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Search Results: 1 - 10 of 110845 matches for " José Carlos;Ide "
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Acid phosphatase activity and leaf phosphorus content in soybean cultivars
Raposo, Roberto Wagner Cavalcanti;Muraoka, Takashi;Basso, Luiz Carlos;Lavres Jr., José;Franzini, Vinicius Ide;
Scientia Agricola , 2004, DOI: 10.1590/S0103-90162004000400014
Abstract: the phosphate fertilization represents the most costly fraction of soybean crop production. efficient soybean cultivars for p absorption and utilization in soils of medium available p are highly desirable and might contribute for increasing crop production potential. thirty two soybean [glycine max (l.) merr.] cultivars recommended for 'cerrado' and differing in growth cycle (early, semi-early, semi-late, and late) were grown in a dystrophic typic haplustox cerrado soil to evaluate the acid phosphatase activity, p content in the diagnostic leaf, and shoot biomass. there were differences among the soybean cultivars within all maturation groups in acid phosphatase activity and shoot biomass. the diagnostic-leaf p-content showed significant differences on semi-late and late maturation groups' cultivars. the acid phosphatase activity correlated positively with the plant shoot biomass from semi-early (r = 0.46) and late (r = 0.47) cultivars, and negatively (r = -0.40) with the p content in the diagnostic leaf of late maturation cultivars. the occurrence of soybean cultivars with high and low acid phosphatase activity within the same maturation groups indicates the existence of different mechanisms involving p mobilization in the soil and internal plant p remobilization.
Faunistic analysis of Carabidae and Staphylinidae (Coleoptera) in five agroecosystems in northeastern S?o Paulo state, Brazil
Cividanes, Francisco Jorge;Barbosa, José Carlos;Ide, Sérgio;Perioto, Nelson Wanderlei;Lara, Rogéria Inês Rosa;
Pesquisa Agropecuária Brasileira , 2009, DOI: 10.1590/S0100-204X2009000800023
Abstract: the objective of this study was to determined species composition and community structure of carabidae and staphylinidae in five areas of forest fragment and soybean/corn crops or orange orchard, from december 2004 to may 2007. beetles were captured in pitfall traps distributed along two parallel transects of 200 m in length, placed across crop land/forest boundary fragment, with 100 m each. the shannon-wiener diversity and evenness indexes and morisita similarity index were calculated. the carabids abaris basistriatus chaudoir, calosoma granulatum perty, megacephala brasiliensis kirby, odontochila nodicornis (dejean) and selenophorus seriatoporus putzeys. are dominant and are widely distributed in northeastern s?o paulo state, brazil. point-scale species diversity was greatest at the transition between forest fragment and cultivated area. the carabid and staphylinid communities of the forest fragment were more similar to the community of orange orchard than that of soybean/corn crops.
Efeitos da temperatura no ciclo de vida, exigências térmicas e estimativas do número de gera??es anuais de Aedes aegypti (Diptera, Culicidae)
Beserra, Eduardo B.;Fernandes, Carlos R. M.;Silva, Suêide A. de O.;Silva, Lilian A. da;Santos, José W. dos;
Iheringia. Série Zoologia , 2009, DOI: 10.1590/S0073-47212009000200004
Abstract: the present work aims at estimating, based on a biological study, the thermal exigencies to the development and the number of generations per year of aedes aegypti (linnaeus, 1762) (diptera, culicidae) in field. the life cycle of the a. aegypti populations has been studied at constant temperatures of 18, 22, 26, 28, 32 and 34 ± 2oc, and 12 hours photophase. the low threshold temperature of development (tb) and the thermal constant (k) have been determined. the number of generations per year in laboratory and field has also been estimated. the favourable temperature to the a. aegypti development its between 22oc and 32oc, and to the longevity and fecundity a. aegypti adult its between 22oc and 28oc. the egg to adult basal temperature, thermal constant and the number of generations in field were, in order, 11.33; 8.99 and 13.61 oc, 192.3; 213.2 and 116.5 graus-days, and 23; 24.6 and 30.3 generations to a. aegypti populations from boqueir?o (07o29'27''s, 36o08'09''w), campina grande (07o13'32''s, 35o54'15''w) and remígio (06o58'1''s, 35o47'29''w).
Avalia??o econ?mica das perdas de banana no mercado varejista: um estudo de caso
Silva, Cintia de Souza;Perosa, José Matheus Yalenti;Rua, Paulo Sérgio;Abreu, Carlos Luiz Milhomen de;Pantano, Silvio César;Vieira, Cássia Regina Yuriko Ide;Brizola, Rubem Marco de Oliveira;
Revista Brasileira de Fruticultura , 2003, DOI: 10.1590/S0100-29452003000200012
Abstract: the objective of this research was to determinate the physics and economic banana's loss and its possible reason, in several retail trades in the city of botucatu - sp. the equipments were drawn aleatory. the information were collected through questions applied to people to determine the annual loss of three different varieties of banana. the results showed that all loss was 39 ton., that represents 11,1% of all saled in retail trades, with 10,5% in supermarkets, 15% in grocery store/retail shops, and 10,6% in free markets. the retail trade showed an annual loss of r$ r$ 35.038,00, in values of may/2002. the excessive handling by the client, excess offering inadequate packing, and low quality of fruit were the most important cause of losses. it was possible to conclude that, the client's behavior should be better, the plastic packing utilization, and caution in the handling during all the post harvest process.
A Nonstationary Halley’s Iteration Method by Using Divided Differences Formula  [PDF]
Nasr Al Din Ide
Applied Mathematics (AM) , 2012, DOI: 10.4236/am.2012.32026
Abstract: This paper presents a new nonstationary iterative method for solving non linear algebraic equations that does not require the use of any derivative. The study uses only the Newton’s divided differences of first and second orders instead of the derivatives of (1).
