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| Registros recuperados: 129 | |
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| SILVA, C. C.; MANTELLO, C. C.; CAMPOS, T. de; SOUZA, L. M.; GONÇALVES, P. S.; SOUZA, A. P.. |
| Hevea brasiliensis is a native species of the Amazon Basin of South America and the primary source of natural rubber worldwide. Due to the occurrence of South American Leaf Blight disease in this area, rubber plantations have been extended to suboptimal regions. Rubber tree breeding is time-consuming and expensive, but molecular markers can serve as a tool for early valuation, thus reducing time and costs. In this work, we constructed six different cDNA libraries with the aim of developing gene-targeted molecular markers for the rubber tree. A total of 8,263 reads were assembled, generating 5,025 unigenes that were analyzed; 912 expressed sequence tags (ESTs) represented new transcripts, and two sequences were highly up-regulated by cold stress. These... |
| Tipo: Artigo de periódico |
Palavras-chave: Marcador SNP; Rubber tree; Marcador microssatélite; Biblioteca cDNA; CDNA library; Fitomejoramiento; Marcadores genéticos; Repeticiones de microsatélite.; Melhoramento genético vegetal; Seringueira; Hevea brasiliensis; Marcador genético; DNA; Caucho.; Plant breeding; Genetic markers; Microsatellite repeats.. |
| Ano: 2014 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/988256 |
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| Bernardo,Eduardo Roberto de Almeida; Santos,Jaime Maia dos; Silva,Ricardo Adaime da; Cassetari Neto,Daniel; Santos,Suzana Souza dos; Delmadi,Leila; Rocha,Vander de Freitas. |
| Este trabalho foi realizado com o objetivo de efetuar um levantamento da ocorrência de Meloidogyne exigua em seringueira em São José do Rio Claro, MT. Foram amostradas 191 propriedades agrícolas, totalizando cerca de 18.000ha. Os nematóides foram identificados no Laboratório de Nematologia do Departamento de Fitossanidade da FCAV/UNESP, em Jaboticabal, SP. Foram encontrados níveis populacionais de M. exigua entre 0 e 61.824 juvenis/5g de raízes. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Nematóide das galhas; Meloidogyne exigua; Hevea brasiliensis; Botryodiplodia theobromae. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782003000100025 |
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| CAVALCANTE, M. de J. B.; ANDRADE NETO, R. de C.; LEDO, A. da S.; GONDIM, T. M. de S.; CORDEIRO, Z. J. M.. |
| O trabalho teve como objetivo avaliar alternativas de manejo fitotécnico da bananeira comprida, cultivar D?Angola, visando ao controle da Sigatoka-negra. O experimento foi conduzido no campo experimental da Embrapa Acre no município de Rio Branco-AC com os tratamentos distribuídos em blocos ao acaso, completos, com seis repetições e constituídos por diferentes densidades de plantio, correspondendo: T1 - 3 m x 3 m (1.111 plantas/hectare); T2 - 3 m x 2 m (1.666 plantas/hectare); T3 - 2,5 m x 2 m (2.000 plantas/hectare); T4 - 4 m x 2 m x 1,5 m (1.333 plantas/hectare); T5 - 2 m x 2m (2.500 plantas/hectare) e; T6 - 3 m x 3 m (1.111 plantas/hectare), este último alocado sob o bosque de seringueira. Foram realizadas avaliações durante dois ciclos de produção. As... |
| Tipo: Artigo de periódico |
Palavras-chave: Bananeira comprida cv D'Angola; Rubber tree; Controle natural; Métodos de control.; Enfermedades y desórdenes de las plantas; Cultivo mixto; Bananos; Banana; Musa sp; Doença de planta; Fungo; Sigatoka negra; Mycosphaerella fijiensis; Consorciação de cultura; Seringueira; Hevea brasiliensis; Rendimento; Plátano.; Bananas; Plant diseases and disorders; Fungi; Black sigatoka; Control methods; Mixed cropping.. |
| Ano: 2014 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/999686 |
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| CASTRO, F. de A.. |
| As características climatológicas constituem fatores de grande importância na germinação, crescimento e desenvolvimento das plantas. Quando esses fatores nãos satisfazem as exigências de uma determinada espécie, esta não pode completar seu ciclo vital. A "Hevea brasiliensis" é uma espécie cujo ponto de compensação luminosa é mais alto que a intensidade de luz sob a manta fechada. A exigência de alta intensidade luminosa é comprovada pelo fato de apenas serem encontradas plântulas em clareiras naturais. A seringueira, nos estádios iniciais, deve suportar uma fase de forte supressão e, mesmo aquelas que ultrapassarem a esta fase, mas que ainda não são emergentes, devem ter o crescimento fortemente. restringido. O desbaste, portanto, para eliminação de sombra... |
| Tipo: Comunicado Técnico (INFOTECA-E) |
