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Search Results: 1 - 10 of 210826 matches for " Damiana F da;Silva "
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Produ??o do maxixeiro em fun??o de espa?amentos entre fileiras e entre plantas
Oliveira, Ademar P de;Silva, Jandiê A da;Oliveira, Arnaldo Nonato P de;Silva, Damiana F da;Santos, Rodolfo R;Silva, Natália V da;
Horticultura Brasileira , 2010, DOI: 10.1590/S0102-05362010000300017
Abstract: the yield of the gherkin cv. nordestino was evaluated with different spacings between rows and plants in a row in an essay which was carried out at the universidade federal da paraíba, brazil, from august/2007 to january/2008. the randomized block experimental design was used and the treatments were arranged in the factorial scheme 3 x 4 - three spacings between rows (1.0; 2.0; and 3.0 m) and four spacings between plants (0.5; 1.00; 1.5; and 2.0 m) - with four replicates. the experimental plot comprised four rows with ten plants in each one, totaling 40 plants, with one plant per hole. two central rows were considered as the useful area. the evaluated variables were the average mass of commercial fruits, the number and production of the commercial fruits plant-1 and the commercial productivity of fruits. setting 0.5 m between plants, all the characteristics under evaluation decreased as consequence of increasing spacings between rows. the highest values for average fruit mass (38 g), number of fruits (67 and 78) and productivity of fruits plant-1 (36 and 34 kg) were obtained at spacings of 2.0 and 3.0 m between rows and 1.0 m between plants, respectively. the highest productivities of commercial fruits (16 and 12.9 t ha-1) were obtained with 1.0 and 1.5 m between plants and 2.0 and 1.0 m between rows. on the other hand, the highest spacing between plants (2.0 m) reduced fruit productivity.
Parcelamento e fontes de nitrogênio para produ??o de maxixe
Oliveira, Ademar P de;Oliveira, Flávio José V de;Silva, Jandiê A da;Oliveira, Arnaldo Nonato P de;Santos, Rodolfo R;Silva, Damiana F da;
Horticultura Brasileira , 2010, DOI: 10.1590/S0102-05362010000200014
Abstract: the nitrogen sources and parceling were evaluated concerning to gherkin plant, nordestino cv., in the universidade federal da paraíba, brazil. the experimental design was the randomized block design in the factorial scheme 2 x 7, constituted of two nitrogen sources (urea and ammonium sulfate) and seven application times: a) (100% at sowing date; b) 100% 30 days after sowing (das); c) 100% 60 das; d) 50% at sowing date and 50% at 30 das; e) 50% at sowing date and 50% at 60 das; f) 50% at 30 and 50% at 60 dap; g) 33% at sowing date, 33% at 30 33% at 60 dap, with four replicates. the average weight of the fruits was inferior, 27 and 21 g, respectively, when the ammonium sulfate was 100% supplied at sowing and 100% at 60 das, as no alteration occurring in the urea source nor between those n sources. the yield of fruits of one plant (2.364 kg plant-1), the number of fruits of one plant (64 fruits plant-1) and fruit productivity (20.93 t ha-1) were significantly higher, when the nitrogen (ammonium sulfate source) was 50% parceled at 30 and 50% at 60 das. when urea was the nitrogen source, the yield of fruits of one plant (1.437 kg plant-1), the number of fruits of one plant (48 fruits plant-1) and the fruit productivity (12.66 t ha-1) were significantly higher, when it was parceled 50% at sowing date and 50% at 30 dae.
Yield of gherkin in response to doses of bovine manure
Oliveira, Arnaldo Nonato P de;Oliveira, Ademar P de;Leonardo, Francisco de Assis P;Cruz, Iordam da S;Silva, Damiana F da;
Horticultura Brasileira , 2009, DOI: 10.1590/S0102-05362009000100020
Abstract: considering the importance of gherkin in northeastern brazil, studies focusing on increasing its quality and yield are powerful tools to improve people social and economical condition in this region. the effects of doses of bovine manure were evaluated in gherkin yield in an experiment using cultivar nordestino, from may to september 2006, at the federal university of paraíba, in areia county, paraíba state, brazil. the experimental design was randomized complete blocks, with five treatments (0; 10; 20; 30, and 40 t ha-1) of bovine manure, in four replications. the working area in each experimental plot corresponded to 80 m2, including 20 plants, with 2.0 x 2.0 m spaces. the highest number of fruits per plant (30) was achieved with 32.2 t ha-1 of bovine manure. both fruit production per plant and fruit yield increased with doses of bovine manure, with maximum values of respectively 1,306 g and 19.5 t ha-1, when 40 t ha-1 of bovine manure were used.
