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Search Results: 1 - 10 of 210432 matches for " Francisco Alberto de Lima; "
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Stability of soybean yield through different sowing periods
LIMA, WILMAR FERREIRA;TOLEDO, JOSé FRANCISCO FERRAZ DE;ARIAS, CARLOS ALBERTO ARRABAL;OLIVEIRA, MARCELO FERNANDES DE;
Pesquisa Agropecuária Brasileira , 2000, DOI: 10.1590/S0100-204X2000001100009
Abstract: soybean yield is highly affected by sowing period and there are significant productivity losses when sowings are done outward a relatively restricted period in many regions of brazil. breeding cultivars less sensitive to photoperiod and to temperature variations is desirable for adaptation to wider sowing period and wider latitude range and also make irrigated soybean cultivation possible during the fall-winter seasons in frost free regions. the possibility of selecting high yielding and stable lines for yield during various sowing periods was studied by analyzing the behavior of 100 non-selected advanced lines (f9 and f10), from each one of all possible biparental crosses involving the genotypes br85-29009, ocepar 8, ft-2, and br-13. experiments were set up in a completely randomized design with single-plant hill plots and received supplementary irrigation. sowing was on sept 27, oct 20, nov 17, and dec 17 in 1993/94 and sept 20, oct 20, nov 17, and dec 14 in 1994/95 at londrina, pr, brazil. procedures of regression analysis and minimum variance among planting date means were efficient for selecting stable lines during the four sowing seasons. it was possible to select stable and high yielding genotypes through the four sowing periods in all the crosses. no specific cross was clearly better to produce a greater number of stable genotypes.
Stability of soybean yield through different sowing periods
LIMA WILMAR FERREIRA,TOLEDO JOSé FRANCISCO FERRAZ DE,ARIAS CARLOS ALBERTO ARRABAL,OLIVEIRA MARCELO FERNANDES DE
Pesquisa Agropecuária Brasileira , 2000,
Abstract: Soybean yield is highly affected by sowing period and there are significant productivity losses when sowings are done outward a relatively restricted period in many regions of Brazil. Breeding cultivars less sensitive to photoperiod and to temperature variations is desirable for adaptation to wider sowing period and wider latitude range and also make irrigated soybean cultivation possible during the fall-winter seasons in frost free regions. The possibility of selecting high yielding and stable lines for yield during various sowing periods was studied by analyzing the behavior of 100 non-selected advanced lines (F9 and F10), from each one of all possible biparental crosses involving the genotypes BR85-29009, OCEPAR 8, FT-2, and BR-13. Experiments were set up in a completely randomized design with single-plant hill plots and received supplementary irrigation. Sowing was on Sept 27, Oct 20, Nov 17, and Dec 17 in 1993/94 and Sept 20, Oct 20, Nov 17, and Dec 14 in 1994/95 at Londrina, PR, Brazil. Procedures of regression analysis and minimum variance among planting date means were efficient for selecting stable lines during the four sowing seasons. It was possible to select stable and high yielding genotypes through the four sowing periods in all the crosses. No specific cross was clearly better to produce a greater number of stable genotypes.
Efeito da substitui??o do milho pela farinha da apara de mandioca em ra??es para poedeiras comerciais
Cruz, Frank George Guimar?es;Pereira Filho, Manoel;Chaves, Francisco Alberto de Lima;
Revista Brasileira de Zootecnia , 2006, DOI: 10.1590/S1516-35982006000800015
Abstract: the economic and productive performances of the dietary corn replacement with cassava shavings flour were evaluated in 200 lohmann lsl laying hens with 46 weeks old, kept in 25 cages. the experiment was analyzed as a complete randomized design with five treatments and five replicates of eight birds per experimental unit. the treatments consisted of five levels (0, 25, 50, 75, and 100%) of corn replacement with cassava shavings flour. quadractic effect on daily feed intake, with averages of 100.68, 101.00, 100.72, 99.42, and 99.50 g, in the respective replacement levels, was observed. viability, egg production and feeding conversion (kg/dz and g/g) showed no significant differences. it was observed treatment effect (quadractic effect) on egg weight, albumen percentage, shell percentage, shell thickness and specific gravity. egg mass and yolk percentage were not affected by the treatments. the 50% level treatment provided the lowest shell percentage in spite of presenting the highest egg weight. the egg yolk colour was affected by the treaments and showed linear decrease (7.84, 7.52, 7.35, 5.32, and 5.12) as the corn replacement level increased. from an economical viewpoint, the 100% level treatment presented higher difference on the cost per kilogram of feed, egg-dozen, and egg-box in relation to the other treatments. it is possible to replace up to 100% of corn by with cassava shavings flours with no changes on egg yield and feeding conversion. however, the replacement will depend on the relative cost of corn and pigments to be used for correcting egg yolk pigmentation.
