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Biblioteca(s): |
Embrapa Clima Temperado. |
Data corrente: |
15/03/2022 |
Data da última atualização: |
15/03/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
DORNELES, A. O. S.; PEREIRA, A. S.; SILVA, T. B. da; TANIGUCHI, M.; BORTOLIN, G. S.; CASTRO, C. M.; PEREIRA, A. da S.; REISSER JUNIOR, C.; AMARANTE, L. do; HAERTER, J. A.; DUTRA, L. F. |
Afiliação: |
ATHOS ODIN SEVERO DORNELES; ALINE SOARES PEREIRA; TALIS BASILIO DA SILVA; MARISA TANIGUCHI; GABRIEL STRECK BORTOLIN; CAROLINE MARQUES CASTRO, CPACT; ARIONE DA SILVA PEREIRA, CPACT; CARLOS REISSER JUNIOR, CPACT; LUCIANO DO AMARANTE; JANNI ANDRE HAERTER, CPACT; LEONARDO FERREIRA DUTRA, CPACT. |
Título: |
Responses of Solanum tuberosum L. to Water Deficit by Matric or Osmotic Induction. |
Ano de publicação: |
2021 |
Fonte/Imprenta: |
Potato Research, v. 64, p. 515-534, 2021. |
DOI: |
https://doi.org/10.1007/s11540-020-09489-3 |
Idioma: |
Inglês |
Conteúdo: |
Toselectpotatogenotypestoleranttowaterdeficit,systemstosimulatethisstresshavebeen used. Polyethylene glycol (PEG) is the main osmotic agent used for this purpose, but it causes an excessively severe stress. However, it is difficult to carry out an experiment that aims to compare plant responses under water deficit by osmotic or matric induction, and, thus,fewstudiescomparethesestress-inducingmechanisms.Therefore,theobjectiveofthis studywas to compare the responses of Agata, BRS Clara,C2406-03andCota genotypes to water deficit in both induction methods (matric or osmotic). The tests were carried out in a greenhouse, one using hydroponics (osmotic induction) and the other in pots with soil (matric induction). In both tests, the application of stressful conditions occurred at the beginning of tuberization. Assessments of gas exchange and shoot temperature were made throughout the exposure to stress. Also, samples were collected from leaves for analysis of osmotic potential and leaves and tubers for analysis of metabolite content. At the end of the potatoplantcycle,thenumberandweightoftuberswereevaluated.Inbothstressconditions, there were significant reductions in photosynthesis and transpiration rate compared to the respective normal hydration conditions. In addition, indicators such as metabolite levels (proline and soluble sugars) were significantly altered in plants exposed to different stress inductions. These data, together with the significant limitations in the growth of stressed plants, indicate that the experimental models induce similar responses. However, the water deficit by osmotic induction was more severe for the potato plants when compared to stress due to matric induction, mainly affecting tuber production. Therefore, the water deficit osmotic induction model can be recommended for phenotyping tolerance to this stress, due to the hydroponic system inducing greater tuber production per plant under optimal cultivation conditions. MenosToselectpotatogenotypestoleranttowaterdeficit,systemstosimulatethisstresshavebeen used. Polyethylene glycol (PEG) is the main osmotic agent used for this purpose, but it causes an excessively severe stress. However, it is difficult to carry out an experiment that aims to compare plant responses under water deficit by osmotic or matric induction, and, thus,fewstudiescomparethesestress-inducingmechanisms.Therefore,theobjectiveofthis studywas to compare the responses of Agata, BRS Clara,C2406-03andCota genotypes to water deficit in both induction methods (matric or osmotic). The tests were carried out in a greenhouse, one using hydroponics (osmotic induction) and the other in pots with soil (matric induction). In both tests, the application of stressful conditions occurred at the beginning of tuberization. Assessments of gas exchange and shoot temperature were made throughout the exposure to stress. Also, samples were collected from leaves for analysis of osmotic potential and leaves and tubers for analysis of metabolite content. At the end of the potatoplantcycle,thenumberandweightoftuberswereevaluated.Inbothstressconditions, there were significant reductions in photosynthesis and transpiration rate compared to the respective normal hydration conditions. In addition, indicators such as metabolite levels (proline and soluble sugars) were significantly altered in plants exposed to different stress inductions. These data, together with the significant limitations in the growth of... Mostrar Tudo |
Thesagro: |