Rendimento de maxixe adubado com doses de nitrogênio
Oliveira, Ademar P de;Oliveira, Arnaldo Nonato P de;Alves, Anarlete U;Alves, Edna U;Silva, Damiana F da;Santos, Rodolfo R;Leonardo, Francisco de Assis P;
Horticultura Brasileira , 2008, DOI: 10.1590/S0102-05362008000400022
Abstract: the effect of increasing nitrogen doses was evaluated on the gherkin yield, cv. nordestino. this study was carried out on the period from may to september 2006, at the universidade federal da paraíba, in areia, paraiba state, brazil, in an experimental design of randomized blocks with six treatments (0; 50; 100; 150, 200 and 250 kg ha-1 n) and four replications. twenty plants per plot were used, on a spacing of 2 x 1 m. fruit average mass, number and fruits production per plant, and yield of fruits were evaluated. fruits average mass reached the maximum value of 21 g using the dose of 155 kg ha-1 of n. the maximum number (21 fruits) and the maximum fruits production per plant of gherkins (469 g) were reached with 153 and 187 kg ha-1 of n, respectively. the dose of 188 kg ha-1 of n was responsible for the maximum yield of 12.7 t ha-1 of fruits. for the highest maximum economic efficiency the dose of 183 kg ha-1 of n was responsible for the yield of 12.7 t ha-1 of commercial fruits, meaning a development of 9.4 t ha-1 in the fruits productivity, relative to n absence.
Aduba??o fosfatada em inhame em duas épocas de colheita
Oliveira, Arnaldo Nonato P de;Oliveira, Francisco A;Sousa, Leossávio C de;Oliveira, Ademar P de;Silva, Jandiê A da;Silva, Damiana F da;Silva, Natália V da;Santos, Rodolfo R;
Horticultura Brasileira , 2011, DOI: 10.1590/S0102-05362011000400002
Abstract: the low content of phosphorus in tropical soils makes essential the research about fertilization in crops which are poorly studied such as yam. thus, this study aimed to evaluate the yam productivity (cultivar da costa) depending on phosphorus doses and harvest seasons. from february to december 2009, an experiment was carried out using the randomized blocks experimental design in subdivided plots, with four replications. in the plots six doses of phosphorus were evaluated (0, 100, 200, 300, 400 and 500 kg ha-1 of p2o5), and in the subplots two harvest seasons (seven and nine months after planting). the highest weight of tubers in seven and nine months was 1.94 and 2.20 kg with 245 and 240 kg ha-1 of p2o5, respectively. there was no significant effect of phosphorus doses on the total productivity in seven months and the average value was 13 t ha-1. the highest marketable productivity was 11.8 t ha-1 with 266 kg ha-1 of p2o5. in nine months, the highest total and marketable yield (24.7 and 20.5 t ha-1, respectively) was achieved with the application of 285 and 226 kg ha-1 of p2o5, respectively. the yield of tubers classified as first was 80 and 90% in seven and nine months, respectively, and was obtained with the application of 320 and 277 kg ha-1 of p2o5, respectively. the economic doses were 219 and 233 kg ha-1 of p2o5 to obtain 20.19 t ha-1 and 12.88 t ha-1 of marketable tubers in seven and nine months, representing increments of 19.17 and 3.9 t ha-1 in comparison to no application of phosphorus, respectively.
Tecnologia alternativa para produ??o de túberas-semente de inhame e seus reflexos na produtividade
Oliveira, Ademar P de;Silva, Damiana F da;Silva, Jandiê A da;Oliveira, Arnaldo Nonato P de;Santos, Rodolfo R;Silva, Natália V da;Oliveira, Francisca Joseanny M e;
Horticultura Brasileira , 2012, DOI: 10.1590/S0102-05362012000300033
Abstract: this study was carried out in two steps at ufpb, in areia, paraiba state, brazil, to evaluate the yam seed production by a high density planting system of tuber-seed portions and its effect on tuber yield. the experimental design in the two steps was randomized blocks with eight treatments and four replications. in the first step were produced yam tuber-seeds through planting of tuber-seed. initially, we produced tuber-seed portions by planting pieces of 25, 50, 75, 100, 125, 150, 175 and 200 g, spaced 20 x 20 cm. the seeds produced in the previous step, had average weight of 108, 133, 157, 181, 205, 229, 253 and 277 g, which were planted to evaluate the yam yield. we evaluated the average mass and the production of seed tubers and the total and commercial yield. the production and average weight of tuber-seeds increased linearly with increasing weight of the pieces of tuber-seeds planted, with maximum values of 277 and 4,170 g, respectively, obtained with a piece of 200 g of tuber-seeds. the total average yield was 13.6 t ha-1 depending on the weight of the planted seed-roots. the marketable yield of tubers was 10.8 t ha-1 obtained with tuber-seeds with an average weight of 181 g, which represents a savings of 34% in the amount of tuber-seeds necessary for the implementation of a hectare of yam.
Inventário de biomassa em um plantio de Pinus elliottii engelm. aos 23 anos de idade
Marcos Giongo,Damiana Beatriz da Silva,Henrique Soares Koehler,Marco Marchetti
Journal of Biotechnology and Biodiversity , 2011,
Abstract: Above ground dry biomass was estimated for a 23 years old Pinus elliottii stand, located at Rio Brancodo Sul, State of Paraná, Brazil. Stem, branches and needles dry biomass were estimated separately. Theestimated total above ground dry biomass was composed by 85 % of stem, 10 % of branches and 5 % ofneedles, respectively. The adjusted equation for estimation of total dry biomass as a function of thediameter at breast height (DBH), showed a coefficient of determination (R2) of 0.91 and a standard errorin percentage (Sxy%) of 11,98 %. Among the tested models for estimating the different portions of tree drybiomass as a function of DBH, the stem biomass equation was the one that showed the best results.
