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Search Results: 1 - 10 of 373790 matches for " Anderson de C;Arrigoni-Blank "
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Espa?amento de plantio e intervalos de colheita na biomassa e no óleo essencial de geranio
Blank, Arie F;Silva, Anderson de C;Arrigoni-Blank, Maria de Fátima;Santos, Wallace M dos;Santana, Aléa Dayane D de;
Horticultura Brasileira , 2012, DOI: 10.1590/S0102-05362012000400029
Abstract: geranium (pelargonium graveolens) is an aromatic herb and its essential oil is commonly used in the creation of drugs and cosmetics worldwide. the plant is well adapted to the climatic conditions of the brazilian northeast, but there are few data on its quantitative and qualitative yield. the aim of this study was to evaluate the influence of plant spacing and harvest intervals of geranium on the production of biomass and essential oil. three different plant spacings (50x50, 50x60 and 50x80 cm) and three harvest intervals (8, 12 and 16 weeks) were tested. the highest values of total fresh and dry weight of leaves and stems (2679.04 g m-2; 424.62 g m-2; 1035.08 g m-2; 136.85 g m-2, respectively) and yield of essential oil (7.56 ml m-2), that are characteristics of direct interest for the market, were obtained at harvest intervals of eight weeks and at a spacing of 50x50 cm. in other analyzed variables, there was little difference between the treatments, however, long periods of harvest are less productive because decrease of values of all variables were observed in the last harvests of each interval. thus, best quantity and quality results for geranium were obtained on an interval of 8 weeks, and spacing of 50x50 cm.
Propaga??o e conserva??o in vitro de vetiver
Santos, Thatiana C;Arrigoni-Blank, Maria de Fátima;Blank, Arie F;
Horticultura Brasileira , 2012, DOI: 10.1590/S0102-05362012000300025
Abstract: vetiver (chrysopogon zizanioides) is a perennial grass which presents physicochemical and agronomic characteristics that highlights the importance of this species. from the roots of vetiver grass essential oil is extracted which is widely used for perfume production, and because of its low volatility it is used as fragrance fixer. we developed a protocol for in vitro propagation and conservation of vetiver grass. for the in vitro multiplication assay, combinations of the growth regulators bap and naa were tested. for acclimatization, substrates containing coconut coir and/or vermiculite, supplemented with limestone, npk (3-12-6) fertilizer and the salts of ms medium were tested. in the in vitro conservation assays, we evaluated the temperatures of 18 and 25°c, osmotic regulators (sacarose, manitol and sorbitol), the growth inhibitor aba, and different concentrations of ms salts. the accession ufs-vet003 can be micropropagated using ms liquid medium in the presence of 3.33 mg l-1 of bap. rooting can be obtained using ms liquid medium without growth regulators. coconut coir dust can be used as substrate for the acclimatization of micropropagated plants. in vitro conservation is possible for a period of 270 days using semi-solid medium with 25% ms salt strength and temperature of 18oc.
Densidades de plantio e doses de biofertilizante na produ??o de capim-lim?o
Blank, Arie F;Arrigoni-Blank, Maria de Fátima;Amancio, Ver?nica F;Mendon?a, Marcelo da C;Santana Filho, Luiz G M de;
Horticultura Brasileira , 2007, DOI: 10.1590/S0102-05362007000300005
Abstract: the aim of this work was to evaluate the plant density and biofertilizer levels on lemon grass (cymbopogom citratus (d.c.) stapf). the experiment was installed in split plot design with three replications, having plant density as plots (33,333; 49,382; 55,555 and 111,111 plants ha-1) and biofertilizer doses as sub plots (0; 20; 40; 60 t ha-1 year-1). nine cuttings were realized using an interval of 42 days between cuttings. we evaluated survival, plant height, number of tillers per plant, dry weight per plant and of biomass yield, essential oil content and yield. the essential oil content was not influenced by the plant densities and biofertilizer doses. the crescent density resulted in a crescent linear regression for essential oil yield and dry weight of biomass yield and in a declining linear regression for dry weight per plant. the biofertilizer dose resulted in a crescent linear regression for essential oil yield and dry weight per plant and of biomass yield. the plant density of 111.111 plants per hectare (0.30 x 0.30 m) and the biofertilizer dose of 60 t ha-1 year-1 can be recommended for lemon grass production in the first year.
