87 results on '"Scaloppi Junior, Erivaldo José"'
Search Results
2. Evaluation of the physicochemical properties of natural rubber from Hevea brasiliensis clones
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Silva, Maycon Jhony, Claro, Pedro Ivo Cunha, da Silva, Joyci Camila, Scaloppi Júnior, Erivaldo José, de Souza Gonçalves, Paulo, Martins, Maria Alice, and Mattoso, Luiz Henrique Capparelli
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- 2021
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3. Genetic diversity analyses of rubber tree genotypes based on UPOV descriptors
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Sant’Anna, Isabela de Castro, Cruz, Cosme Damião, Gouvêa, Lígia Regina Lima, Scaloppi Junior, Erivaldo José, Freitas, Rogério Soares de, and Gonçalves, Paulo de Souza
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- 2021
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4. Manual de identificação de clones de Seringueira
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Gonçalves, Paulo de Souza, primary, Sant'Anna, Isabela de Castro, additional, Scaloppi Junior, Erivaldo José, additional, and Freitas, Rogério Soares de, additional
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- 2022
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5. Black Crust Complex: Influence of Temperature and Period of Wetness on the Development of Fungi in Hevea brasiliensis.
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Anjos, Louyne Varini Santos Dos, Antonio, Gabriel Leonardi, Fischer, Ivan Herman, Goncalves, Elaine Cristine Piffer, Scaloppi Junior, Erivaldo José, Furtado, Edson Luiz, de Oliveira, Thaís Lopes, Bello, Heloísa Noemi, and Firmino, Ana Carolina
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HEVEA ,SCANNING electron microscopes ,MICROSCOPES ,ULTRAVIOLET radiation ,CLADOSPORIUM - Abstract
The objective of this work was to evaluate the development of Davidiella sp. and its asexual form, Cladosporium sp., under different environmental conditions in the rubber tree (Hevea brasiliensis). Rubber tree leaves were inoculated with a spore suspension and kept in a humid chamber under different temperatures and wetness periods. The behavior of the fungi was evaluated using a scanning electron microscope (SEM) and an ultraviolet light microscope (UV). In the images obtained in SEM, four hours after inoculation of the fungus, it was possible to verify the germination and penetration of conidia at temperatures of 10 to 20 °C. The formation of conidiophores was verified from six hours after inoculation, indicating that it is in the reproductive period. In the sexual phase, in SEM, from four hours after inoculation, it was possible to verify the formation of small protuberances at temperatures between 10 and 20 °C. These black dots evolve into circular, protruding black spots, like the symptoms of black crust, with apparent spore formation on them. The data obtained from the UV analyses corroborate those from SEM, showing that the fungus has good development in its two phases between temperatures of 20 and 25 °C and that the period of wetness on the leaf can contribute to the initial development of the pathogen. [ABSTRACT FROM AUTHOR]
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- 2024
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6. Growth of tamarind seedlings in different levels of shadowing and substrate composition
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Souza Salles, Josiane, primary, Costa, Edilson, additional, Freitas de Lima, Alexandre Henrique, additional, Souza Salles, Jussara, additional, Ferreira da Silva Binotti, Flávio, additional, da Costa Vieira, Gustavo Haralampidou, additional, da Silva Guimarães Júnnyor, Wellingthon, additional, and Scaloppi Junior, Erivaldo José, additional
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- 2024
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7. Genetic diversity associated with natural rubber quality in elite genotypes of the rubber tree
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Sant’Anna, Isabela de Castro, Gouvêa, Ligia Regina Lima, Martins, Maria Alice, Scaloppi Junior, Erivaldo José, de Freitas, Rogério Soares, and Gonçalves, Paulo de Souza
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- 2021
