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Accumulation of organic solutes and enzymatic activity in cut roses (Rosaceae) cultivated with physiological effect products in the Sub- Middle São Francisco River Valley Ciência Rural
Silva,Maria de Lourdes Neres da; Santos,Mariana Correia; Barbosa,Mayara Suzanne de Melo; Sabino,João Henrique Ferreira; Ribeiro,Hugo Leonardo Coelho; Ramos,Anamaria Ribeiro Pereira; Silva,Marcelle Almeida da; Beckmann-Cavalcante,Márkilla Zunete.
ABSTRACT: The aim of the present study was to evaluate the accumulation of carbohydrates, protein, and proline as well as the activity of the antioxidant enzymes superoxide dismutase and catalase in the Ambiance cultivar of cut rose plants grown with the application of physiological effect products in the Sub-Middle São Francisco River Valley in Brazil. The experiment was performed under a mesh screen with 50% shading. The experimental design used randomized blocks with four repetitions and six treatments: T1) control (water); T2) boscalid; T3) pyraclostrobin; T4) boscalid + pyraclostrobin (T2 + T3); T5) fluxapyroxad + pyraclostrobin; T6) plant growth regulators 4-(indol-3-yl) butyric acid (IBA) + gibberellic acid (GA3) + kinetin; these treatments were...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Rosa spp.; Strobilurins; Plant growth regulators; Carbohydrates; Antioxidant enzymes..
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019001200401
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Germinative metabolism of Caatinga forest species in biosaline agriculture. Repositório Alice
DANTAS, B. F.; RIBEIRO, R. C.; MATIAS, J. R.; ARAUJO, G. G. L. de.
The production of seeds and seedlings by these species is of utmost importance to prevent a loss of biodiversity of the Caatinga, a unique and exclusively Brazilian biome. Biosaline agriculture is conducted over a range of salinity levels in groundwater and/or in soils. The current study evaluated the application of biosaline agriculture to Anadenanthera macrocarpa, Myracrodruon urundeuva, Aspidosperma pyrifolium and Erythrina velutina by examining the germinative metabolism of seeds subjected to different electrical conductivities (ECs) of NaCl solutions and biosaline water. The seeds were germinated in biosaline water (4.94 dS.m-1) and in NaCl solutions with ECs of 0, 2, 4, 6, 8, 10, 12, 14, 16 and 18 dS.m-1 at 25 °C, 12-h photoperiod. The kinetic...
Tipo: Artigo de periódico Palavras-chave: Agricultura biossalina; Espécie florestal; Antioxidant enzymes.; Caatinga; Biodiversidade; Anadenanthera Macrocarpa; Aspidosperma Pyrifolium; Germinação; Myracrodruon Urundeuva.; Muda; Salt stress; Erythrina velutina..
Ano: 2014 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/991569
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Tolerance of Coffea arabica L. seeds to sub zero temperatures Ciência e Agrotecnologia
Coelho,Stefania Vilas Boas; Rosa,Sttela Dellyzete Veiga Franco da; Clemente,Aline da Consolação Sampaio; Pereira,Cristiane Carvalho; Figueiredo,Madeleine Alves de; Reis,Leandro Vilela.
ABSTRACT Preservation of the quality of coffee seeds is hindered by their intermediate behavior in storage. However, long-term storage at sub zero temperatures may be achieved by adjusting the water content of the seeds. The aim of this study was to evaluate the tolerance of coffee seeds to freezing, in relation to physiological and enzymatic modifications. Coffee seeds were dried in two manners, rapid and slow, to water contents of interest, 0.67, 0.43, 0.25, 0.18, 0.11, and 0.05 g H2O g-¹ dw (dry basis). After drying, the seeds were stored at a temperature of -20 ºC and of 86 ºC for 24 hours and for 12 months, and then compared to seeds in cold storage at 10 ºC. The seeds were evaluated through calculation of percentage of normal seedlings, percentage of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Drying; Silica gel; Saturated saline solutions; Freezing; Antioxidant enzymes..
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542017000300312
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