Palavras-chave: Ruber tree; Seringal Pirã de Rã; Guiomard Santos (AC); Alto Purus; Acre; Amazônia Ocidental.; Seringueira; Hevea brasiliensis; Manejo; Caucho; Silvicultura.; Silviculture.. |
| Ano: 1979 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/492286 |
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| Partelli,Fábio Luiz; Araújo,André Vasconcellos; Vieira,Henrique Duarte; Dias,Jairo Rafael Machado; Menezes,Luis Fernando Tavares de; Ramalho,José Cochicho. |
| The objective of this work was to evaluate the influence of intercropping 'Conilon' coffee (Coffea canephora) with rubber trees on coffee tree microclimate, nutrition, growth, and yield. Rubber trees were planted in two double rows 33 m apart, with 4x2.3 m spacing between plants. Treatments consisted of the distances from the coffee plants to the rubber trees: 3, 6, 9, 12, and 15 m. Measurements of atmospheric variables (temperature, irradiance, and relative humidity), leaf nutrient concentration, internode length of plagiotropic and orthotropic branches, individual leaf area, chlorophyll content, and yield were performed. Intercropping promotes changes in the microclimatic conditions of coffee plants close to rubber trees, with reduction of temperature... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coffea canéfora; Hevea brasiliensis; Irradiance; Monoculture; Shading. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2014001100872 |
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| DEUS, E. G.; SOUZA, M. S. M.; MINEIRO, J. L. C.; ADAIME, R.; SANTOS, R. S.. |
| The purpose of this study was to elaborate a preliminary list of the mite species associated with rubber trees in the municipality of Santana, in the state of Amapá, Brazil. Two collections of rubber tree leaves were conducted on May 2nd and June 5th , 2010. Twenty-five plants were sampled at random. Three leaves were collected per plant, from the lower third of the crown. The samples were placed in paper bags, packed in an isothermal box chilled gel-based pulp plant (Gelo-X®), and transported to the Entomology Laboratory at Embrapa Amapá, in Macapá. The leaflets were examined under a stereomicroscope, and the mites found on the adaxial and abaxial surfaces of the leaves were collected with a stilet, mounted on microscope slides in Hoyer?s medium, and... |
| Tipo: Artigo de periódico |
Palavras-chave: Rubber tree; Santana (AP); Amapá; Amazônia Oriental; Eastern Amazon; Plagas de plantas; Sondeo de la Población Actual.; Seringueira; Hevea brasiliensis; Praga de planta; Ácaro; Levantamento populacional; Caucho; Hevea.; Plant pests; Mites; Acari; Current population survey.. |
| Ano: 2012 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/945892 |
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| Lara,Fernando M.; Tanzini,Marcel R.. |
| To determine the resistance of rubber tree clones (Hevea brasiliensis) to Leptopharsa heveae Drake and Poor (Heteroptera: Tingidae) a trial was held in Itiquira, MT, in 1994/95 by comparing the following clones: AVROS 2037, Fx 4037, GT 1, HARBEL, IAC 207, IAN 4493, IAN 717, IAN 873, RO 38, and RO 46. Free choice and no choice trials involving preference for oviposition and feeding were carried out under field and laboratory conditions. The symptoms caused by the insects, number of excrements, number of eggs/female/leaflet, mortality rate, and number of insects/leaflet were scored. The results showed that clones Fx 4037, RO 38 and RO 46 were resistant by nonpreference for feeding and oviposition, whereas GT and IAN 873 were the most susceptible. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Insecta; Hemiptera; Hevea brasiliensis; Host plant resistance; Antixenosis. |
| Ano: 1997 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0301-80591997000300003 |
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| MENIN, M.; SANTOS, R. S.; BORGES, R. E.; PIATTI, L.. |
| Anurans are predators of a great diversity of invertebrates, but studies on agroecosystems are very scarce. Herein we described the diet composition of seven species of terrestrial anurans captured in three different agroecosystems (corn, soybean and rubber tree) and in forest remnants of the Northwestern region of São Paulo state, Brazil. Ten prey categories were identified in the stomachs of 80 specimens belonging to the families Bufonidae, Leptodactylidae and Microhylidae. Hymenoptera (Formicidae) was consumed by all species. Coleoptera was the most frequent item, consumed by six of the even species followed by Araneae and Isoptera. Isoptera was the most abundant item followed by Formicidae, Coleoptera and Araneae. Adults and juveniles of Physalaemus... |
| Tipo: Artigo de periódico |