Influência do corticóide na cicatriza o da anastomose traqueal sob tens o em c es
Araújo Carlos Alberto Almeida de,Aguiar José Lamartine de Andrade,Lima Francisco Pignataro,Azevêdo ítalo Medeiros de
Acta Cirurgica Brasileira , 2003,
Abstract:
Doses crescentes de corretivo na forma??o de mudas de mogno (Swietenia macrophylla King)
Silva, André Rogério Matos da;Tucci, Carlos Alberto Franco;Lima, Hedinaldo Narciso;Figueiredo, Antenor Francisco de;
Acta Amazonica , 2007, DOI: 10.1590/S0044-59672007000200004
Abstract: seedling production is one of the more important phases on the cultivation of trees, with this phase being essential for their appropriate development. the study had the objective of evaluating the growth and the absorption of nutrients in mahogany (swietenia macrophylla king) seedling under the effect of corrective growing doses. the experiment was carried out from september 2002 to august 2003. the treatments were, 0; 0.5; 1.0; 2.0; 2.5; 3.0 and 5.0 t/ha, of a mixture of calcium carbonate and magnesium carbonate p.a., in the 4:1 proportion. the experimental design was randomized blocks with 5 repetitions, in a total of 35 parcels, each one with 3 plants. the substratum was fertilized with equivalents doses to 200-500-300 kg.ha-1 of n, p2o5 and k2o, respectively and 15 kg.ha-1 of micronutrients fte-br12. the growth characteristics evaluated were height, diameter of the stem, dry biomass of the aerial part, root and total, aerial part/root relation. it was determined the moisture contents of the aerial part, root and total and as a function of the last one it was estimated the contents. the averages were compared by the test of tukey using 5% of probability. the liming affected all the growth characteristics, except the height. the nutritional necessity followed a decreasing order of k>n>ca>mg>p>fe>mn>zn>cu. the dose of 0.5 t.ha-1 was more advantageous from the economic point of view and can be recommended to acid subsoil of low natural fertility to compose substratum.
Condi??o corporal e características de carca?a de vacas de descarte na regi?o de Lavras-MG
Lima, Ivalda de Albuquerque;Rezende, Carlos Alberto Pereira de;Paiva, Paulo César de Aguiar;Andrade, Ivo Francisco de;Muniz, Joel Augusto;
Ciência e Agrotecnologia , 2004, DOI: 10.1590/S1413-70542004000300021
Abstract: a number of research works have shown the inferiority of the carcass and of the meat of cows mainly of cull cows which are led to slaughter very old and/ or with an unsuitable finishing. this work was aimed to establish among the cows slaughtered in the town of lavras - mg the most frequent body condition during the period of march to july and to evaluate the relationship existing between body condition and carcass yield and the yield of some cuts of the rear. the survey was conducted in the slaughterhouse of the town of lavras - mg and divided into two phases, thus comprehended : phase 1 (1st to 31st of march 2001) determined that 53.41% of the total of animals slaughtered in the period were females and that the body condition scores (bcs) more frequent among them were 3, 4 and 5. in phase 2 (15th april to 15th july 2001) were utilized 140 females viz. 42 cows of bcs 3, 59 females of bcs 4 and 39 of bcs 5. in each sore the cows were ranked into three genetic groups: zebu- crossed, holstein- crossed and crossbred. in the slaughterhouse before slaughter the cows were weighted classified as to body condition and genetic group and photographed for further classification by other referees. the evaluated parameters were: hcy, kidney and pelvic fat weight lea, pft and weight of the cuts (striploin, whole rump and tenderloin). the body condition score (bcs) influenced the hcw, pft kidney and pelvic weight and the weight of the whole rump in the three genetic groups. for the lea and weight of the tenderloin only the effect of the bcs on the zebu-crossed cows was found, striploin weight was not affected by the bcs. the zebu-crossed cows presented a greater hcy and pft but the largest lea was observed among the holstein cows. the kidney and pelvic fat and the weights of the cuts (striploin, rump and tenderloin) did not range among the genetic groups. from the results obtained, one can conclude that the cows slaughtered in the period presented poor body condition and that this
Influência do corticóide na cicatriza??o da anastomose traqueal sob tens?o em c?es
Araújo, Carlos Alberto Almeida de;Aguiar, José Lamartine de Andrade;Lima, Francisco Pignataro;Azevêdo, ítalo Medeiros de;Medeiros, Aldo da Cunha;
Acta Cirurgica Brasileira , 2003, DOI: 10.1590/S0102-86502003000700007
Abstract: objective: the aim of this study is to analyze the incidence and intensity of stenosis in the anastomotic area, after tracheal resection and under tension anastomosis, with the use of methyl-prednisolone as a prophylactic agent of the tracheal stenosis. the wound healing with and without the use of corticoid was analyzed as well. methods: the experimental study was done in 20 mongrel dogs weighing 13± 5 kg randomly separated into two groups. in group a (n=10) corticoid was not used and in the group b (n=10) it was used methyl-prednisolone im 10mg/kg. under general anesthesia with orotracheal intubation, three tracheal rings were ressected from each animal. the force for approach the trachea extremities was 300 gf. the animals were killed with a letal dosis of anesthetic and kcl after 30 days, when the trachea was ressected in order to measure the internal diameter of the anastomosis using a digital pachymeter. the histological study of the anastomotic zone was done by the he and masson trichromic coloration and by a digital system to the quantitative analysis of the histologic data. results: in the group a (control) it was detected a greater stenosis index than in the b (corticosteroid) one and the difference was significant (p<0,01). the same group b revealed inflammatory reaction significantly less intense than the control (p<0,01). conclusion: the data allow to conclude that the use of methyl-prednisolone in dogs submmited to tracheal resection and under tension anastomosis, contributed to decrease the intensity and frequence of stenosis of the anastomosis and reduced the inflammatory reaction in the healing tissue.
