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Search Results: 1 - 10 of 45078 matches for " Bellé Rogério Antonio "
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Identifica??o de cultivares de trigo pelo teste de fenol
Menezes, Nilson Lemos de;Bellé, Rogério Antonio;
Ciência Rural , 1995, DOI: 10.1590/S0103-84781995000200025
Abstract: the phenol test is recommended for wheat cultivar identification and is based on the reaction of compounds present in the seeds pericarp. due to the constant reaction for each cultivar, the test may be used for a rapid and easy characterization of different reactions materiais. in this essay, the phenol reaction was determined in 42 brazilian wheat varieties aiming to facilitate its identification.
Estimating leaf appearance rate and phyllochron in safflower (Carthamus tinctorius L.)
Streck, Nereu Augusto;Bellé, Rogério Antonio;Rocha, Edileusa Kersting da;Schuh, Mariangela;
Ciência Rural , 2005, DOI: 10.1590/S0103-84782005000600036
Abstract: safflower may be an interesting option for the flower market, either as fresh or dried cut flower. estimating the leaf appearance rate and the phyllochron (the time interval between the appearance of successive leaves) is important for calculating the number of emerged leaves (nl) on the plant, which is an excellent measure of plant development. the objective of this study was to estimate the leaf appearance rate and the phyllochron in safflower (carthamus tinctorius l.). an experiment was conducted in santa maria, rs, brazil, inside an 8 x 15m plastic greenhouse. sowing was on 03 october 2003 and emergence was on 08 october 2003. the experimental design was a randomized complete block design with three replications. the main stem nl was measured twice a week from 24 october 2003 to 15 november 2003 in four plants per replication. daily growing degree days above a base temperature (5°c) and accumulated thermal time (tt) were calculated. the nl was linearly regressed against tt. the angular coefficient of the linear regression is the lar (leaves/ °c day) and the phyllochron (°c days/leaf) was estimated by the inverse of the angular coefficient of the linear regression. the lar was 0.0467 ± 0.0203 leaves/ °c day and the phyllochron was 25.5 ± 14.6°c days/leaf.
Estimating leaf appearance rate and phyllochron in safflower (Carthamus tinctorius L.)
Streck Nereu Augusto,Bellé Rogério Antonio,Rocha Edileusa Kersting da,Schuh Mariangela
Ciência Rural , 2005,
Abstract: Safflower may be an interesting option for the flower market, either as fresh or dried cut flower. Estimating the leaf appearance rate and the phyllochron (the time interval between the appearance of successive leaves) is important for calculating the number of emerged leaves (NL) on the plant, which is an excellent measure of plant development. The objective of this study was to estimate the leaf appearance rate and the phyllochron in safflower (Carthamus tinctorius L.). An experiment was conducted in Santa Maria, RS, Brazil, inside an 8 x 15m plastic greenhouse. Sowing was on 03 October 2003 and emergence was on 08 October 2003. The experimental design was a randomized complete block design with three replications. The main stem NL was measured twice a week from 24 October 2003 to 15 November 2003 in four plants per replication. Daily growing degree days above a base temperature (5degreesC) and accumulated thermal time (TT) were calculated. The NL was linearly regressed against TT. The angular coefficient of the linear regression is the LAR (leaves/ degreesC day) and the phyllochron (degreesC days/leaf) was estimated by the inverse of the angular coefficient of the linear regression. The LAR was 0.0467 ? 0.0203 leaves/ degreesC day and the phyllochron was 25.5 ? 14.6degreesC days/leaf.
Crescimento, dura??o do ciclo e produ??o de inflorescências de crisantemo multiflora sob diferentes números de despontes e tamanhos de vasos
Brum, Betania;Santos, Valdecir José dos;Rodrigues, Marcelo Antonio;Bellé, Rogério Ant?nio;Lopes, Sidinei José;
Ciência Rural , 2007, DOI: 10.1590/S0103-84782007000300013
Abstract: the objective of this research was to evaluate the vegetative and reproductive behavior as well as the length of growing stage of two chrysanthemum cultivars under protected environment and submitted to different number of prunings and pot sizes. the experiment was conducted from april 30 until december 12, 2003 in a greenhouse located at the university of santa maria, rs, brazil. three pot sizes were used: 11, 15 and 20. the variance analysis for plant height and stem diameter was conducted under a bifactorial scheme: number of prunings (1a up to 31a week), for each combination of cultivar and pot size. regarding the inflorescence production, they were considered as treatments the numbers of prunings for each pot size and chrysanthemum cultivar. the means were compared using the tukey test (a=5%). plant height, stem diameter and number of inflorescences increased as the number of prunings and pot size increased, however, stem diameter decreased on both cultivars. the cultivar veria dark was less responsive than cultivar papiro. in order to produce good quality plants, there is a necessity to increase the number of prunings as pot size increases. to cultivate would see them dark and papiro had presented good performance in the region of santa maria, rs, mainly with the use of four lappings of the tops of corn for the vases number 11 and five for the vases number 15 and 20, being the cycle of culture of 21 weeks in the vase number 11 and 25 weeks, in the vase number 15 and 20.
