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Search Results: 1 - 10 of 231684 matches for " Lígia Regina Lima;Aguiar "
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Express?o fenotípica de clones de seringueira na regi?o noroeste do estado de S?o Paulo
Gon?alves, Paulo de Souza;Aguiar, Adriano Tosoni da Eira;Gouvêa, Lígia Regina Lima;
Bragantia , 2006, DOI: 10.1590/S0006-87052006000300004
Abstract: the development of new clones with high production combined to other desirable secondary characters is fundamental for a sustainable and competitive rubber tree cultivation. the objective of this study was to evaluate, during a period of 13 years, the phenotypic expression of superior characters of 17 clones of rubber tree grown in the plateau region of s?o paulo state, brazil. the treatments were arranged in a randomized block design with three replicates and six plants per linear plot. the clone iac 40 exhibed the highest yield (2.316 kg ha-1 year-1) followed by iac 300 (1.921 kg), whereas the control clone rrim 600 had 1.493 kg ha-1 year-1 over six years of tapping. the percentage of plants able for opening ranged from 40% for iac 329 to 100% for iac 327. except for iac 56, iac 331 and ian 3156, with 7.21 mm, 7.18 mm and 6.40 mm respectively, all other clones had lower thick virgin bark at opening compared to the control clone rrim 600, which recorded 6.38 mm. except ian 3.156 all clones showed low incidence of panel dryness. the good performance of all clones, both from iac and amazone (ian, fx and ro) allow their recommendation for small scale cultivation, when they would be further tested in different environments of the s?o paulo state, aiming recommendations in large scale.
Temporal stability for unpredictable annual climatic variability for Hevea genotype selection
Gon?alves, Paulo de Souza;Moraes, Mário Luiz Teixeira de;Gouvêa, Lígia Regina Lima;Aguiar, Adriano Tosoni da Eira;Scallopi Júnior, Erivaldo José;
Brazilian Archives of Biology and Technology , 2008, DOI: 10.1590/S1516-89132008000100002
Abstract: the objective of this study was to assess genotype-year interaction and determine temporal stable genotypes across six years of rubber yield evaluation. stability analyses were performed by eberhart and russell method for rubber yield. twenty-five genotypes were analyzed in a randomized complete block design with three replications. the best genotype in one year was not same always in the other year. the genotype components were partitioned into linear (genotypes within year) and nonlinear (pooled deviations) components. significant mean square for linear components was predictable. this indicated that the performance of genotypes across the years for rubber yield could be predicted. among the analyzed genotypes the iac 40 also was considered highly productive and vigorous, with suitable adaptation.
Viabilidade econ?mica de diferentes sistemas de sangria em clones de seringueira
Silva, Juliano Quarteroli;Souza, Mario Ivo Tavares de;Gon?alves, Paulo de Souza;Aguiar, Adriano Tosoni da Eira;Gouvêa, Lígia Regina Lima;Pinotti, Raquel Nakazato;
Pesquisa Agropecuária Brasileira , 2007, DOI: 10.1590/S0100-204X2007000300007
Abstract: the objective of this work was to evaluate yield performance and economic aspects of three clones of rubber tree [hevea brasiliensis (willd. ex adr. de juss.) muell. arg.], in different tapping systems. the trial was placed under randomized blocks design with split-plot in time. the main treatments were pr 255, rrim 600 and gt 1 clones submitted to nine systems of tapping: ?s d/3 6d/7.11m/y.et 2,5% pa la 8/y; ?s d/3 6d/7.11m/y.et 5,0% pa la 8/y; ?s d/4 6d/7.11m/y.et 2,5% pa la 8/y; ?s d/4 6d/7.11m/y.et 5,0% pa la 8/y; ?s d/5 6d/7.11m/y.et 2,5% pa la 8/y; ?s d/5 6d/7.11m/y.et 5,0% pa la 8/y; ?s d/7 6d/7.11m/y.et 2,5% pa la 8/y ; ?s d/7 6d/7.11m/y.et 5,0% pa la 8/y and ?s d/2 6d/7.11m/y (check). the variables were: girth increment, dry rubber productivity and brown bast. the economic viability of the tapping systems was also evaluated. economical benefits in the ?s d/3.et 2,5% 8/y system for pr 255 and rrim 600 clones and in the ?s d/7.et 2,5% 8/y system for gt 1 clone were observed, compared with the check. highest and smaller incidence of brown bast were observed in the ?s d/3.et 5,0% 8/y and ?s d/7.et 5,0% 8/y systems, respectively.
