, L. C. deCUNHA, R. L.ALVES, R. M.BARBOSA, A. V. C.SOUSA, D. J. P. deTEIXEIRA, J. S. S.CONCEIÇÃO, S. S.OKUMURA, R. S.OLIVEIRA NETO, C. F. de2018-12-12T00:05:43Z2018-12-12T00:05:43Z2018-12-1120182018-12-12T00:05:43Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleJournal of Experimental Agriculture International, v. 28, n. 3, 2018. Article no.JEAI.44282.http://www.alice.cnptia.embrapa.br/alice/handle/doc/110117710.9734/JEAI/2018/44282enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2018-12-12T00:05:49Zoai:www.alice.cnptia.embrapa.br:doc/1101177Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542018-12-12T00:05:49falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542018-12-12T00:05:49Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Physiological study of cupuaçu [Theobroma grandiflorum (Willd. ex. Spreng.) Schum.,] tree progenies subjected to water deficiency.
title Physiological study of cupuaçu [Theobroma grandiflorum (Willd. ex. Spreng.) Schum.,] tree progenies subjected to water deficiency.
spellingShingle Physiological study of cupuaçu [Theobroma grandiflorum (Willd. ex. Spreng.) Schum.,] tree progenies subjected to water deficiency.
PALHETA, J. G.
Cupuaçu
Theobroma Grandiflorum
Água
Deficiência
Deficiência Hídrica
title_short Physiological study of cupuaçu [Theobroma grandiflorum (Willd. ex. Spreng.) Schum.,] tree progenies subjected to water deficiency.
title_full Physiological study of cupuaçu [Theobroma grandiflorum (Willd. ex. Spreng.) Schum.,] tree progenies subjected to water deficiency.
title_fullStr Physiological study of cupuaçu [Theobroma grandiflorum (Willd. ex. Spreng.) Schum.,] tree progenies subjected to water deficiency.
title_full_unstemmed Physiological study of cupuaçu [Theobroma grandiflorum (Willd. ex. Spreng.) Schum.,] tree progenies subjected to water deficiency.
title_sort Physiological study of cupuaçu [Theobroma grandiflorum (Willd. ex. Spreng.) Schum.,] tree progenies subjected to water deficiency.
author PALHETA, J. G.
author_facet PALHETA, J. G.
SOUZA, L. C. de
CUNHA, R. L.
ALVES, R. M.
BARBOSA, A. V. C.
SOUSA, D. J. P. de
TEIXEIRA, J. S. S.
CONCEIÇÃO, S. S.
OKUMURA, R. S.
OLIVEIRA NETO, C. F. de
author_role author
author2 SOUZA, L. C. de
CUNHA, R. L.
ALVES, R. M.
BARBOSA, A. V. C.
SOUSA, D. J. P. de
TEIXEIRA, J. S. S.
CONCEIÇÃO, S. S.
OKUMURA, R. S.
OLIVEIRA NETO, C. F. de
author2_role author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Juscelino Gonçalves Palheta, UFRA; Luma Castro de Souza, UFRA; ROBERTO LISBOA CUNHA, CPATU; RAFAEL MOYSES ALVES, CPATU; Antônio Vinícius Corrêa Barbosa, UFRA; Diana Jhulia Palheta de Sousa, UFRA; Jessica Suellen Silva Teixeira, UFRA; Susana Silva Conceição, UFRA; Ricardo Shigueru Okumura, UFRA; Cândido Ferreira de Oliveira Neto, UFRA.
dc.contributor.author.fl_str_mv PALHETA, J. G.
SOUZA, L. C. de
CUNHA, R. L.
ALVES, R. M.
BARBOSA, A. V. C.
SOUSA, D. J. P. de
TEIXEIRA, J. S. S.
CONCEIÇÃO, S. S.
OKUMURA, R. S.
OLIVEIRA NETO, C. F. de
dc.subject.por.fl_str_mv Cupuaçu
Theobroma Grandiflorum
Água
Deficiência
Deficiência Hídrica
topic Cupuaçu
Theobroma Grandiflorum
Água
Deficiência
Deficiência Hídrica
description Aims: The study aimed to investigate the physiological behaviour of cupuaçu tree progenies subjected to water deficiency; Study Design: The experimental design was completely randomised, in a 2x7 factorial scheme (2 water regimes: with and without water deficiency and 7 cupuaçu tree genotypes), totalling 14 treatments with 5 replications; Place and Duration of Study: The experiment was carried out from March to November 2016, in a greenhouse of Embrapa Eastern Amazon in the municipality of Belém, State of Pará, Brazil, located at the geographic coordinates 01º 27' of South Latitude and 48º 30' of West Longitude; Methodology: The following parameters were evaluated: predawn water potential (Ψpd), water potential of xylem (Ψx), stomatal conductance (GS), transpiration (E), photosynthesis (PS), internal carbon concentration (CI), internal and external carbon ratio (CI/CA), chlorophyll a (Chl a), b (Chl b), total (Chl total), anthocyanin (ANT), carotenoids (CAR), instantaneous carboxylation efficiency (ICE), and water-use efficiency (WUE). The variables were submitted to multivariate analysis; Results: Two distinct groups were resulted. Group 1 retained the treatments with water deficiency and group 2 retained the control treatments. This result occurred because the water conditions were different. The MC1 was influenced by PS because photosynthetic pigments are essential for photosynthesis. PS, GS, Chl total, Chl a, CAR, CI, CI/CA, Ψpd, Ψx, E, and ICEresulted with greater intensity in the control treatments, and with less intensity in the genotypes submitted to water deficiency; This behaviour is because of water deficiency that reduces photosynthesis. The MC2 was influenced by Chl b, ANT, and WUE. In water deficiency, the distinction in the physiological behaviour of cupuaçu tree progenies occurs in relation to the progenies that did not undergo water stress; Conclusion: The cupuaçu tree progenies under water restriction condition have a positive effect on water-use efficiency.
publishDate 2018
dc.date.none.fl_str_mv 2018-12-12T00:05:43Z
2018-12-12T00:05:43Z
2018-12-11
2018
2018-12-12T00:05:43Z
dc.type.driver.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv Journal of Experimental Agriculture International, v. 28, n. 3, 2018. Article no.JEAI.44282.
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1101177
10.9734/JEAI/2018/44282
identifier_str_mv Journal of Experimental Agriculture International, v. 28, n. 3, 2018. Article no.JEAI.44282.
10.9734/JEAI/2018/44282
url http://www.alice.cnptia.embrapa.br/alice/handle/doc/1101177
dc.language.iso.fl_str_mv eng
language eng
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eu_rights_str_mv openAccess
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instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
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instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
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institution EMBRAPA
reponame_str Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
collection Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
repository.name.fl_str_mv Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
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