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Search Results: 1 - 10 of 145213 matches for " Arie F;Arrigoni-Blank "
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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).
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.
Produ??o de mudas de capim-lim?o em diferentes recipientes e substratos
Blank, Arie F;Arrigoni-Blank, Maria de Fátima;Moreira, Maria A;Amancio, Ver?nica F;
Horticultura Brasileira , 2009, DOI: 10.1590/S0102-05362009000400018
Abstract: the effect of recipients, substrate mixtures, diameters of tillers and of different leaf lengths kept on the tiller was evaluated for transplant production of lemon grass (cymbopogon citratus (d.c.) stapf.). in the first assay, we tested two recipients and nine mixtures of substrates. the tublet recipient of 110 cm3 was better than the expanded polystyrene foam bed with 72 cells of 121.2 cm3 and all the tested substrates (coconut dust, carbonized rice hulls and bovine manure at rates of 1:1:2, and coconut dust, carbonized rice hulls, soil and bovine manure at rates of 1:1:1:3) resulted in good quality of lemon grass transplants. in the second assay, we tested two tiller diameters (>1.5 and <1.5 cm) and the maintenance of four leaf lengths on tiller (0, 3, 6 and 9 cm). it was concluded that if tillers were thicker than 1.5 cm diameter, then 5.5 cm of leaf length should be kept and if the tiller diameter were inferior to 1.5 cm, then the total leaf area should be cut off in order to promote tilling.
Efeitos da aduba??o química e da calagem na nutri??o de melissa e hortel?-pimenta
Blank, Arie F;Oliveira, Andréa dos S;Arrigoni-Blank, Maria de Fátima;Faquin, Valdemar;
Horticultura Brasileira , 2006, DOI: 10.1590/S0102-05362006000200014
Abstract: this work aimed to evaluate the effects of chemical fertilization and liming on growth and nutrition of lemon balm (melissa officinalis) and peppermint (mentha piperita), using the missing element technique. treatments were: complete (fertilized with n, p, k, s, b, cu, fe and zn+ liming); complete - liming; complete -n; complete -p; complete -k; complete -s; complete -b; complete -zn; complete -fe and control (natural soil). the following results were obtained within 120 days after sowing: liming and fertilization are essential for lemon balm and peppermint growth. in the soil used in this experiment the nutrients which showed highest results on growth and nutrition of lemon balm and peppermint were n and p, besides liming.
Utiliza??o de paclobutrazol em vetiver na produ??o de mudas e seu efeito em plantas no campo
Blank, Arie F;Paula, José WA de;Arrigoni-Blank, Maria de Fátima;Moreira, Maria A;
Horticultura Brasileira , 2009, DOI: 10.1590/S0102-05362009000400005
Abstract: the effect of paclobutrazol was evaluated on plantlet production of different vetiver genotypes (assay 1) and on plants under field conditions (assay 2). in the first assay, two vetiver genotypes from the germplasm repository of sergipe federal university, brazil (ufs-vet001 and ufs-vet003), seven concentrations of paclobutrazol and two moments of application (7 and 14 days after planting) were evaluated. in the field assay, the treatments were three vetiver genotypes and three methods of application of paclobutrazol. two product applications were performed at plantlet stage and one when plants were in the field. the application on 14-day old plants in the nursery reduced plant height and dry weight ofaerial part and roots. the highest paclobutrazol concentration (1,800 mg l-1) resulted in shorter plants and lower dry weight of aerial part. paclobutrazol did not influence the number of tillers per plant and should not be recommended for production of vetiver plantlets. in the field assay, the genotypes ufs-vet001 and ufs-vet004 had major tillering at 133 days after transplanting; there were no significant differences between the genotypes for the variables number of ears, plant height, dry weight of aerial part and roots, and essential oil content. the application of paclobutrazol proportioned reduction on the number of ears and plant height, but did not affect dry weight of aerial part and roots. paclobutrazol should not be recommended for commercial production of vetiver roots because it did not reduce the aerial part and did not increase roots and essential oil yield as well.