Performance of new Hevea clones from IAC 400 series
Gon?alves, Paulo de Souza;Silva, Marcelo de Almeida;Aguiar, Adriano Tosoni da Eira;Martins, Maria Alice;Scaloppi Junior, Erivaldo José;Gouvêa, Lígia Regina Lima;
Scientia Agricola , 2007, DOI: 10.1590/S0103-90162007000300005
Abstract: the hevea breeding program of instituto agron?mico de campinas (iac) has completed clonal evaluation on the following series: iac 100, iac 200 and iac 300. the performance of 22 clones of hevea brasiliensis (willd. ex adr. de juss.) muell.-arg., evolved at iac, over a period of eleven years was evaluated in the western central part of the s?o paulo state, brazil. among these 22 new clones, six were intraspecific hybrid clones (iac 400, iac 404, iac 405, iac 406, iac 410, iac 412) and the remaining are primary those resulted from selected ortets within half-sib progenies. an old popular clone rrim 600, of malaysian origin, was used as the control. the trial was laid out in a randomized block design with three replications. yield performance over a period of four years, mean girth at the 11th year, girth increment before tapping and on tapping, thermal property of natural rubber produced, bark thickness, number of latex vessel rows in seven year virgin bark, percentage incidence of tapping panel dryness, wind damage and diseases like leaf and panel anthracnose have been observed. sixty one percent of the clones were superior in relation to the control for yield. the clone iac 400 recorded the highest yield (97.40 g tree-1 tap-1) over four years of tapping, followed by iac 411 (78.87 tree-1 tap-1), whereas the control clone rrim 600 recorded 50.86 g tree-1 tap-1. all selected clones were vigorous in growth. girth increment of these clones was average to above average. except for iac 423, other clones had thick virgin bark at opening ranging from 4.84 mm for iac 401 to 6.38 mm for iac 416. the natural rubbers from iac clones have shown good thermal stability up to 300oc and no differences in the thermal behavior among rubber from clones of the iac series and the clone rrim 600 were found in inert atmosphere.
Prediction of Hevea progeny performance in the presence of genotype-environment interaction
Gon?alves, Paulo de Souza;Moraes, Mário Luiz Teixeira de;Silva, Marcelo de Almeida;Gouvêa, Lígia Regina Lima;Aguiar, Adriano Tosoni da Eira;Costa, Reginaldo Brito da;
Brazilian Archives of Biology and Technology , 2009, DOI: 10.1590/S1516-89132009000100004
Abstract: twenty two open-pollinated hevea progenies from different parental clones of the asian origin were tested at five sites in the northwestern s?o paulo state brazil to investigate the progeny girth growth, rubber yield, bark thickness and plant height. except for the rubber yield, the analysis of variance indicated highly significant (p<0.01) genotype x environment interaction and heterogeneity of regressions among the progenies. however, the regression stability analysis identified only a few interacting progenies which had regression coefficients significantly different from the expected value of one. the linear regressions of the progeny mean performance at each test on an environmental index (mean of all the progenies in each test) showed the general stability and adaptability of most selected hevea progenies over the test environments. the few progenies which were responsive and high yielding on different test sites could be used to maximize the rubber cultivars productivity and to obtain the best use of the genetically improved stock under different environmental conditions.
Divergence and genetic variability among superior rubber tree genotypes
Gouvêa, Lígia Regina Lima;Chiorato, Alisson Fernando;Gon?alves, Paulo de Souza;
Pesquisa Agropecuária Brasileira , 2010, DOI: 10.1590/S0100-204X2010000200007
Abstract: the objective of this work was to estimate the genetic variability and divergence among 22 superior rubber tree (hevea sp.) genotypes of the iac 400 series. univariate and multivariate analyses were performed using eight quantitative traits (descriptors), including yield. in the univariate analyses, the estimated parameters were: genetic and environmental variances; genetic and environmental coefficients of variation; and the variation index. the mahalanobis generalized distance, the tocher agglomerative method and canonical variables were used for the multivariate analyses. in the univariate analyses, variability was verified among the genotypes for all the variables evaluated. the tocher method grouped the genotypes into 11 clusters of dissimilarity. the first four canonical variables explained 87.93% of the cumulative variation. the highest genetic variability was found in rubber yield-related traits, which contributed the most to the genetic divergence. the most divergent pairs of genotypes are suggested for crossbreeding. the genotypes evaluated are suitable for breeding and may be used to continue the iac rubber tree breeding program.