Análise comparativa entre duas bacias hidrográficas utilizando um protocolo de avalia o rápida da diversidade de habitats / Comparative analysis between two hydrographic basin using a rapid habitats diversity evaluation protocol
Rogério Antonio Krupek
Ambiência , 2010,
Abstract: Este trabalho teve por objetivo utilizar um protocolo de avalia o rápida da diversidade de habitats como ferramenta para comparar duas bacias de drenagem localizadas no município de Guarapuava, estado do Paraná: a bacia hidrográfica do rio Cascavel (25o23’03”S-51o28’12”W) e a bacia hidrográfica do rio das Pedras (25o13’10”S-51o28’40”W), que se encontram relativamente próximas e est o sob diferentes intensidades de influências antrópicas. Este protocolo tem como finalidade avaliar características da água e do entorno de ecossistemas aquáticos a partir da atribui o de pontua o a cada um dos parametros com base na observa o das condi es do habitat. As coletas de dados foram realizadas no período de 10 de junho a 30 de julho de 2007 em vinte pontos de amostragem estabelecidos em cada uma das bacias de drenagem estudadas. Comparativamente, a grande maioria dos parametros apresentou diferen as significativas entre os dois sistemas, sendo que os rios e riachos da bacia do rio das Pedras encontram-se nitidamente em melhores condi es que a bacia do rio Cascavel, onde seus ecossistemas aquáticos apresentam visíveis sinais de degrada o. O uso de avalia es rápidas como este protocolo é uma importante ferramenta no desenvolvimento de programas de monitoramento ecológico e na restaura o de ambientes lóticos. AbstractThe main object of the present work was to use a protocol of rapid habitat diversity evaluation as tool to compare two drainage basin located in the municipality of Guarapuava, mid-southern region of Paraná state: Cascavel river basin (25o23’03”S-51o28’12”W) and Pedras river basin (25o13’10”S-51o28’40”W), which meets relatively near and under different intensities of entropic influences. This protocol has the purpose of evaluating water and riparian characteristics of the aquatic ecosystems from the attribution of values to each parameter through observation of the habitat conditions. The samplings were carried out from 10 June to 30 July of 2007 in 20 established points of sampling in each drainage basin studied. Comparatively, the great majority of the parameters presented significant differences among two systems, considering that rivers and streams of Pedras river basin are, for sure, in better conditions that Cascavel river basin, where the aquatic ecosystems presented visible signals of degradation. The use of rapid evaluation, like this protocol, is an important tool in developing programs of ecological monitoring and lotics environments restoration.
Armazenamento refrigerado de três cultivares de hortênsia cultivadas em vaso
Sonego, Graciela;Bellé, Rogério Ant?nio;
Ciência Rural , 1996, DOI: 10.1590/S0103-84781996000300007
Abstract: the experiment was conducted at the department of fitotecnia, in the federal university of santa maria, rs, from august 1993 to january 1995. the purposes were to verify the effect of cold storage in the lenght of cultivation of hydrangea - hydrangea macrophylla (thunb.) ser, and to obtain informations on the development of the hydrangea culture, through the fenometric characterization of the cultivars available in the region. it was conducted in completely randomized design, with five replications. the experiment was a 6 x 3 bifactorial whose treatments were six cold storage periods (zero, two, three, four, five and six weeks) in a cold chamber in a temperature of 2°c and three hydrangea cultivars (cv. rustic, white and decorative). the results showed no influence of the 2°c storage and growth regulator for the cultivars rustic and decorative. in the white cultivar a delay of two months occured in the flowering. accordingly, the three cultivars have a good potential for potted production and are characterized through the differences for diameter of the inflorescence, flowering cycle and total cycle of culture.
Produtividade e qualidade de sementes de flores produzidas em Santa Maria
Bellé, Rogério Ant?nio;Spannenberg, Rudimar;
Ciência Rural , 1997, DOI: 10.1590/S0103-84781997000100010
Abstract: the objective of this experiment was to evaluate the potential and quality of flowers seeds. fifteen species were tested for santa maria (24°41's latitude and 53°48'w longitude). the majority of the species had high seed production despite of variability. considering the local conditions of seeds cleaning and processing the species dianthus, eschscholtzia, nigella and phlox produced seeds with high germination. the species anthirrinum, gelosia, gaillardia nicotinic, scabbiest and zinnia have potential to potential to produce seeds of high quality, specially, when seed cleaning and processing are improved.