Prevalência de excesso de peso e hipertens?o arterial, em popula??o urbana de baixa renda
Feij?o, Adelina Maria Melo;Gadelha, Francisco Vieira;Bezerra, Antonio Alberto;Oliveira, Antonio Maurício de;Silva, Maria do Socorro Sombra;Lima, José Wellington de Oliveira;
Arquivos Brasileiros de Cardiologia , 2005, DOI: 10.1590/S0066-782X2005000100007
Abstract: objective: to study the relation between body mass and blood pressure in a low-income urban population. methods: from july to december 1998, a cross-sectional study was carried out in a representative sample of a low-income urban community with individuals of both sexes, aged > 30 years and living in 67 (30%) blocks selected out of 224. blood pressure, weight, and height were measured, and completion of a questionnaire provided information on sex, age, familial income, educational level, and occupation. body mass index was obtained by dividing weight (kilogram) by height squared (square meter), and the following values were considered: bmi < 25, normal; 25 > bmi < 30, overweight; bmi > 30, obesity. in addition, excessive weight was defined as bmi > 25, and arterial hypertension was defined as systolic blood pressure > 140 mm hg and diastolic blood pressure > 90 mm hg. results: in 1078 dwellings, 1137 eligible individuals resided, and complete information was obtained from 1032 (91%) individuals. the prevalences of arterial hypertension and excessive weight were 22.58% and 51.26%, respectively. before adjustment, the or for arterial hypertension for overweight individuals was 1.85 (95% ci: 1.52-2.25) and, for obese individuals, 3.7 (95% ci: 3.04-4.50); after adjustment, the ors were 2.04 (95% ci: 1.65-2.54) and 4.08 (95% ci: 3.30-5.08), respectively. conclusion: a strong association between body mass and blood pressure exists, independently of sex, age, familial income, educational level, and occupation.
Predation rate of Spodoptera frugiperda (Lepidoptera: Noctuidae) larvae with and without defense by Podisus nigrispinus (Heteroptera: Pentatomidae)
Zanuncio, José Cola;Silva, Carlos Alberto Domingues da;Lima, Eraldo Rodrigues de;Pereira, Fabrício Fagundes;Ramalho, Francisco de Souza;Serr?o, José Eduardo;
Brazilian Archives of Biology and Technology , 2008, DOI: 10.1590/S1516-89132008000100015
Abstract: the effect of the defense of the prey spodoptera frugiperda (j.e. smith) (lepidoptera: noctuidae) on predation rates of podisus nigrispinus (dallas) (heteroptera: pentatomidae) females was studied. p. nigrispinus preyed 1.0, 1.4, 1.2, 3.8 and 3.0 and 0.4, 0.8, 1.6, 2.8 and 3.2 third instars of s. frugiperda larvae with and without defense, respectively, with the densities of one, two, four, six and eight larvae. the attack rate and the manipulation time were, respectively, 0.67 ± 0.39-h and 6.72 ± 2.88 h for p. nigrispinus females fed with larvae with defense and 2.51 ± 0.16-h and 0.51 ± 0.77 h for those without defense. the functional response of the predator p. nigrispinus varies with the defense and the density of the prey s. frugiperda, with larger consumption of prey without defense at higher densities.
Serapilheira e teores de nutrientes em argissolo sob diferentes manejos no norte do Piauí
Lima, Sandra Santana de;Leite, Luiz Fernando Carvalho;Aquino, Adriana Maria de;Oliveira, Francisco das Chagas;Castro, Antonio Alberto Jorge Farias;
Revista árvore , 2010, DOI: 10.1590/S0100-67622010000100009
Abstract: this work aimed to evaluate litter deposition and quantify contents of n, p, k, ca and mg in agroforest systems six (afs6) and ten (afs10) years after implantation, in three-year old ecological based systems (es3), slash-and-burn agriculture (sba) and native forest (nf), all located in esperantina, northern region of piauí, brazil. collections were carried out in the wet and dry seasons of 2007. the litter was separated into leaves and branches and weighted to estimate the deposition on the soil. the highest leaf depositions were found in nf (3.8 mg ha-1), in the dry season, whereas for branches, in the afs10 (2.2 mg ha-1), in the wet season. afs showed the highest nutrient contents in the litter fractions, and, among them the n concentration was higher than the others, in both seasons. the estimate transfer of nutrients by the litter followed the sequence n>ca>k>p>mg. the values for litter deposition and contents and input of nutrients in the afs systems show the contribution of the agroforest management to soil quality and the economic sustainability of the system.
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