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Biblioteca(s): |
Biblioteca Rui Tendinha. |
Data corrente: |
15/09/2023 |
Data da última atualização: |
15/09/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
CERRI NETO, B.; SILVA, F.R.N.; FERREIRA, T.R.; CRASQUE, J.; ARANTES, L. de O.; MACHADO FILHO, J. A.; SOUZA, T. C. de; FALQUETO, A. R .; DOUSSEAU, S. |
Afiliação: |
Basilio Cerri Neto, Incaper/Estágio; Lucio de Oliveira Arantes, Incaper; José Altino Machado Filho, Incaper; Sara Dousseau Arantes, Incaper. |
Título: |
Responses of wild Piper species to drought and rehydration cycles considering stomatal closure as a marker of the alarm phase. |
Ano de publicação: |
2023 |
Fonte/Imprenta: |
PHOTOSYNTHETICA, v. 61, n. 3, p. 363-376, 2023. |
Idioma: |
Português |
Conteúdo: |
Studies that simulate recurrent drought events with subsequent episodes of rehydration better reflect natural conditions and allow visualization of differential acclimatization responses resulting from memory and tolerance mechanisms. Piper aduncum and Piper tuberculatum were grown in a greenhouse and were subjected to three successive cycles of drought and subsequent rehydration. After suspending irrigation, gas exchanges were measured daily with IRGA. When stomatal conductances close to zero were obtained, the plants were rehydrated and kept irrigated. In P. tuberculatum, stomatal conductance was always higher after periods of rehydration compared to the period before the drought, while the transpiration rate was lower only during the drought. The damage to the photosynthetic apparatus was caused by the influence of the interception of the flow of electrons in the transport chain. We came to the conclusion that the dehydrated plants showed an alert signal, which triggered response mechanisms to prevent or deal with the water
stress situation. |
Thesagro: |
Pimenta; Piper Umbellatum; Piperaceae. |
Categoria do assunto: |
-- |
URL: |
https://biblioteca.incaper.es.gov.br/digital/bitstream/item/4478/1/piper.pdf
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Marc: |
LEADER 01819naa a2200253 a 4500 001 1025047 005 2023-09-15 008 2023 bl uuuu u00u1 u #d 100 1 $aCERRI NETO, B. 245 $aResponses of wild Piper species to drought and rehydration cycles considering stomatal closure as a marker of the alarm phase.$h[electronic resource] 260 $c2023 520 $aStudies that simulate recurrent drought events with subsequent episodes of rehydration better reflect natural conditions and allow visualization of differential acclimatization responses resulting from memory and tolerance mechanisms. Piper aduncum and Piper tuberculatum were grown in a greenhouse and were subjected to three successive cycles of drought and subsequent rehydration. After suspending irrigation, gas exchanges were measured daily with IRGA. When stomatal conductances close to zero were obtained, the plants were rehydrated and kept irrigated. In P. tuberculatum, stomatal conductance was always higher after periods of rehydration compared to the period before the drought, while the transpiration rate was lower only during the drought. The damage to the photosynthetic apparatus was caused by the influence of the interception of the flow of electrons in the transport chain. We came to the conclusion that the dehydrated plants showed an alert signal, which triggered response mechanisms to prevent or deal with the water stress situation. 650 $aPimenta 650 $aPiper Umbellatum 650 $aPiperaceae 700 1 $aSILVA, F.R.N. 700 1 $aFERREIRA, T.R. 700 1 $aCRASQUE, J. 700 1 $aARANTES, L. de O. 700 1 $aMACHADO FILHO, J. A. 700 1 $aSOUZA, T. C. de 700 1 $aFALQUETO, A. R . 700 1 $aDOUSSEAU, S. 773 $tPHOTOSYNTHETICA$gv. 61, n. 3, p. 363-376, 2023.