Batata; Genótipo; Recurso Hídrico; Stress. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/232554/1/Artigo-Responses-of-Solanum.pdf
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Marc: |
LEADER 02835naa a2200301 a 4500 001 2140920 005 2022-03-15 008 2021 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1007/s11540-020-09489-3$2DOI 100 1 $aDORNELES, A. O. S. 245 $aResponses of Solanum tuberosum L. to Water Deficit by Matric or Osmotic Induction.$h[electronic resource] 260 $c2021 520 $aToselectpotatogenotypestoleranttowaterdeficit,systemstosimulatethisstresshavebeen used. Polyethylene glycol (PEG) is the main osmotic agent used for this purpose, but it causes an excessively severe stress. However, it is difficult to carry out an experiment that aims to compare plant responses under water deficit by osmotic or matric induction, and, thus,fewstudiescomparethesestress-inducingmechanisms.Therefore,theobjectiveofthis studywas to compare the responses of Agata, BRS Clara,C2406-03andCota genotypes to water deficit in both induction methods (matric or osmotic). The tests were carried out in a greenhouse, one using hydroponics (osmotic induction) and the other in pots with soil (matric induction). In both tests, the application of stressful conditions occurred at the beginning of tuberization. Assessments of gas exchange and shoot temperature were made throughout the exposure to stress. Also, samples were collected from leaves for analysis of osmotic potential and leaves and tubers for analysis of metabolite content. At the end of the potatoplantcycle,thenumberandweightoftuberswereevaluated.Inbothstressconditions, there were significant reductions in photosynthesis and transpiration rate compared to the respective normal hydration conditions. In addition, indicators such as metabolite levels (proline and soluble sugars) were significantly altered in plants exposed to different stress inductions. These data, together with the significant limitations in the growth of stressed plants, indicate that the experimental models induce similar responses. However, the water deficit by osmotic induction was more severe for the potato plants when compared to stress due to matric induction, mainly affecting tuber production. Therefore, the water deficit osmotic induction model can be recommended for phenotyping tolerance to this stress, due to the hydroponic system inducing greater tuber production per plant under optimal cultivation conditions. 650 $aBatata 650 $aGenótipo 650 $aRecurso Hídrico 650 $aStress 700 1 $aPEREIRA, A. S. 700 1 $aSILVA, T. B. da 700 1 $aTANIGUCHI, M. 700 1 $aBORTOLIN, G. S. 700 1 $aCASTRO, C. M. 700 1 $aPEREIRA, A. da S. 700 1 $aREISSER JUNIOR, C. 700 1 $aAMARANTE, L. do 700 1 $aHAERTER, J. A. 700 1 $aDUTRA, L. F. 773 $tPotato Research$gv. 64, p. 515-534, 2021.
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Embrapa Clima Temperado (CPACT) |
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Registro Completo
Biblioteca(s): |
Embrapa Hortaliças. |
Data corrente: |
27/08/1999 |
Data da última atualização: |
27/08/1999 |
Autoria: |
SOUZA, A. F.; CALBO, A. G. |
Afiliação: |
EMBRAPA-CNPH, Brasilia, DF. |
Título: |
Correlacao entre producao de cultivares de batata-doce Ipomoea batatas Poir e fotossintese. |
Ano de publicação: |
1979 |
Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE OLERICULTURA, 19., 1979, Florianopolis, SC. Resumos... Florianopolis: EMPASC, 1979. |
Volume: |
v.1. |
Páginas: |
p.147-148. |
Idioma: |
Português |
Palavras-Chave: |
Batata-doce; Brasil; Brasilia; Consumption; Distrito Federal; Photosyntesis; Production. |
Thesagro: |
Cerrado; Consumo; Fotossíntese; Ipomoea Batatas; Produção; Raiz. |
Thesaurus NAL: |
Brazil; roots; sweet potatoes. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00918naa a2200337 a 4500 001 1765225 005 1999-08-27 008 1979 bl uuuu u00u1 u #d 100 1 $aSOUZA, A. F. 245 $aCorrelacao entre producao de cultivares de batata-doce Ipomoea batatas Poir e fotossintese. 260 $c1979 300 $ap.147-148. v.1. 490 $vv.1. 650 $aBrazil 650 $aroots 650 $asweet potatoes 650 $aCerrado 650 $aConsumo 650 $aFotossíntese 650 $aIpomoea Batatas 650 $aProdução 650 $aRaiz 653 $aBatata-doce 653 $aBrasil 653 $aBrasilia 653 $aConsumption 653 $aDistrito Federal 653 $aPhotosyntesis 653 $aProduction 700 1 $aCALBO, A. G. 773 $tIn: CONGRESSO BRASILEIRO DE OLERICULTURA, 19., 1979, Florianopolis, SC. Resumos... Florianopolis: EMPASC, 1979.
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