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	Provedor de dados Braz. J. Plant Physiol. (2) Planta Daninha (1) Autor Bacarin,Marcos A. (2) Bacarin,M.A. (1) Bianchi,Valmor J. (1) Cassol,Daniela (1) Falqueto,Antelmo R. (1) Farias,M.E. (1) Farias,Márcio E. (1) Magalhães Júnior,Ariano M. (1) Martinazzo,E.G. (1) Martinazzo,Emanuela G. (1) Oliveira,Antônio C. (1) Perboni,A.T. (1) Perboni,Anelise T. (1) Pinto,J.J.O. (1) Silva,Fabio S. P. (1) Sousa,C.P. (1) Mais... Palavra-chave JIP-test (3) Oryza sativa (2) ALS-inhibitors (1) Abiotic stress (1) Chlorophyll a fluorescence (1) Gas exchange (1) Non-photochemical quenching coefficient (1) PSII photochemical efficiency (1) Performance index (1) Photosystems (1) Prunus dulcis Mill. × Prunus persica L. Bastsch (1) Stay green mutant rice (1) Mais... Tipo do documento Info:eu-repo/semantics/article (3) Ano 2014 (1) 2011 (1) 2010 (1) País Brazil (3) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Photosynthetic activity in the rootstock of hybrid peach trees submitted to water restriction and flooding Braz. J. Plant Physiol. Martinazzo,Emanuela G.; Perboni,Anelise T.; Farias,Márcio E.; Bianchi,Valmor J.; Bacarin,Marcos A.. This study aimed to evaluate the effect of flooding and water restriction (drought) on the photosynthetic activity in plants of the hybrid rootstock 'GxN-9' (Prunus dulcis Mill. × Prunus persica L. Bastsch), grown in a greenhouse. Chlorophyll fluorescence and gas exchange were analyzed in plants of approximately 12 months. The reduction of photosynthetic activity in both the stresses were associated with decreased carboxylation efficiency, but without affecting the internal concentration of carbon dioxide. The JIP-test parameters revealed changes in the energy flux processes demonstrating that in terms of flooding the rootstock GxN-9 the rate of photosynthetic performance significantly decreases, resulting in a considerable decrease in net assimilation... Tipo: Info:eu-repo/semantics/article Palavras-chave: Abiotic stress; Chlorophyll a fluorescence; Gas exchange; JIP-test; Prunus dulcis Mill. × Prunus persica L. Bastsch. Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202011000300007 Chlorophyll fluorescence in rice: probing of senescence driven changes of PSII activity on rice varieties differing in grain yield capacity Braz. J. Plant Physiol. Falqueto,Antelmo R.; Silva,Fabio S. P.; Cassol,Daniela; Magalhães Júnior,Ariano M.; Oliveira,Antônio C.; Bacarin,Marcos A.. With Japonica rice BRS Firmeza and indica rice BRS Pelota (low and high grain yield, respectively) as materials, Chl content and Chl a fluorescence parameters in flag leaves from the heading to mature grain stage were investigated. The Chl content and the Chl a fluorescence were measured using a portable chlorophyll meter CL-01 and portables fluorometer Handy-PEA and FMS-2 (Hansatech, Kings Lynn, UK), respectively. All measurements were taken on middle part of the flag leaves (n = 10). The results showed that the Chl content and Chl a fluorescence parameters declined after full expansion of flag leaves in both rice cultivars. However, these biochemical and photochemical parameters did not show similar changing pattern and the behavior of flag leaves... Tipo: Info:eu-repo/semantics/article Palavras-chave: JIP-test; Non-photochemical quenching coefficient; Oryza sativa; Performance index; PSII photochemical efficiency; Stay green mutant rice. Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202010000100004 Chlorophyll a fluorescence in rice plants exposed of herbicides of group imidazolinone Planta Daninha Sousa,C.P.; Pinto,J.J.O.; Martinazzo,E.G.; Perboni,A.T.; Farias,M.E.; Bacarin,M.A.. The objective of this work was to investigate the injuries caused to the photosynthetic apparatus of three types of rice exposed to application of imidazolinone group herbicides. Two experiments were conducted using herbicides Imazethapyr+imazapic and Imazapyr+imazapic, in a split-plot experimental design, and a 3 x 3 factorial, with six replications. The first factor (A) consisted of the herbicide rates 0, 100 e 200 g ha-1 of Imazethapyr+imazapic and 0, 140 e 280 g ha-1 of Imazapyr+imazapic; factor B consisted of type of rice (cv. Puitá Inta CL, sensitive red rice ecotype and red rice ecotype with suspected herbicide tolerance to Imidazolinone). Chlorophyll a fluorescence parameters were evaluated in plants at 30 days after herbicide application, using a... Tipo: Info:eu-repo/semantics/article Palavras-chave: ALS-inhibitors; Oryza sativa; Photosystems; JIP-test. Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582014000100016 Registros recuperados: 3 Primeira ... 1 ... Última

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