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Biblioteca Rui Tendinha (BRT) |
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Registro Completo |
Biblioteca(s): |
Biblioteca Rui Tendinha. |
Data corrente: |
12/08/2019 |
Data da última atualização: |
12/08/2019 |
Tipo da produção científica: |
Publicação em Anais de Congresso |
Autoria: |
FERRÃO, R. G.; FERRÃO, M. A. G.; FONSECA, A. F. A. da.; CRUZ, C. D.; CECON, P. R.; CRESCENCIO, P. C. S. |
Afiliação: |
Romário Gava Ferrão, Incaper; Maria Amélia Gava Ferrão, Incaper/Embrapa Café; Aymbiré Francisco Almeida da Fonseca, Incaper/Embrapa Café; UFV; UFV; UFV. |
Título: |
Genetic divergence in clones of Coffea canephora variety conilon by different methods of multivariate analysis. |
Ano de publicação: |
2008 |
Fonte/Imprenta: |
In: 22nd International Conference on Coffee Science, ASIC 2008, Campinas, SP, Brazil, 14-19 September, 2008. |
Idioma: |
Inglês |
Conteúdo: |
The objective of this work was to study by different methods of multivariate analysis the genetic divergence of forty genotypes of conilon coffee of the Coffee Genetic Improvement Program of the Capixaba Institute of Research - Incaper. In the analysis of dissimilarity, evaluated by the generalized distance of Mahalanobis, the genotypes most dissimilar were ES 318 and ES 01 in Sooretama, and ES 309 and ES 315 in Marilândia, Those most similar were ES 330 and ES 336 in Sooretama and ES 324 and ES 333 in Marilândia. In the study of clustering by the technique of Tocher, the genotypes were distributed in ten groups in
Sooretama and five in Marilândia. In both locations there was good agreement in the disposition of the genotypes,in amount of genetic divergence, when the hierarchical nearest neighbor method and the method of Tocher were used. We verified good genetic divergence among the clones for the differents biometric methodologies studies. The results obtained, associated to the main agronomic characteristics evaluated, were important for the strategies addressing genetic improvement through sexual and asexual reproduction and propagation. The clones ES 01, ES 308, ES 309, ES 311, ES 321, ES 327, ES 328, ES 329, ES 330 and ES
337 are promising clones to be maintained and used in the Program of Improvement. |
Palavras-Chave: |
Café conilon. |
Thesaurus NAL: |
Coffea canephora; Coffee Genetic; Methods; Multivariate analysis; Propagation. |
Categoria do assunto: |
G Melhoramento Genético |
URL: |
https://biblioteca.incaper.es.gov.br/digital/bitstream/123456789/3695/1/genetic-divergence-ferrao.pdf
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Marc: |
LEADER 02127nam a2200241 a 4500 001 1021552 005 2019-08-12 008 2008 bl uuuu u01u1 u #d 100 1 $aFERRÃO, R. G. 245 $aGenetic divergence in clones of Coffea canephora variety conilon by different methods of multivariate analysis.$h[electronic resource] 260 $aIn: 22nd International Conference on Coffee Science, ASIC 2008, Campinas, SP, Brazil, 14-19 September$c2008 520 $aThe objective of this work was to study by different methods of multivariate analysis the genetic divergence of forty genotypes of conilon coffee of the Coffee Genetic Improvement Program of the Capixaba Institute of Research - Incaper. In the analysis of dissimilarity, evaluated by the generalized distance of Mahalanobis, the genotypes most dissimilar were ES 318 and ES 01 in Sooretama, and ES 309 and ES 315 in Marilândia, Those most similar were ES 330 and ES 336 in Sooretama and ES 324 and ES 333 in Marilândia. In the study of clustering by the technique of Tocher, the genotypes were distributed in ten groups in Sooretama and five in Marilândia. In both locations there was good agreement in the disposition of the genotypes,in amount of genetic divergence, when the hierarchical nearest neighbor method and the method of Tocher were used. We verified good genetic divergence among the clones for the differents biometric methodologies studies. The results obtained, associated to the main agronomic characteristics evaluated, were important for the strategies addressing genetic improvement through sexual and asexual reproduction and propagation. The clones ES 01, ES 308, ES 309, ES 311, ES 321, ES 327, ES 328, ES 329, ES 330 and ES 337 are promising clones to be maintained and used in the Program of Improvement. 650 $aCoffea canephora 650 $aCoffee Genetic 650 $aMethods 650 $aMultivariate analysis 650 $aPropagation 653 $aCafé conilon 700 1 $aFERRÃO, M. A. G. 700 1 $aFONSECA, A. F. A. da. 700 1 $aCRUZ, C. D. 700 1 $aCECON, P. R. 700 1 $aCRESCENCIO, P. C. S.
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