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8. PRODUÇÃO DE LÁTEX EM SERINGUEIRA PROVENIENTE DE POPULAÇÕES NÃO COMERCIAIS
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Moraes, Marcela Aparecida De, primary, Furlani, Renata Capistrano Moreira, additional, Arantes, Flávio Cese, additional, Dourado, Cecília Luzia, additional, Silva, Alonso Ângelo da, additional, Cambuim, José, additional, Furlani Júnior, Enes, additional, Scaloppi Junior, Erivaldo José, additional, Gonçalves, Paulo de Souza, additional, and Moraes, Mario Luiz Teixeira de, additional
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- 2021
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9. APLICAÇÃO DE PÓ DE ROCHA EM SERINGUEIRA NA REGIÃO NOROESTE PAULISTA: EFEITO SOBRE OS TEORES DE NUTRIENTES FOLIARES
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BORGES, Wander Luis Barbosa, primary, SCALOPPI JUNIOR, Erivaldo José, additional, FREITAS, Rogério Soares de, additional, SPORCH, Helimar Balarone da Silva, additional, CRUZ, Luan Carlos Pianta da, additional, OLIVEIRA, Douglas Yuri Osaki de, additional, BORGES, João Francisco, additional, and SILVA, Laryssa de Castro, additional
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- 2023
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10. Association among stability measurements in rubber tree traits
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Gouvêa, Lígia Regina Lima, Silva, Guilherme Augusto Peres, Moraes, Mário Luís Teixeira de, Scaloppi-Junior, Erivaldo José, Freitas, Rogério Soares de, and Gonçalves, Paulo de Souza
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- 2016
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11. Eficiência nutricional de porta-enxertos de seringueira
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Vieira, Noemi Cristina de Souza, primary, Furlani Junior, Enes, additional, Nocchi, Raiana Crepaldi de Faria, additional, Paixão, Amanda Pereira, additional, Pereira, Magno, additional, Scaloppi Junior, Erivaldo José, additional, and Silva, Dayane Bortoloto da, additional
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- 2022
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12. A divide-and-conquer approach for genomic prediction in rubber tree using machine learning
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Hild Aono, Alexandre, Francisco, Felipe Roberto, Moura Souza, Livia, De Souza Gonçalves, Paulo, Scaloppi Junior, Erivaldo José, Le Guen, Vincent, Fritsche-Neto, Roberto, Gorjanc, Gregor, Gonçalves Quiles, Marcos, Pereira de Souza, Anete, Hild Aono, Alexandre, Francisco, Felipe Roberto, Moura Souza, Livia, De Souza Gonçalves, Paulo, Scaloppi Junior, Erivaldo José, Le Guen, Vincent, Fritsche-Neto, Roberto, Gorjanc, Gregor, Gonçalves Quiles, Marcos, and Pereira de Souza, Anete
- Abstract
Rubber tree (Hevea brasiliensis) is the main feedstock for commercial rubber; however, its long vegetative cycle has hindered the development of more productive varieties via breeding programs. With the availability of H. brasiliensis genomic data, several linkage maps with associated quantitative trait loci have been constructed and suggested as a tool for marker-assisted selection. Nonetheless, novel genomic strategies are still needed, and genomic selection (GS) may facilitate rubber tree breeding programs aimed at reducing the required cycles for performance assessment. Even though such a methodology has already been shown to be a promising tool for rubber tree breeding, increased model predictive capabilities and practical application are still needed. Here, we developed a novel machine learning-based approach for predicting rubber tree stem circumference based on molecular markers. Through a divide-and-conquer strategy, we propose a neural network prediction system with two stages: (1) subpopulation prediction and (2) phenotype estimation. This approach yielded higher accuracies than traditional statistical models in a single-environment scenario. By delivering large accuracy improvements, our methodology represents a powerful tool for use in Hevea GS strategies. Therefore, the incorporation of machine learning techniques into rubber tree GS represents an opportunity to build more robust models and optimize Hevea breeding programs.