Aduba??o química e calagem em erva-baleeira
Arrigoni-Blank, Maria de Fátima;Faquin, Valdemar;Pinto, José Eduardo B. P.;Blank, Arie F.;Lameira, Osmar A.;
Horticultura Brasileira , 1999, DOI: 10.1590/S0102-05361999000300007
Abstract: cordia verbenacea is popularly known as ‘erva-baleeira’ and is a perennial medicinal plant with anti-inflammatory properties. the aim of this work was to evaluate the effects of chemical fertilization and liming on growth and nutrition of c. verbenacea, using the missing element technique. the experiment was conducted in greenhouse using 40 day old seedlings, which were cultivated into 5 dm3 pots. the treatments were: complete (fertilization with n, p, k, s, b, cu, fe, zn and liming); complete without liming; complete missing each nutrient (n, p, k, s, b, cu, fe, zn) and control (natural soil). evaluation was done 120 days after transplanting. liming and fertilization are essential for c. verbenacea growth, when cultivated in poor acid soils. for the soil employed in this experiment the nutrients n, k and b, as well as liming, gave best results for c. verbenacea growth and nutrition.
SEEDLING PRODUCTION OF Hymenaea courbaril L. IN DIFFERENT ENVIRONMENTS, RECIPIENTS AND SUBSTRATE COMPOSITIONS
José Luiz Sandes de Carvalho Filho,Maria de Fátima Arrigoni-Blank,Arie Fitzgerald Blank,Maria Salete Alves Rangel
CERNE , 2003,
Abstract: ABSTRACT: The aim of this work was to evaluate the effect of two environments, differentsubstrate mixtures and two recipient sizes on emergence and seedling development of Hymenaeacourbaril L. Two environments (full sun and environment protected with 50% black screen), foursubstrate mixtures [soil; soil + bovine manure (2:1); soil + sand (1:1) and soil + sand + bovinemanure (1:2:1)] and two recipient sizes (11x18cm and 15x20cm plastic bags) were tested.Emergency started 20 days after sowing and prolonged till 180 days. Seed emergency reached41% at full sun and 26% in environment protected with 50% black screen. The substrate mixturesoil + sand + bovine manure (1:2:1) can be used for Hymenaea courbaril seedling production in15x20cm plastic bags and full sun environment.
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.
Estabelecimento de alecrim-pimenta in vitro
Costa, Andréa S da;Arrigoni-Blank, Maria de Fátima;Blank, Arie F;Mendon?a, Aline B de;Amancio, Ver?nica F;Ledo, Ana da S;
Horticultura Brasileira , 2007, DOI: 10.1590/S0102-05362007000100013
Abstract: lippia sidoides cham. is a native shrub from the semi-arid region of northeast brazil. its essential oil has high commercial value, due to the major compounds thymol and carvacrol, which have strong antimicrobial and antiseptic properties. the effect of concentrations and immersion time in sodium hypochlorite, culture media, the use of antibiotic and antioxidants on in vitro establishment of l. sidoides were evaluated. the assays were conducted in a completely randomized design. we evaluated the concentrations 0.2; 0.4; 0.6 and 0.8% of sodium hypochlorite and 8; 12; 16 and 20 minutes of immersion, in a 4 x 4 factorial scheme; the concentrations 0; 50; 100; 150 and 200 mg l-1 of cefotaxime sodium; the medium cultures ms, b5 and wpm; and the effect of antioxidants (pvp: 0.5 and 2 g l-1; and activated charcoal: 3 and 12 g l-1). the concentration of 0.8% of sodium hypochlorite resulted in a significantly higher (p<0.01) number of leaves per shoot: 1.88. for the other characteristics we did not observe any significant effect of sodium hypochlorite concentrations: the contamination varied from 33.7 to 50.6%; the number of new shoots varied from 1.17 to 1.65, and the number of leaves per explant varied from 1.77 to 3.07. although we did not observe significant difference for immersion times, 12 and 16 minutes of immersion tend to result in minor contamination. increasing the immersion time from 16 to 20 minutes tends to induce a reduction of new shoots (form 1.52 to 1.22), number of leaves per explant (from 2.62 to 1.81) and number of leaves per shoot (from 1.70 to 1.24). the use of cefotaxime sodium reduced significatively the bacterial contamination (55.23% at the control treatment; 9.99% at the 200 mg l-1 concentration), increasing the survival of explants from 0 (control) to 37.32% (200 mg l-1). the medium cultures offered statistically identical results. all the evaluated antioxidants, even at the lowest concentrations, reduced the oxidation from 50% (control) to as l
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.
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