Palavras-chave: Anuro terrestre; Terrestrial anurans; Rubber tree; Jaboticabal (SP); São Paulo; Cultura; Anfibios; Zea maiz; Agroescosistemas; Insectos sociales; Maiz; Nutrición animal; Semillas de soja.; Nutrição animal; Anfíbio; Dieta; Hábito alimentar; Inseto; Milho; Soja; Glycine max; Seringueira; Hevea brasiliensis; Caucho.; Animal nutrition; Amphibians; Social insects; Agroecosystems; Corn; Soybeans.. |
| Ano: 2015 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1021917 |
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| AZZINI,ANISIO; GONÇALVES,PAULO DE SOUZA; GONDIM-TOMAZ,ROSE MARRY ARAÚJO. |
| Determinou-se o diâmetro dos tubos crivados em 15 clones de seringueira [Hevea brasiliensis (Willd. ex Adr. de Juss.) Müell. Arg.], representando material de alta (IAN 873, IAC 41, RRIM 600, PR 107, IAN 717, IAC 54 e IAC 15) e de baixa (IAC 53, IAC 39, IAC 59, IAC 51, IAC 16, IAC 22, IAC 19 e IAC 9) produção de borracha. Os resultados mostraram que houve correlação significativa (R2 = 0,825) entre o diâmetro dos tubos crivados e a produção de borracha (y = 0,1961x2 - 14,77x + 281,7). |
| Tipo: Info:eu-repo/semantics/report |
Palavras-chave: Hevea brasiliensis; Tubos crivados; Produção de borracha. |
| Ano: 1998 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051998000100008 |
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| Mattos,Viviane M.; Feres,Reinaldo J. F.. |
| Eutetranychus banksi (McGregor, 1914) is a phytophagous, polyphagous and cosmopolitan species recorded on 23 plant families in 24 countries in North, Central and South Americas, Europe, Asia, and Africa. Specimens of E. banksi present morphological variability among individuals of the same population and also among populations from different host species, being commonly referred to as a polytypic species, despite the fact that studies based on meristic comparisons of these populations are lacking. Also, there is no data available in the literature on the biological life tables of E. banksi on different hosts. Specimens collected in Brazil, Guadeloupe, Martinique, Mexico, and Paraguay were investigated in order to recognize morphological patterns among... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Arrenothoky; Citrus sinensis; Hevea brasiliensis; Interbreeding; Multivariate morphometry. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702009000300007 |
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| Pethin,Denduang; Nakkanong,Korakot; Nualsri,Charassri. |
| Thailand is the world leader in the production of latex extracted from the rubber tree (Hevea brasiliensis). However, the most cultivated clone RRIM 600, is highly susceptible to diseases, and there is economic incentive to develop new rubber tree clones. Four rubber tree clones (T2, SK1, NK1 and SK3) that have high latex yield potential from plantations in Southern Thailand were selected for this study. Yield performance, latex biochemical parameters and anatomical characteristics of bark were monitored for two years, using RRIM 600 clones in the same fields as paired controls. The average yields of the clones SK1, NK1 and SK3 were 129.3, 74.2 and 53.9 g per tree per tapping, respectively, surpassing the paired RRIM 600 controls (94.3, 49.9 and 43.9 g per... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hevea brasiliensis; Random Amplified Polymorphic DNA; Latex yield; Latex biochemical parameters; Anatomical characteristics of bark. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162015000400306 |
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| Gonçalves,Paulo de Souza; Silva,Marcelo de Almeida; Aguiar,Adriano Tosoni da Eira; Martins,Maria Alice; Scaloppi Junior,Erivaldo José; Gouvêa,Lígia Regina Lima. |
| The Hevea breeding program of Instituto Agronômico 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 São 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... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hevea brasiliensis; Yield; Vigour; Brown bast; Bark thickness. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162007000300005 |
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| Maggiotto, Selma Regina; Universidade de Brasília; Oliveira, Dalziza de; Instituto Agronômico do Paraná; Marur, Celso Jamil; Instituto Agronômico do Paraná; Stivari, Sonia Maria Soares; Universidade Estadual de Maringá; Leclerc, Monique; University of Georgia; Wagner-Riddle, Claudia; University of Guelph. |