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- 2022
13. Rubber tree early selection for yield stability in time and among locations
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Gouvêa, Lígia Regina Lima, Silva, Guilherme Augusto Peres, Verardi, Cecília Khusala, de Oliveira, André Luis Bombonato, Gonçalves, Elaine Cristine Piffer, Scaloppi-Junior, Erivaldo José, de Moraes, Mário Luiz Teixeira, and de Souza Gonçalves, Paulo
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- 2013
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14. Genetic parameters and correlation in early measurement cycles in rubber trees
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Silva, Guilherme Augusto Peres, Gouvêa, Lígia Regina Lima, Verardi, Cecília Khusala, de Resende, Marcos Deon Vilela, Scaloppi Junior, Erivaldo José, and Gonçalves, Paulo de Souza
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- 2013
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15. Pré-penetração e período de latência de Colletotrichum tamarilloi em clones de seringueira resistentes e suscetível sob diferentes condições ambientais
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Magalhaes, Izabela Ponso, primary, Gomes, Marcela Eloi, additional, Scaloppi Junior, Erivaldo José, additional, Fischer, Ivan Herman, additional, Furtado, Edson Luiz, additional, Moreira, Bruno Rafael de Almeida, additional, Prado, Evandro Pereira, additional, and Firmino, Ana Carolina, additional
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- 2021
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16. Unravelling rubber tree growth by integrating GWAS and biological network-based approaches
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Francisco, Felipe Roberto, Hild Aono, Alexandre, Da Silva, Carla Cristina, Gonçalves, Paulo S., Scaloppi Junior, Erivaldo José, Le Guen, Vincent, Fritsche-Neto, Roberto, Moura Souza, Livia, Pereira de Souza, Anete, Francisco, Felipe Roberto, Hild Aono, Alexandre, Da Silva, Carla Cristina, Gonçalves, Paulo S., Scaloppi Junior, Erivaldo José, Le Guen, Vincent, Fritsche-Neto, Roberto, Moura Souza, Livia, and Pereira de Souza, Anete
- Abstract
Hevea brasiliensis (rubber tree) is a large tree species of the Euphorbiaceae family with inestimable economic importance. Rubber tree breeding programs currently aim to improve growth and production, and the use of early genotype selection technologies can accelerate such processes, mainly with the incorporation of genomic tools, such as marker-assisted selection (MAS). However, few quantitative trait loci (QTLs) have been used successfully in MAS for complex characteristics. Recent research shows the efficiency of genome-wide association studies (GWAS) for locating QTL regions in different populations. In this way, the integration of GWAS, RNA-sequencing (RNA-Seq) methodologies, coexpression networks and enzyme networks can provide a better understanding of the molecular relationships involved in the definition of the phenotypes of interest, supplying research support for the development of appropriate genomic based strategies for breeding. In this context, this work presents the potential of using combined multiomics to decipher the mechanisms of genotype and phenotype associations involved in the growth of rubber trees. Using GWAS from a genotyping-by-sequencing (GBS) Hevea population, we were able to identify molecular markers in QTL regions with a main effect on rubber tree plant growth under constant water stress. The underlying genes were evaluated and incorporated into a gene coexpression network modelled with an assembled RNA-Seq-based transcriptome of the species, where novel gene relationships were estimated and evaluated through in silico methodologies, including an estimated enzymatic network. From all these analyses, we were able to estimate not only the main genes involved in defining the phenotype but also the interactions between a core of genes related to rubber tree growth at the transcriptional and translational levels. This work was the first to integrate multiomics analysis into the in-depth investigation of rubber tree plant growth, producing
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- 2021
17. Temporal stability of vigor in rubber tree genotypes in the pre- and post-tapping phases using different methods
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Gouvêa, Lígia Regina Lima, Silva, Guilherme Augusto Peres, Verardi, Cecília Khusala, Silva, Juliano Quarteroli, Scaloppi-Junior, Erivaldo José, and Gonçalves, Paulo de Souza
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- 2012
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18. Structural and Biochemical Aspects Related to Resistance and Susceptibility of Rubber Tree Clones to Anthracnose
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Magalhaes, Izabela Ponso, primary, Marques, João Paulo Rodrigues, additional, Gomes, Marcela Eloi, additional, Scaloppi Junior, Erivaldo José, additional, Fischer, Ivan Herman, additional, Furtado, Edson Luiz, additional, Pinheiro Henrique, Rodney Lucio, additional, Veréchia Rodrigues, Flavia Thomaz, additional, and Firmino, Ana Carolina, additional
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- 2021
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19. Clonal resistance of rubber tree to Colletotrichum spp.