Representa??es sociais da depress?o em jovens universitários com e sem sintomas para desenvolver a depress?o
Fonseca, Aline Arruda da;Coutinho, Maria da Penha de Lima;Azevedo, Regina Lígia Wanderlei de;
Psicologia: Reflex?o e Crítica , 2008, DOI: 10.1590/S0102-79722008000300018
Abstract: the objective of this research was to understand the social representations of depression in the students of the psychology course from a university in the city of jo?o pessoa, pb. a number of 56 university students participated of the research, from both genders, aged between 18 and 26 years old. as instruments, the beck depression inventory for the screening of the sample and the test of free association of words were used. data were processed by tri-deux-mots software (version 2.2) and were analyzed through the factorial analysis of correspondence. the results obtained showed that the students objectified their representations of depression in the melancholy and disillusion, in a bond of support and necessity of care. lack of affection was also pointed as a depressive fact, and the factors associated to the perception of themselves are elaborated with the social reality of the context in which they live, showing that the semantic associations brought by the university students are a result of the problems that surround their position in the society, as well as the information they gave about the illness.
Mortalidade infantil e contexto socioecon?mico no Ceará, Brasil, no período de 1991 a 2001
Bezerra-Filho, José Gomes;Kerr-Pontes, Lígia Regina Sansigolo;Barreto, Maurício Lima;
Revista Brasileira de Saúde Materno Infantil , 2007, DOI: 10.1590/S1519-38292007000200003
Abstract: the infant mortality rate (imr) has been determined as one of the most important health indicators by the alma-ata conference of the world health organization that also recognized primary health care as the key for health promotion. the united nations international childhood fund and the pan-american health organization devised low cost strategies for poor countries to reduce infant mortality rates such as growth monitoring, oral rehydration, breastfeeding, and vaccination. the assumption that substantial imr reduction is related to quality of life improvement has been questioned due to specific interventions of the health sector. in this scenario ceará and a large part of the northeast has historically coped with adversities in the social, economic and demographic areas including health care, thus establishing a causal relation among these sectors especially concerning infant mortality. macroepidemiological determinants for infant survival would be out of the health sector capacity of intervening therefore, only significant change of economic standards or social policies intensification, assuring continuity of education issues, of sanitation and generation of employment and income could have an impact on the population health and consequently on infant mortality. such hypothesis justifies a more in-depth investigation under a methodological viewpoint.
Social representations of the depression in young university students with and without symptoms to develop the depression / Representa es sociais da depress o em jovens universitários com e sem sintomas para desenvolver a depress o
Aline Arruda da Fonseca,Maria da Penha de Lima Coutinho,Regina Lígia Wanderlei de Azevedo
Psicologia: Reflex?o e Crítica , 2008,
Abstract: The objective of this research was to understand the social representations of depression in the students of the Psychology Course from a university in the city of Jo o Pessoa, PB. A number of 56 university students participated of the research, from both genders, aged between 18 and 26 years old. As instruments, the Beck Depression Inventory for the screening of the sample and the Test of Free Association of Words were used. Data were processed by Tri-Deux-Mots software (version 2.2) and were analyzed through the Factorial Analysis of Correspondence. The results obtained showed that the students objectified their representations of depression in the melancholy and disillusion, in a bond of support and necessity of care. Lack of affection was also pointed as a depressive fact, and the factors associated to the perception of themselves are elaborated with the social reality of the context in which they live, showing that the semantic associations brought by the university students are a result of the problems that surround their position in the society, as well as the information they gave about the illness.
Distribui??o espacial da taxa de mortalidade infantil e principais determinantes no Ceará, Brasil, no período 2000-2002
Bezerra Filho, José Gomes;Kerr, Lígia Regina Franco Sansigolo;Miná, Daniel de Lima;Barreto, Maurício Lima;
Cadernos de Saúde Pública , 2007, DOI: 10.1590/S0102-311X2007000500019
Abstract: the geographic distribution of health problems and its relationship to potential risk factors has opened a vast field for epidemiological research. the present study aims to identify spatial distribution patterns for the neonatal and post-neonatal components of the infant mortality rate (imr) in ceará state, brazil, and discuss the main socioeconomic, demographic, and healthcare factors contributing to the spatial dependence of these components. this cross-sectional ecological study uses multiple linear regression, in which spatial analysis of the components was obtained through the moran index. prenatal, childbirth, and neonatal care as well as improved income distribution are decisive for survival in the first month of life, while other factors related to nutrition, immunization, sanitation, education, and economic status are possible determinants of post-neonatal mortality. selective healthcare measures are known to play a decisive role in decreasing the imr. however, structural and inter-sector changes generate the sustainability needed to maintain this indicator on the same level as in developed countries.
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