The ability of orthodontists and laypeople in the perception of gradual reduction of dentogingival exposure while smiling
Barros, Elaine Cristina da Silva;Carvalho, Marielly Damiana Oliveira de;Mello, Karina Corrêa Flexa Ribeiro;Botelho, Patrícia;Normando, David;
Dental Press Journal of Orthodontics , 2012, DOI: 10.1590/S2176-94512012000500012
Abstract: objective: to assess differences in how orthodontists and laypersons perceive a reduction in dentogingival display on smiling. methods: sixty examiners from both genders (30 laypersons and 30 orthodontists) evaluated photographs of spontaneous smiles of two subjects , one male and one female. based on the original images, smile height was modified by means of an image manipulation software program. the examiners assigned scores ranging from 0 to 10, according to the level of pleasantness. method reproducibility was examined using the wilcoxon test, while the friedman and wilcoxon tests (p < 0.05) were employed to observe intra- and interexaminer differences, respectively. results: no differences were found between the groups of examiners - in terms of esthetics - in response to changes in smile height of both genders . however,men smile had lower acceptability than the women smile. a mild reduction in dentogingival display on smiling (2 mm) was not perceived by either laypersons or orthodontists (p > 0.05). conclusions: women smiles achieved higher scores than men smiles however, samples involving a larger number of subjects in each group are required to ensure whether or not this finding is linked to the subjects gender.
Produ??o de mel?o Pele de Sapo híbrido 'Medellín' cultivado com diferentes salinidades da água
Medeiros, Damiana Cleuma de;Medeiros, José Francismar de;Dias, Pollyana Mona Soares;Barbosa, Murillo Anderson Gon?alves;Lima, Keivianne da Silva;
Revista Ciência Agron?mica , 2011, DOI: 10.1590/S1806-66902011000300008
Abstract: among the problems facing cultivation of the melon in the state of rio grande do norte, the salinity of the water and soil is a major limiting factor of both production and fruit quality. the objective of this work was to study the effects on the production of the hybrid pele-de-sapo melon medellin, of irrigation waters at different salinity levels. the experimental design was a completely randomized block with four replications, with treatments consisting of different salt-concentrations in the irrigation water (0.54; 1.48; 2.02; 3.03 and 3.9 ds m-1). the production features measured were: total yield and commercial yield; total number of marketable fruits per plant; total number of fruits; mean weight of the marketable fruits, and total mean weight of the fruits. the increase in water salinity negatively affected the crop yield, with relative losses per unit increase in salinity of above 0.54 ds m-1, 7.5%; 7.8%; 8.32% and 8.70% for commercial and total production, and the number of marketable fruits and total fruits, respectively.
Hábito alimentar, níveis de lipídios sangüíneos e o status antioxidante de adultos jovens fumantes e n?o fumantes
Batista, Ellencristina da Silva;Sabarense, Céphora Maria;Priore, Silvia Eloiza;Rosa, Damiana Diniz;Montezano, Izabela Maria;Peluzio, Maria do Carmo Gouveia;
Revista de Nutri??o , 2009, DOI: 10.1590/S1415-52732009000300008
Abstract: objective: the objective was to evaluate the food habits, blood lipid levels and antioxidant status of young adult smokers and non smokers. methods: this cross-sectional study divided 68 individuals aged 18 to 26 years, matched for age and sex, into two groups: smokers (n=34) and non-smokers (n=34). the individuals, selected from schools in vi?osa (mg), were asked about smoking status, consumption of alcoholic beverages and physical activity levels. nicotine dependence was also estimated. the food frequency questionnaire was used to assess food habits. serum levels of lipids, malondialdehyde, vitamin e and vitamin c were measured. results: the smokers started smoking early, regardless of sex. the smokers were further stratified into two groups: light smokers (58.8%) and heavy smokers (41.2%). smokers had inadequate food habits and consumed alcoholic beverages frequently. according to the international physical activity questionnaire, 69% of the smokers were active and 27.6% were very active. there was no significant difference between the serum lipid levels of smokers and non-smokers. in women, there was a positive correlation between the number of cigarettes smoked per day and serum triglyceride levels (r=0.824, p=0.0001) and number of years smoking and total cholesterol levels (r=0.523, p=0.031). smokers had lower vitamin e and c serum concentrations (p=0.002 and p<0.001, respectively) and the concentration of plasma malondialdehyde correlated with the number of years smoking (r=0.352 and p=0.041). conclusion: the group of smokers presented inadequate food habits, consuming alcoholic beverages frequently and high-fat foods. plasma malondialdehyde levels were positively correlated with the number of years smoking but not with the number of cigarettes smoked per day.
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