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Antonio, Gabriel Leonardi, primary, Scaloppi Junior, Erivaldo José, additional, Fisher, Ivan Herman, additional, Furtado, Edson Luis, additional, and Firmino, Ana Carolina, additional
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- 2021
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20. Comparación morfofisiológica de portainjertos de caucho clonales cultivados en un vivero suspendido
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Vieira, Noemi Cristina de Souza, Furlani Junior, Enes, Scaloppi Junior, Erivaldo José, Nocchi, Raiana Crepaldi de Faria, Paixão, Amanda Pereira, and Silva, Dayane Bortoloto
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Sudoración (E) ,Taxa fotossintética líquida (A) ,Concentración interna de carbono (Ci) ,Condutância estomática (gs) ,Sweating (E) ,SPAD-502 Index ,Net photosynthetic rate (A) ,Internal carbon concentration (Ci) ,Tasa fotosintética neta (A) ,Transpiração (E) ,Concentração interna de carbono (Ci) ,Stomatal conductance (gs) ,Conductancia estomática (gs) ,Índice SPAD-502 - Abstract
The objective of the work was to characterize the morphophysiological parameters of rubber tree rootstocks from seeds of clones GT1, PB235 and IAN873, grown in a suspended nursery in the municipality of Ilha Solteira-SP. The experiment was carried out in an open-air nursery installed at the Faculty of Engineering - UNESP, Campus de Ilha Solteira - SP, from March / 2018 to January / 2019. The experimental design used was randomized blocks, in a 3 x 5 factorial scheme, with three rootstocks GT1, PB235 and IAN873 and five times of data collection 60, 120, 180, 240 and 300 days after transplantation (DAT ), with three repetitions of 10 seedlings per plot. The rootstocks showed significant variation in physiological and growth parameters over the experimental period. IAN873 stood out in the increase of stem diameter, Dickson's quality index and relative chlorophyll content, as indicated by the reading of the SPAD-502 index. The photosynthetic rate of IAN873 was low at the beginning of the evaluations (60 DAT), however, it increased linearly, being equal to the other clones at the end of 300 DAT. During the cultivation period (300 DAT), under suspended nursery conditions, the IAN873 genotype demonstrated greater aptitude for use as a rootstock. El objetivo del trabajo fue caracterizar los parámetros morfofisiológicos de los portainjertos de árboles de caucho de semillas de los clones GT1, PB235 e IAN873, cultivados en un vivero suspendido en el municipio de Ilha Solteira-SP. El experimento se desarrolló en una guardería al aire libre instalada en la Facultad de Ingeniería - UNESP, Campus de Ilha Solteira - SP, de marzo / 2018 a enero / 2019. El diseño experimental utilizado fue bloques al azar, en un esquema factorial 3 x 5, con tres portainjertos GT1, PB235 e IAN873 y cinco veces de recolección de datos 60, 120, 180, 240 y 300 días después del trasplante (DAT ), con tres repeticiones de 10 plántulas por parcela. Los portainjertos mostraron una variación significativa en los parámetros fisiológicos y de crecimiento durante el período experimental. IAN873 se destacó en el aumento del diámetro del tallo, el índice de calidad de Dickson y el contenido relativo de clorofila, como lo indica la lectura del índice SPAD-502. La tasa fotosintética de IAN873 fue baja al comienzo de las evaluaciones (60 DAT), sin embargo, aumentó linealmente, siendo igual a los otros clones al final de 300 DAT. Durante el período de cultivo (300 DAT), en condiciones de vivero suspendido, el genotipo IAN873 demostró una mayor aptitud para su uso como portainjerto. O objetivo do trabalho foi caracterizar os parâmetros morfofisiológicos de porta-enxertos de seringueira provenientes de sementes dos clones GT1, PB235 e IAN873, cultivados em viveiro suspenso no município de Ilha Solteira- SP. O experimento foi desenvolvido em viveiro a céu aberto instalado na Faculdade de Engenharia - UNESP, Câmpus de Ilha Solteira- SP, durante o período de março/2018 a janeiro/2019. O delineamento experimental utilizado foi o de blocos ao acaso, em esquema fatorial de 3 x 5, sendo três porta-enxertos GT1, PB235 e IAN873 e cinco épocas de coleta de dados 60, 120, 180, 240 e 300 dias após transplantio (DAT), com três repetições de 10 mudas por parcela. Os porta-enxertos apresentaram variação significativa dos parâmetros fisiológicos e de crescimento ao longo do período experimental. O IAN873 destacou-se no incremento de diâmetro de caule, índice de qualidade de Dickson e teor relativo de clorofila, conforme apontou a leitura do índice SPAD-502. A taxa fotossintética de IAN873 foi baixa no início das avaliações (60 DAT), entretanto, elevou-se linearmente, igualando-se aos demais clones ao final dos 300 DAT. Durante o período de cultivo (300 DAT), sob condições de viveiro suspenso, o genótipo IAN873 demonstrou maior aptidão para uso como porta-enxerto.