Produ??o de mudas, altura e intervalo de corte em melissa
Blank, Arie F.;Fontes, Sany M.;Oliveira, Andréa dos S.;Mendon?a, Marcelo da C.;Silva-Mann, Renata;Arrigoni-Blank, Maria de Fátima;
Horticultura Brasileira , 2005, DOI: 10.1590/S0102-05362005000300018
Abstract: the effect of recipients and substrate compositions was evaluated on seedling production, the height of cutting and harvest interval on the production of lemon balm (melissa officinalis l.) cultivated in greenhouse. for the transplants trial a randomized experimental design in factorial scheme 5 x 4 with three replications was used. five compositions of vermicompost (v) and bovine manure (b) (1v:0b; 2v:1b; 1v:1b; 1v:2b; 0v:1b) and four concentrations of the compositions mixed with coconut dust (0; 20; 40; 60%). for the harvest interval essay a completely randomized block experimental design was used, in a 4 x 2 factorial scheme with three replications using the split plot model. in the plots four harvest intervals (every 8; 9; 10 and 11 weeks) and in the split-plots two cutting heights (5 and 10 cm) were evaluated. in the seedling essay the presence of vermicompost on the substrate composition resulted in vigorous transplants. better root system was observed in treatments using 60% of vermicompost and 40% of coconut dust followed by the substrate composed of 26.7% of vermicompost, 13.3% of bovine manure and 60% of coconut dust, which also proportioned highest plant height. in the regrowth essay the cutting at 5 cm of height resulted in a reduction of plant survival, and this fact did not affect the dry matter of leaves per plant. harvesting of regrowth plants can be carried out eleven weeks after the first cutting.
Influência do armazenamento de folhas secas no óleo essencial de patchouli (Pogostemon cablin Benth.)
Sant'ana, Trícia Cavalcanti Pergentino de;Blank, Arie Fitzgerald;Vieira, Sylvia Dantas;Arrigoni-Blank, Maria de Fátima;Jesus, Hugo César R. de;Alves, Péricles Barreto;
Química Nova , 2010, DOI: 10.1590/S0100-40422010000600008
Abstract: the aim of this work was to evaluate the influence of five storage times of dry leaves of two patchouli genotypes on its essential oil content and chemical composition. harvest was realized four months after planting. storage influenced essential oil content of genotype pog-002. patchoulol was the majority compound. storage of dry leaves increased significatively the content of the compounds α-bulnesene and germacrene a of genotype pog-021 and longicanfenilone, pogostol and patchoulol of pog-002. however, storage reduced significatively the content of the compounds cicloseichelene, β-cariofilene, α-guaiene, acifilene and α-bulnesene of the essential oil of genotype pog-002.
Caracteriza??o morfológica e agron?mica de acessos de manjeric?o e alfavaca
Blank, Arie F.;Carvalho Filho, José L.S. de;Santos Neto, Ant?nio L. dos;Alves, Péricles B.;Arrigoni-Blank, Maria de Fátima;Silva-Mann, Renata;Mendon?a, Marcelo da C.;
Horticultura Brasileira , 2004, DOI: 10.1590/S0102-05362004000100024
Abstract: the sweet basil (ocimum basilicum l.), can be an annual or a perennial plant depending on the place where it is grown. this plant has several culinary, ornamental, medicinal and aromatic uses. the value of its essential oil in the international market depends on the percentage of linalool. we characterized the morphologic and agronomic qualities of the ocimum accessions, to select genotypes with higher yield of essential oil rich in linalool. experiment design consisted of randomized blocks with two replications, evaluating 55 genotypes of the germplasm bank of ocimum from the universidade federal do sergipe, brazil. the plant height, dry matter of the aerial plant parts, essential oil content and yield were evaluated. a wide diversity among the genotypes was observed for all morphological and agronomical traits evaluated. a large amplitude occurred among genotypes regarding the content of essential oil from 0,202 to 2,536 ml/100g. for the essential oil yield an amplitude from 1,103 to 21,817 l/ha was observed. evaluating the traits content and yield of o. basilicum essential oil the genotypes nsl6421, pi197442, pi358464, pi414194, pi531396 and 'fino verde' can be selected for breeding programs to obtain cultivars with a high yield of essential oil rich in linalool.
Influence of season, harvest time and drying on Java citronella (Cymbopogon winterianus Jowitt) volatile oil
Blank, Arie F.;Costa, Andressa G.;Arrigoni-Blank, Maria de Fátima;Cavalcanti, Sócrates C. H.;Alves, Péricles B.;Innecco, Renato;Ehlert, Polyana A. D.;Sousa, Inajá Francisco de;
Revista Brasileira de Farmacognosia , 2007, DOI: 10.1590/S0102-695X2007000400014
Abstract: java citronella (cymbopogon winterianus jowitt) is member of the poaceae family. java citronella volatile oil has been reported to be among the volatile oils, showing repellent, antimycotic, and acaricide activities. it has been known that agronomical factors have a great effect on both the quality and quantity of essential metabolites. for this reason, it is necessary to determine optimum levels of agronomical factors affecting plant growth and production. harvest time and drying are very important agronomical factors. this study has been conducted in the research farm of the " universidade federal de sergipe" , agronomical engineering department along 2002-2003 on the base of factorial experiment in randomized complete block design with three replications. java citronella was cultivated in a 60 x 60 cm space. early, midday, and late harvest at 9:00 h, 12:00 h, and 15:00 h were conducted on four different seasons. fresh and dried leaves were used on the experiments. in order to study the effects of harvest time and drying, yields of dry and fresh herbage (kg/ha), moisture content (%), volatile oil content (%) and yield (l/ha), and chemical composition of the volatile oil were measured. seasonal changes had significant effect on yield of fresh herbage, yield and volatile oil content. maximum volatile oil yields were observed at 9:00 during summer, winter, and spring. volatile oil content was influenced by season and drying, but not influenced by harvest time.