Symmetric Groups and Quotient Complexity of Boolean Operations
Jason Bell,Janusz Brzozowski,Nelma Moreira,Rogério Reis
Computer Science , 2013,
Abstract: The quotient complexity of a regular language L is the number of left quotients of L, which is the same as the state complexity of L. Suppose that L and L' are binary regular languages with quotient complexities m and n, and that the transition semigroups of the minimal deterministic automata accepting L and L' are the symmetric groups S_m and S_n of degrees m and n, respectively. Denote by o any binary boolean operation that is not a constant and not a function of one argument only. For m,n >= 2 with (m,n) not in {(2,2),(3,4),(4,3),(4,4)} we prove that the quotient complexity of LoL' is mn if and only either (a) m is not equal to n or (b) m=n and the bases (ordered pairs of generators) of S_m and S_n are not conjugate. For (m,n)\in {(2,2),(3,4),(4,3),(4,4)} we give examples to show that this need not hold. In proving these results we generalize the notion of uniform minimality to direct products of automata. We also establish a non-trivial connection between complexity of boolean operations and group theory.
UM MODELO INFORMACIONAL PARA EMPRESAS MULTIPLANTA
Rogério Matos Dias,Luiz Antonio Joia
Revista de Administra??o FACES Journal , 2006,
Abstract: Este estudo objetiva conceber, testar e demonstrar a aplicabilidade de um modelo informacional que possibilite a gest o integrada das opera es da cadeia de suprimentos para firmas geograficamente dispersas também denominadas empresas multiplanta. Para tanto, foram aplicados os métodos de pesquisa de caso e pesquisa-a o em uma empresa representativa do setor mínero-metalúrgico em ambito mundial, a Rio Doce Manganês S.A., subsidiária da Cia. Vale do Rio Doce. A pesquisa pretende demonstrar que o modelo de sistema informacional proposto, por meio da automatiza o dos processos transacionais e gerenciais, é capaz de prover recursos de planejamento e controle nos níveis operacional, tático e estratégico, devido a sua capacidade de incrementar velocidade e qualidade nos processos de análise e decis o. Adicionalmente, pretende conduzir, após análise dos resultados e avalia o das contribui es a empresa estudada, a um modelo informacional adequado para gerir as opera es de outras empresas de minera o e metalurgia com características semelhantes.
Avalia o da reten o de água no solo sob diferentes usos em uma regi o de Floresta Ombrófila Mista da regi o centro-sul do Paraná / Evalution of water retention in soil under different uses in an area of Araucaria forest in the county of Cantagalo, central-southern region of Parana state
Rogério Antonio Krupek,Rafael Brandalero Fritz
Ambiência , 2011,
Abstract: O presente trabalho teve como objetivo avaliar processos de reten o de água no solo em diferentes ambientes com rela o à cobertura do solo. A área de estudos encontra-se em um remanescente florestal no município de Cantagalo, Paraná. As amostragens foram realizadas em duas micro-regi es, sendo uma em ambiente aberto e outra com vegeta o (sombreado). A precipita o e temperatura da superfície do solo foram tomadas diariamente durante o período de 1o de abril de 2008 a 30 de mar o de 2009. Para a mensura o da quantidade de água retida no solo, foram realizadas coletas mensais e a porcentagem de água foi tomada a partir da diferen a entre peso fresco e seco da por o de solo. Após eventos significativos de precipita o e, após dez dias, este mesmo evento, foram também registradas as porcentagens de água no solo para se avaliar a reten o e perda da água em cada ambiente. De modo geral, a quantidade de água retida no solo n o apresentou diferen a entre os ambientes, a n o ser dentro dos próprios ambientes entre a data de precipita o e dez dias após tal evento. Tais diferen as devem-se à evapora o da água em ambiente aberto e à sua infiltra o em local sombreado.AbstractThe present study had as general objective to evaluate the processes of water retention in the soil in different environments with relation to cover of soil. This work was work out in a forestry remnant in the city of Cantagalo, Parana. The samples were worked out in two micro-regions, being, one in an open environment and the other with vegetation (shaded). The precipitation and temperature of the soil were taken daily during the period from April 1, 2008 to March 30, 2009. In order to measure the amount of water retained in the soil, samples were collected monthly and the percentage of water was taken from the difference between fresh weight and dry weight of the portion of soil. After significant events of precipitation and ten days after this same event, the percentage of water in the soil was also reported to evaluate the retention and loss of water in each environment. In general, the amount of water retained in the soil did not show distinction between the environment, except of their own environments between the date of precipitation and ten days after such an event. These differences are due to water evaporation in open environment and infiltration in the same shady place.
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