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| Registros recuperados: 14 | |
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| Cruz,Bruna P.; Chedier,Luciana M.; Fabri,Rodrigo L.; Pimenta,Daniel S.. |
| This study compares the development of Kalanchoe brasiliensis and Kalanchoe pinnata, which are medicinal species known as "saião" and "folha da fortuna" that are used interchangeably by the population for medicinal purposes. The experiment consisted of 20 plots/species planted in plastic bags with homogeneous substrate in a randomized design, which grown under light levels (25%, 50%, 70%, full sunlight) at environment temperature, and a treatment under a plastic with greater temperature range than the external environment. It was obtained for K. pinnata a greater plant height, total length of sprouts, stems, production and dry matter content of leaves than that obtained for K. brasiliensis, which achieved higher averages only for the length of lateral... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Kalanchoe; Luminosity; Mucilage; Flavonoids. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652011000400030 |
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| Lemos,Viviane de Oliveira Thomaz; Lucena,Eliseu Marlônio Pereira de; Bonilla,Oriel Herrera; Edson-Chaves,Bruno; Castro,Marina Arruda de; Sampaio,Valéria da Silva. |
| Abstract Eugenia luschnathiana (O.Berg) Klotzsch ex B.D.Jacks. (Myrtaceae) species, commonly known as pitomba-da-baía, occurs in Restinga region in the state of Ceara and has medicinal potential. The present study aimed to characterize the anatomy of E. luschnathiana leaves in the rainy and dry seasons, as well as in the sun and shade in the Restinga region of Ceara, aiming to generate useful information to understand the adaptive value of morphoanatomic responses to the natural conditions of occurrence of the species. Collections were performed at the State Botanical Park of Ceara, and leaves were completely expanded and fixed in FAA70, being replaced by 70% ethanol after 24 h. Samples were submitted to standard plant anatomy methodologies in order to... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Myrtaceae; Pitomba-da-baía; Anatomical plasticity; Seasonality; Luminosity. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452018000400201 |
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| Rego, Gizelda Maia; Possamai, Edilberto. |
| Toevaluate the effects of periods of shadeness over the initial growth and concentrations of chlorophyll in Cariniana legalis (Mart.) Kuntze seedlings, an experiment was installed in the research nursery of Embrapa Florestas, at Colombo/PR, Brazil. It was utilized randomized blocks design with five treatments and four replications. The treatments established were: 100% (entire light); 70%, 64%, 44% and 34% of sun radiation. Monitoring of height and diameter were made under intervals of 30 days, from 60o to 180o day after emergency (DAE). Air total dry matter weight of roots, leaf area, chlorophyll a, chlorophyll b and total chlorophyll were measured 180 days after emergency. FAR (Photosynthetic Active Radiation) of 63, 07% led to the best seedling growth... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Forest species; Seedling production; Luminosity; Solar radiation Espécie florestal; Plântulas; Mudas; Luminosidade; Radiação solar.. |
| Ano: 2011 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/210 |
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| Cruz,Bruna P.; Chedier,Luciana M.; Peixoto,Paulo H.P.; Fabri,Rodrigo L.; Pimenta,Daniel S.. |
| This paper compares two medicinal species of Kalanchoe, which are often used interchangeably by the population, regarding the distribution of anthocyanins under the influence of four luminosity levels for 6 months. For the morphoanatomical analysis, the 6th stem node of each plant was sectioned. Usual histochemical tests revealed the presence of anthocyanins by cross sections of the stems, petioles and leaf blades. The petioles and leaf blades were submitted to the extraction with acidified methanol, and the anthocyanins were quantified by spectrophotometric readings. At the macroscopic level, it was noticed for both species a higher presence of anthocyanins in stems and petioles of plants under full sunlight. The microscopy of K. brasiliensis stems... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anthocyanins; Kalanchoe; Luminosity; Vegetal anatomy. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652012000100022 |
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| DAPONT,ELEANDRO CANDIDO; SILVA,JOSUÉ BISPO DA; ALVES,CHARLINE ZARATIN. |
| ABSTRACT In order to evaluate the effect of different levels of shading on açai (Euterpe oleracea Mart.) plants development, an experiment was conducted at the nursery of Floresta, Rio Branco, AC. The experiment was arranged in a completely randomized design with six treatments and four replications of 25 plants, set as full sunlight and 18%, 35%, 50%, 70%, and 80% shading. The evaluation occurred 125 days after transplantation and the variables were stem diameter, root length, length of the aerial part, total length, dry matter of root, dry matter of aerial part, and total dry matter. With exception of root length, there was significant difference between treatments for all variables. The production of açai plants should be performed using 40% shading. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Euterpe oleracea; Plant propagation; Luminosity; Arecaceae. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452016000200602 |