Influence of the harvesting time, temperature and drying period on basil (Ocimum basilicum L.) essential oil
Carvalho Filho, José Luiz S.;Blank, Arie F.;Alves, Péricles B.;Ehlert, Polyana A.D.;Melo, Alberto S.;Cavalcanti, Sócrates C.H.;Arrigoni-Blank, Maria de Fátima;Silva-Mann, Renata;
Revista Brasileira de Farmacognosia , 2006, DOI: 10.1590/S0102-695X2006000100007
Abstract: ocimum basilicum l. essential oil with high concentration of linalool is valuable in international business. o. basilicum essential oil is widely used as seasoning and in cosmetic industry. to assure proper essential oil yield and quality, it is crucial to determine which environmental and processing factors are affecting its composition. the goal of our work is to evaluate the effects of harvesting time, temperature, and drying period on the yield and chemical composition of o. basilicum essential oil. harvestings were performed 40 and 93 days after seedling transplantation. harvesting performed at 8:00 h and 12:00 h provided higher essential oil yield. after five days drying, the concentration of linalool raised from 45.18% to 86.80%. o. basilicum should be harvested during morning and the biomass dried at 40oc for five days to obtain linalool rich essential oil.
Chemical composition and antimicrobial activity of the essential oil of Hyptis pectinata (l.) Poit.
Santos, Patrícia O.;Costa, Marcilene de J. C.;Alves, José A. B.;Nascimento, Paula F. C.;Melo, Dangelly L. F. M. de;Barbosa Jr., Ant?nio M.;Trindade, Rita de C.;Blank, Arie F.;Arrigoni-Blank, Maria F.;Alves, Péricles B.;Nascimento, Maria da Paz F. do;
Química Nova , 2008, DOI: 10.1590/S0100-40422008000700009
Abstract: essential oil was extracted from leaves of hyptis pectinata using hydrodistillation, and its composition determined using gc-fid and gc-ms. chemical analysis showed that there was a predominance of sesquiterpenes, of which β-caryophyllene (18.34%), caryophyllene oxide (18.00%) and calamusenone (24.68%) were measured for the first time in the genus hyptis. twenty-one compounds were identified, and calamusenone was isolated using preparative thin layer chromatography with a silica gel plate (60 pf254). the minimal inhibitory concentration (mic) and minimal microbicidal concentration (mmc) were determined for various pathogenic microorganisms. h. pectinata oil was most effective against gram (+) bacteria and yeasts.
Organogênese direta e aclimatiza??o de plantas de patchouli
Arrigoni-Blank, Maria de Fátima;Santos, Aline V;Blank, Arie F;
Horticultura Brasileira , 2011, DOI: 10.1590/S0102-05362011000200002
Abstract: patchouli is an aromatic species whose essential oil is largely employed by perfume industry. this conventional propagation is carried out using cuttings. micropropagation is an alternative for clonal propagation of pathogens free individuals in large scale. we analyzed the influence of different combinations of auxins and kinetin in patchouli organogenesis and different kinds of substrate mixtures for the acclimatization of micropropagated plantlets. two tests of organogenesis induction were carried out. in the first, five kinetin concentrations (0.0; 1.0; 2.0; 4.0 and 6.0 mg l?1) and four iaa concentrations (0.0; 0.5; 1.0 and 2.0 mg l-1) were tested, and in the second, five kinetin concentrations (0.0; 0.5; 1.0; 2.0 and 4.0 mg l-1) and three naa concentrations (0.0; 0.1 and 0.5 mg l-1). for acclimatization the following substrates were analyzed: coconut dust + formulated fertilizer (npk 3-12-6 + ca, s, zn, b, cu, fe, mn and b at 3.0; 2.5; 0.1; 0.025; 0.01; 0.075; 0.05 and 0.0015%, respectively) at the concentration of 12 g l-1 + limestone (1 g l-1) [pbc]; coconut dust + vermiculite (2:1) + formulated fertilizer at the concentration of 12 g l-1 + limestone (1 g l-1) [pbcv (2:1)]; coconut dust + vermiculite (1:1 v/v) + formulated fertilizer at the concentration of 12 g l-1 + limestone (1 g l-1) [pbcv (1:1)]; coconut dust + limestone (1 g l-1) + ms salts [pcms]; vermiculite added with ms salts, using 15 ml of the salt mixture per plant [vms]; vermiculite + formulated fertilizer at the concentration of 12 g l-1 [vmb]. direct organogenesis can be promoted by ms medium supplemented with 2.47 mg l-1 of kinetin and 0.1 mg l-1 of naa. the shoot elongation, individualization and shoot rooting steps, however, were promoted in ms medium without growth regulators. for acclimatization one of the best results was obtained using pbcv (1:1).
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