Crime, Self-Protection and Business Growth in Cote d’Ivoire  [PDF]
Assi José Carlos Kimou
Modern Economy (ME) , 2015, DOI: 10.4236/me.2015.610106
Abstract: Cote d’Ivoire was considered as an island of stability and economic prosperity in a region of stagnation, and political turmoil. The situation was reversed in the early 2000, when a decade of instability led to a surge in crime and violence. Yet, very little was known about the economic consequences of crime at the firm level. This paper tested empirically the impact of crime on business activity in Cote d’Ivoire. Using a recent World Bank enterprise survey dataset and a Heckman two-step procedure we showed that crime and private provision of security negatively impacted firms’ profit and investment.
List of types of Erotylidae (Insecta, Coleoptera) of the Museu de Zoologia, Universidade de S?o Paulo, Brazil
Campaner, Carlos;Lopes, Peterson Lásaro;Santos, Guilherme Ide Marques dos;
Papéis Avulsos de Zoologia (S?o Paulo) , 2008, DOI: 10.1590/S0031-10492008002100001
Abstract: a list of 228 types of 79 species of erotylids (insecta, coleoptera, erotylidae - including the languriinae) of the collection of the museu de zoologia da universidade de s?o paulo and the data on their labels are presented.
Mancha fisiológica do mam?o: uma perspectiva de obten??o de material genético tolerante
Oliveira, Jurandi Gon?alves de;Pereira, Messias Gonzaga;Martelleto, Luiz Aurélio Peres;Ide, Carlos David;
Revista Brasileira de Fruticultura , 2005, DOI: 10.1590/S0100-29452005000300028
Abstract: the occurrence of the physiological disturbance known as "skin freckle on papaya" (mfm) has reduced the quality of papaya (c. papaya l.) cultivated in brazil. the acquisition of genetic material tolerant to mfm is a very good strategy to overcome or at least to decrease the negative effects of such disturbance. in this present work, 22 papaya genotypes were evaluated in relation to the mfm, in the northern region of rio de janeiro state. the fruits were collected from a field testing installed in an experimental station of pesagro-rio, in the municipality of macaé. the experiment consisted of a randomized complete block design with four replications, with eight individual plants per plot. the data were submitted to the analysis of variance and to the mean comparison test. firstly it was conducted a combined analysis involving the two ripening stages - green-mature and ? mature. as the genotype by ripening stage was significant, each individual ripening stage was analyzed. based on the anova, the genotypic determination index (h2) for the trait mfm was estimated, which demonstrated that the evaluation on the second stage (? mature) shows higher value (67.85%) than in the green-mature stage (28.95%). thus, in such stage there is a better differentiation among genotypes. based on such results, it may be stated that there is expressive genetic variability among the evaluated genotypes, for this trait. so, there is a positive perspective of obtaining better genotypes - hybrids and varieties - in terms of tolerance to mfm via breeding programs. considering the strategy of breeding procedures, associated to adjustment of cultural practices, it represents new possibilities of growing papaya without the limitations caused by the mfm.
Improving phosphorus availability from patos phosphate rock for Eucalyptus: a study with 32P radiotracer
Villanueva, Felipe Carlos Alvarez;Muraoka, Takashi;Trevizam, Anderson Ricardo;Franzini, Vinicius Ide;Rocha, Alexandre Prado;
Scientia Agricola , 2006, DOI: 10.1590/S0103-90162006000100010
Abstract: eucalyptus plantation in brazil is generally set on low fertility soils, therefore phosphorus (p) fertilization is mandatory and increases the cost of plantation operation. using species that more efficiently uptake phosphorus from less soluble sources is an interesting option. however, little is known about eucalyptus regarding its ability of using less soluble forms of phosphorus. the use of p by eucalyptus (e. urophylla, e. grandis, and e. urophylla ′ e. grandis) was studied in greenhouse using a loamy-textured, hipodystrophic typic haplustox from the cerrado region, and 32p isotopic method. the p sources tested were triple superphosphate (tsp), phosphate rock (pr) and the triple superphosphate mixed with pr (tsp+pr). the effectiveness of p sources in terms of increasing dry matter yield was tsp = (tsp + pr) > pr, and the p uptake followed the order (tsp + pr) > tsp > pr for both species plus the hybrid. the increase in p uptake from pr due to tsp influence was 217.3% for e. urophylla, 235.7% for e. grandis, and 28.7% for e. urophylla ′ e. grandis, indicating an enhancement effect of tsp on the effectiveness of pr. the hybrid e. urophylla ′ e. grandis was the most efficient genotype on p soil use and e. grandis most exigent in p fertilizer.
Use of testers for combining ability and selection of papapya hybrids
Carlos David Ide,Messias Gonzaga Pereira,Alexandre Pio Viana,Telma Nair Santana Pereira
Crop Breeding and Applied Biotechnology , 2009,
Abstract: Using methods for estimating combining ability with the use of testers, where one or more genotypes arecrossed with all the plant material to be investigated, is simpler and faster than a diallel. The objective was to make use oftesters to select hybrids with a level of yield capacity and fruit quality that justifies their selection. A test was performed with20 papaya hybrids from the crossing of 13 'Solo'with tester' Formosa '(JS-12), and seven 'Formosa' lines, crossed with tester'Solo' (SS 72/12) in Linhares, state of Espirito Santo, between August 2006 and July 2007. The specific combining ability wasdetermined for 14 traits of papaya by the difference between the overall mean and the mean of each hybrid crossed with thetesters. The genotypes with the best values of Specific Combining Ability (SCA) for yield traits and fruit quality were: JS-12 xSS 72/12; JS-12 x S o Mateus and SS72/12 x Sekati, particularly the latter.
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