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| Cruz,F.L.; Silva,A.A.; Machado,I.F.M.; Vieira,L.C.; Esteves,C.; Fassani,E.J.; Faria,P.B.. |
| ABSTRACT The purpose was to evaluate the effects of gender and of different genotypes of chickens on the physicochemical parameters and centesimal composition, related to the quality of meat. The design was completely randomized arranged in 5x2 factorial scheme, five genotypes (Índio Gigante - IG; New Hampshire - NHS; Gigante Negra de Jersey - GNJ; poultry from the crossing between the IG and NHS breeds - IG x NHS; and between the IG and GNJ breeds - IG x GNJ) and two genders, with five repetitions and each one represented by three poultry, totaling 150 animals, slaughtered at 105 days. The parameters evaluated on the breast and thigh were: centesimal composition (moisture, ether extract - EE, protein and ash), ultimate pH, color (L*- luminosity, a*-... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Shear force; Índio gigante; Luminosity; Protein; Color. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352018000100254 |
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| AZEVEDO,J.M.L.; SANTOS,C.G.G.; CAIRES,C.S.; ARAÚJO NETO,J.C.; SOUZA,R.C.. |
| ABSTRACT: The goal of this work was to characterize morphometrically diaspores from three species of mistletoes (Passovia pyrifolia, Struthanthus marginatus e Phoradendron mucronatum), as well as to study its germination behavior according to temperature and luminosity. In germination tests, the completely randomized design was used, in factor scheme 4 x 2, with 4 replications of 15 diaspores. The factors for the first test were different temperatures and two diaspore conditions (intact and without epicarp). In the second test, factors were different light qualities and two diaspore conditions. The analyzed variables were: germination percentage, germination rate index (GRI) and mean germination time (MGT). Mistletoe’s diaspores present an elliptic shape... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mistletoes; Temperature; Luminosity. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100218 |
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| Vercellino,R do A; Moura,DJ de; Nääs,I de A; Maia,AP de A; Medeiros,BBL; Salgado,DDA; Carvalho,TRM de. |
| Brazilian poultry production is prospering, and negative-pressure broiler houses are increasingly used to improve environmental control. One important issue is the color of the side curtains used in such houses due to the influence of colors on broiler behavior. This study aimed at evaluating the influence of different curtain color on the welfare of 7-day-old broilers, considering luminosity and other environmental parameters. Chicks were housed in three different negative-pressure broiler houses either with black (T1), blue (T2), or yellow (T3) side curtains. House environment (luminosity, dry-bulb temperature, air relative humidity, air velocity, and gas emissions) and the behavior of chicks on day 7 after housing were evaluated in three consecutive... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ammonia; Carbon dioxide; Luminosity; Behavior; Broiler chicks. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2013000300002 |
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| Pedreira,Marcelo Mattos; Costa,Deliane Cristina; Schorer,Marianne. |
| ABSTRACT: This research aimed to verify the influence of the photoperiod on the performance and survival piabanha-of-Pardo (Brycon vonoi) larvae. Piabanha-of-Pardo larvae 24 hours post-hatch, with body weight of 2.44 ± 0.02mg, and total length of 7.82 ± 0.46mm, were subjected to five different photoperiods: 0L:24D, 6L:18D, 12L:12D, 18L:6D and 24L:0D (871.12 ± 92.65 lux). Daily, the water temperature, dissolved oxygen (DO), percentage of oxygen saturation, pH, and water conductivity were monitored, and presented similar water quality values among tanks with distinct photoperiods, and within the range considered appropriate for the genus Brycon larvae. Piabanha-of-Pardo larvae have better productive performance and survival rate at longer photoperiods, over... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Brycon vonoi; Growth; Larviculture; Luminosity; Survival. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000100402 |
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| Souza,Rafaela R. de; Beckmann-Cavalcante,Márkilla Z.; Silva,Alcilane A.; Silva,Everaldo M. da; Brito,Leonardo P. da S.; Silva,Adriano O.. |
| ABSTRACT Light is one of the factors that most affect crop growth and yield. However, the control of light intensity is difficult, because, under certain environmental conditions, light energy may exceed or limit the capacity of plants to use it. In this sense, the productive behavior of plant species in shaded environments needs to be known. This study aimed to evaluate the effect of different shaded environments with black shade nets [0 (full sun), 35 and 50%, and overlap 35 + 50% shading nets] on flowering, yield and quality of inflorescences of Heliconia psittacorum (cv. 'Golden Torch'). The shaded environments caused a reduction in the number of days for inflorescence emergence and in the cycle of H. psittacorum (cv. 'Golden Torch'). The yield and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Flowering; Heliconiaceae; Luminosity. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016000200128 |
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| Registros recuperados: 14 | |
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