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Análisis químico del extracto celular de peciolo en fresa mediante laboratorios portátiles. Colegio de Postgraduados
Janeiro Cid, Ricardo.
El objetivo de la presente investigación fue establecer métodos de diagnóstico rápidos y confiables para el análisis químico del extracto celular de pecíolo en fresa mediante el uso de equipos portátiles. Se realizaron tres ensayos a nivel de invernadero, laboratorio y campo. Primero, con la finalidad de estandarizar el muestreo del extracto celular de peciolo en fresa se realizó un experimento en invernadero donde se tomó en cuenta la concentración de nitratos en el extracto celular de pecíolo (ECP) y su relación con la temperatura, luminosidad y humedad de suelo. Estas variables fueron medidas con un ionómetro portátil marca Horiba®, un termómetro, luxómetro y medidor de humedad marca Vernier®, respectivamente. Los resultados indicaron que la...
Palavras-chave: Edafología; Maestría; Temperatura del ambiente; Luminosidad; Humedad de la hoja; Environmental temperature; Luminosity; Leaf wetness; Espectrofotometría; Potenciometría; ICP-AES; Spectrophotometry; Potentiometry.
Ano: 2014 URL: http://hdl.handle.net/10521/2315
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Chemical and agronomic development of Kalanchoe brasiliensis Camb. and Kalanchoe pinnata (Lamk.) Pers under light and temperature levels Anais da ABC (AABC)
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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Ecological anatomy of Eugenia luschnathiana (O.Berg) Klotzsch ex B.D.Jacks. (Myrtaceae) leaves in the Restinga region, state of Ceara Rev. Bras. Frutic.
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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Ecological anatomy of Eugenia punicifolia (Kunth) DC. (MYRTACEAE) in the restinga region,state of Ceará Rev. Bras. Frutic.
Lemos,Viviane de Oliveira Thomaz; Lucena,Eliseu Marlônio Pereira de; Bonilla,Oriel Herrera; Edson-Chaves,Bruno.
Abstract The species Eugenia punicifolia (Kunth) DC. (myrtle) occurs in the coastal region of the state of Ceará and has ecological and medicinal importance. This study aimed to characterize the leaf anatomy of myrtle (E. punicifolia) in the rainy and dry seasons, as well as in the sun and shade in the restinga region of the state of Ceará and to contribute to the understanding of the morphoanatomic variations in response to the natural conditions of the occurrence of this species. For this, collections of fully expanded leaves were performed at the Botanical Park of Ceará and fixed in FAA70, being replaced by 70% ethanol after 24 hours. The usual anatomical procedures were then performed in order to qualitatively and quantitatively analyze the leaf...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Coastal vegetation; Myrtle; Anatomical plasticity; Seasonality; Luminosity.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452019000600203
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Effect of Shadeness Over Chlorophyll Level and Initial Growth of Cariniana legalis PFB - Pesquisa Florestal Brasileira
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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Effects of light intensity on the distribution of anthocyanins in Kalanchoe brasiliensis Camb. and Kalanchoe pinnata (Lamk.) Pers Anais da ABC (AABC)
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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Fomesafen toxicity to bean plants as a function of the time of application and herbicide dose Agronomy
Cieslik, Lucas Fernando; Universidade Tecnológica Federal do Paraná; Vidal, Ribas Antônio; Universidade Federal do Rio Grande do Sul; Trezzi, Michelangelo Muzell; Universidade Tecnológica Federal do Paraná.
The objectives of the present study were to evaluate the impact of the time of fomesafen application and its dose on the tolerance of the common bean crop and to investigate the influence of environmental variables on herbicide selectivity. Two field experiments were conducted using the time of fomesafen application and its dose as factors. Crop injury from fomesafen reached 20% when evaluated one week after treatment (WAT). When sprayed at the warmest times of the day when irradiance levels were at their highest (11h00 and 16h00), fomesafen phytotoxicity was higher compared with other application times. Increased values of these two environmental variables, especially luminosity, was associated with high levels of fomesafen injury to the bean crop....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Agronomia; Produção vegetal; Fitotecnia environmental variables; Air temperature; Luminosity; Selectivity Herbicidologia; Plantas daninhas.
Ano: 2014 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/17630
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In vitro establishment of blackberry (Rubus sp.) cultivar 'Xavante' Ciência Rural
Pelizza,Tânia Regina; Silveira,Fabiane Nunes; Ribeiro,Roberta Sabatino; Machado,Bruno Dalazen; Rufatto,Leo; Kretzschmar,Aike Anneliese.
ABSTRACT: The objective of this study was to evaluate the in vitro establishment of 'Xavante' blackberry under different conditions of plant luminosity and concentrations of salts of MS medium. The maintenance of 'Xavante' blackberry plants in the absence of light, with the use of MS medium with salt concentrations of 75% and 100% reduce bacterial contamination and the percentage of explants oxidized and provide the highest percentage of surviving and established explants. The 50% salt dilution in MS medium is not recommended when plants are subjected to the absence of light due to the high percentage of oxidized explants and consequently lower survival and establishment.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Contamination; Luminosity; In vitro maintenance; Micropropagation; Oxidation..
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000901542
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INITIAL DEVELOPMENT OF AÇAÍ PLANTS UNDER SHADE GRADATION Rev. Bras. Frutic.
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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Meat quality of chicken of different crossings in alternative system Arq. Bras. Med. Vet. Zootec.
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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Morphometry and Germination of Passovia pyrifolia, Struthanthus marginatus and Phoradendron mucronatum Diaspores Planta Daninha
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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The influence of side-curtain color on broiler chick behavior Rev. Bras. Ciênc. Avic.
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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The influence of the photoperiod on productive performance and survival of piabanha-of-Pardo (Brycon vonoi ), hatchery Ciência Rural
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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Yield and quality of inflorescences of 'Golden Torch' heliconia in different shaded environments AGRIAMBI
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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