Consulta: creatorFacets:"Ferreira,Leonardo Cesar"
Registros recuperados: 4
Data/hora: 05/06/2024 06:34:19

ETHEPHON AND CALCIUM CHLORIDE, A COMBINATION THAT IMPROVES SKIN COLOR OF ‘RUBI’ TABLE GRAPE
Provedor de dados: 94
Autores: Scavroni,Joseane; Ferreira,Leonardo Cesar; Ferrarese,Maria de Lourdes Lucio; Ono,Elizabeth Orika; Rodrigues,João Domingos.
ABSTRACT  ‘Rubi’ table grape has wide acceptance of the consumer market due to its affordable price and attractive color as a function of the accumulation of anthocyanins. However, environmental conditions do not always favor the suitable accumulation of these pigments, resulting in commercial devaluation and nutritional depreciation of fruits. Thus, the present study aimed to investigate the effect of application of different ethephon concentrations, associated or not with CaCl2 application, on the skin color and quality of ‘Rubi’ grape berries. First, specific traits of berries treated with 0, 200, 400, 600, 800 mg L-1 ethephon associated with 1.5% CaCl2 solution were evaluated and pH, titratable acidity (TA), soluble solids (SS), berry firmness, total...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Vitis vinifera L.; Ethylene; Calcium; Anthocyanins; Flavonols; Sugars; Phenylalanine ammonia lyase; Glutathione S-transferase.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452018000100103

Nitric oxide in plants: a brief discussion on this multifunctional molecule
Provedor de dados: 63
Autores: Ferreira,Leonardo Cesar; Cataneo,Ana Catarina.
Several studies were carried out in order to improve the knowledge about the occurrence and activity of nitric oxide (NO) in plants. Thus, this review discusses some aspects related to NO in plants such as chemical properties, synthesis pathways, physiological effects, antioxidant action, signal transduction, interaction with plant hormones and gene expression. In the last years, many advances have been obtained regarding NO synthesis and its physiological effects in plants. However, the molecular mechanisms underlying its effects remain poorly understood. It is signalized that tight interplays among NO, Ca2+, cyclic ADP ribose (cADPR), and protein kinases need to be investigated in details. In addition, it has not yet been possible to identify a plant...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Pathogenesis; Plant hormones; Plant signal transduction; Reactive oxygen species.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162010000200017

Development of mint (Mentha piperita L.) grown on biosolids: evaluation of productivity and essential oil content
Provedor de dados: 52
Autores: Scavroni,Joseane; Ferreira,Leonardo Cesar; Valmorbida,Janice; Boaro,Carmen Sílvia Fernandes.
Development of Mentha piperita L . on biosolids amended soil with levels equivalent to 0, 28, 56 and 112 t ha-1 was evaluated. In order to measure the productivity and its relation with mint essential oil yield, different indices were determined: leaf area, total and several organ dry matter, leaf area ratio, specific leaf area, net assimilation rate and relative growth rate at 30, 44, 58, 72 and 86 days after planting (DAP), and essential oil yield at 90, 110 and 120 DAP. Physiological indices revealed that biosolids prolonged the vegetative phase of the plants, which adapted themselves to the presence of biosolids with time. Plants showed inverse behaviors in relation to productivity, resulting from the primary metabolism, represented by the shoot dry...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Growth analysis; Peppermint; Essential oil; Sewage-sludge; Leaf area; Dry matter.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000200014

Yield and composition of the essential oil of Mentha piperita L. (Lamiaceae) grown with biosolid
Provedor de dados: 61
Autores: Scavroni,Joseane; Boaro,Carmen Sílvia Fernandes; Marques,Márcia Ortiz Mayo; Ferreira,Leonardo Cesar.
This research evaluated the effects of biosolid levels on yield and chemical composition of Mentha piperita L. essential oil. Mint plants were grown in a greenhouse in pots containing the equivalent to 0, 28, 56, and 112 t.ha-1 biosolid. Three evaluations were made at 90, 110, and 120 days after planting (DAP). The oil was extracted from the dry matter of shoots by hydrodistillation, and composition was determined by GC/MS. Oil production was slightly affected by the biosolid, increasing when plants were grown with 28 t.ha-1, a condition which did not result in quality improvement. Menthyl acetate was the component obtained at the highest percentage in all treatments. At 90 DAP, plants showed a higher percentage of menthol, the second-highest oil...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Menthol; Menthyl acetate; Peppermint; Sewage-sludge.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202005000400002