Consulta: creatorFacets:"Morais,Marciana B. de"
Registros recuperados: 3
Data/hora: 02/06/2024 16:30:35

Production and antioxidative metabolism in bell pepper grown with saline water in hydroponic system
Provedor de dados: 91
Autores: Lima,Nadielan da S.; Morais,Marciana B. de; Silva,Ênio F. de F. e; Camara,Terezinha R.; Willadino,Lilia.
ABSTRACT This study aimed to evaluate the effect of salt stress on production and antioxidative defense metabolism of two bell pepper cultivars (Capsicum annuum L.) grown hydroponically. The experimental design was in randomized blocks, with treatments arranged in a 5 x 2 factorial scheme with five replicates. The treatments consisted of five salinity levels of the nutrient solution (2.0, 3.5, 4.5, 5.5 and 6.5 dS m-1) with two bell pepper cultivars, ‘Bruno’ and ‘Rúbia’. Biomass and yield were reduced with increasing salinity. The contents of chlorophyll a, b and total decreased with increasing salinity. There was an increase in proline content and activity of superoxide dismutase (SOD), catalase (CAT) and ascorbate peroxidase (APX), showing the activation...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Electrical conductivity; Photosynthetic pigment; Antioxidant enzymes.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017001000675

Crescimento de genótipos diplóides de bananeira submetidos ao estresse salino
Provedor de dados: 91
Autores: S. Junior,Gilberto de S. E.; Morais,Marciana B. de; Camara,Terezinha R.; Willadino,Lilia.
Neste trabalho foram avaliados dez genótipos diplóides de bananeira (Musa spp) quanto a tolerância à salinidade, estresse abiótico que limita a produtividade da cultura. As plantas foram cultivadas durante 21 dias, em solução acrescida ou não de 100 mol m-3 de NaCl e analisadas variáveis de crescimento que incluem área foliar, biomassa fresca e seca, alocação de biomassa e taxa de crescimento. O experimento foi conduzido em delineamento inteiramente casualizado em fatorial 10 x 2 e três repetições. Na maioria dos genótipos estudados a salinidade provocou reduções em quase todas as variáveis analisadas. O genótipo Lidi destacou-se por apresentar melhor adaptação ao estresse salino, em todas as variáveis biométricas e capacidade de manutenção, sob estresse,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Musa spp.; Área foliar; Biomassa seca; Taxa de crescimento.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662012001100001

Arbuscular mycorrhizal fungi and auxin associated with microelements in the development of cuttings of Varronia leucocephala
Provedor de dados: 91
Autores: Fernandes,Mônica D. S. da S.; Morais,Marciana B. de; Mesquita-Oliveira,Francisco F.; Ulisses,Cláudia; Medeiros,José F. de; Albuquerque,Cynthia C. de.
ABSTRACT The plant Varronia leucocephala is widely used in Brazil for its therapeutic properties. However, a major problem for the seedlings is the low percentage of root formation. The objective of this study was to establish a rooting protocol for V. leucocephala cuttings, using phytoregulators and microelements associated with arbuscular mycorrhizal fungi. The auxin indole-3-butyric acid (IBA) concentration of 1500 mg L-1 showed the best rooting percentage, and it is proposed associating the microelements zinc and boron with the highest IBA doses. Although an increase in the rooting percentage was observed in the presence of zinc, it was not the most suitable for improving the percentage of propagation. Consequently, association of arbuscular...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Boron; Rooting; Zinc.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019000300167