| Rubber tree plantations may improve the soil’s physical and chemical properties, and they may sequester atmospheric carbon in the biomass or the soil. However, the potential role of these plantations in sequestering carbon in the soil and plant biomass has not been fully evaluated. This study evaluated rubber tree plantations at Paranapoema, which is located in the northwestern region of the Paraná state of Brazil, to measure the biomass in plantations of different ages and to determine the organic carbon content and d13C in the soils. Biomass accumulation was evaluated using the destructive method in plantations of different ages. The total carbon stock in the top 60 cm of the soil was 63.4 Mg C ha-1 for the pasture adjacent to the plantations and 66.8... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 5.01.05.00-0 rubber tree; Hevea brasiliensis; Soil sigma13C; Isotopic ratio; Soil carbon stocks Agrometeorologia. |
| Ano: 2014 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/17404 |
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| Costa,Reginaldo Brito da; Resende,Marcos Deon Vilela de; Gonçalves,Paulo de Souza; Roa,Raul Alffonso Rodrigues; Feitosa,Kênia Cristine de Oliveira. |
| O trabalho objetivou estimar parâmetros e valores genéticos para os caracteres altura, diâmetro, produção de látex e produtividade de progênies de seringueira. As progênies meio-irmãos foram estabelecidas sob delineamento de blocos ao acaso, com 28 tratamentos (progênies), cinco repetições e dez plantas por parcela. Aos três anos de idade, as progênies foram avaliadas quanto aos caracteres: a) altura total (cm); b) diâmetro (mm); c) Produção de borracha seca (g) e produtividade (g cm-2). As estimativas dos coeficientes de herdabilidades individuais (0,33; 0,24 e 0,51) para os caracteres altura, diâmetro e produtividade, respectivamente, foram consideradas expressivas. Para o caráter produção de borracha seca, a estimativa do coeficiente de herdabilidade... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hevea brasiliensis; Parâmetros genéticos; Herdabilidade; Ganho genético. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052010000100007 |
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| Verardi,Cecília Khusala; Scaloppi Junior,Erivaldo José; Gonçalves,Paulo de Souza. |
| The objective of this work was to estimate the genetic parameters, genotypic and phenotypic correlations, and direct and indirect genetic gains among and within rubber tree (Hevea brasiliensis) progenies. The experiment was set up at the Municipality of Jaú, SP, Brazil. A randomized complete block design was used, with 22 treatments (progenies), 6 replicates, and 10 plants per plot at a spacing of 3x3 m. Three‑year‑old progenies were assessed for girth, rubber yield, and bark thickness by direct and indirect gains and genotypic correlations. The number of latex vessel rings showed the best correlations, correlating positively and significantly with girth and bark thickness. Selection gains among progenies were greater than within progeny for all the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hevea brasiliensis; Direct and indirect method; Early selection; Selection cycle. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2011000900015 |
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| Gonçalves,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. |
| Twenty two open-pollinated Hevea progenies from different parental clones of the Asian origin were tested at five sites in the Northwestern São 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... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hevea brasiliensis; Stability; Adaptability; Environmental index; Linear regression. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000100004 |
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| Feres,Reinaldo J. F.. |
| Calacarus heveae Feres, 1992 was the first eriophyid mite reported from Hevea brasiliensis Muell. Arg. This mite was first found in northwestern São Paulo State, Brazil. Feres (1998) described two additional species, Shevtchenkella petiolula and Phyllocoptruta seringueirae, from the same host and from same region. The commercial monocultural planting of the Amazonian rubber tree in the northwestern region of São Paulo State started about 18 years ago. In the Amazonian region, the native rubber tree grows dispersed between other plant species. Until now these eriophyids have been collected only on monocultural plantings. This paper reports the occurrence of C. heveae, S. petiolula and P. seringueirae on H. brasiliensis in the Amazonian Forest for the first... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Acari; Eriophyidae; Hevea brasiliensis; Rubber tree; Brasilian Amazonia. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752001000500030 |
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| Registros recuperados: 129 | |
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