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- 2020
21. Comparação morfofisiológica de porta-enxertos clonais de seringueira cultivados em viveiro suspenso
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Vieira, Noemi Cristina de Souza, primary, Furlani Junior, Enes, additional, Scaloppi Junior, Erivaldo José, additional, Nocchi, Raiana Crepaldi de Faria, additional, Paixão, Amanda Pereira, additional, and Silva, Dayane Bortoloto, additional
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- 2020
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22. Quality of rubber tree rootstock seedlings grown in protected environments and alternative substrates
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Silva, Abimael Gomes da, primary, Costa, Edilson, additional, Pereira, Talita Cristina Campos, additional, Binotti, Flávio Ferreira da Silva, additional, Scaloppi Junior, Erivaldo José, additional, and Zoz, Tiago, additional
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- 2020
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23. Efeito da poda apical nos atributos morfofisiológicos do porta-enxerto clonal de seringueira GT 1
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Pereira, Amanda Casagrande, Scaloppi Junior, Erivaldo José, Costa, Edilson, Martins, Gustavo Luís Mamoré, and Souza, Noemi Cristina de
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Plant growth management ,Hevea brasiliensis ,Seedling production ,Viveiro suspenso ,Suspended nursery ,Produção de mudas ,Manejo de crescimento das plantas - Abstract
Resumo Os porta-enxertos de seringueira requerem um período em viveiro para atingir o estádio de enxertia, sendo necessária a aplicação de práticas para otimizar o tempo de formação das mudas. O objetivo do trabalho foi avaliar o efeito da poda apical nos atributos morfofisiológicos dos porta-enxertos de seringueira GT1. O experimento foi realizado no período de maio de 2014 a maio de 2015 e os tratamentos consistiram em T1: sem poda apical; T2: poda apical realizada uma vez após o terceiro lançamento foliar maduro; T3: poda apical realizada mensalmente após o terceiro lançamento foliar maduro; T4: poda apical realizada uma vez após o quarto lançamento foliar maduro; T5: poda apical realizada mensalmente após o quarto lançamento foliar maduro; T6: poda apical realizada uma vez após o quinto lançamento foliar maduro e T7: poda apical realizada mensalmente após o quinto lançamento foliar maduro. As mensurações foram realizadas mensalmente, medindo-se o diâmetro e a altura das plantas, de 90 até 360 DAT (dias após o transplantio). Aos 360 DAT foram avaliados: massa seca de raiz, caule, folhas e massa seca total; número de folíolos; comprimento da raiz pivotante; volume do sistema radicular; área foliar e teores de elementos minerais nas folhas. A poda apical influenciou no diâmetro do caule, da altura, da massa seca de caule, da massa seca foliar e da área foliar das plantas. Plantas submetidas às podas apicais apresentaram a massa seca de raiz, a massa seca total, o comprimento de raiz, o volume de raiz e o número de folíolos semelhantes às não despontadas. Os tratamentos com poda apical realizada mensalmente apresentaram maior concentração de elementos minerais nas folhas. A poda apical realizada mensalmente após o quarto lançamento foliar maduro possibilitou o desenvolvimento em diâmetro dos porta-enxertos de seringueira em período semelhante às plantas não despontadas, porém aliado a uma menor altura, que facilita os tratos culturais. Abstract The rubber tree rootstocks require a period in nursery to reach the grafting stage, and it is necessary the application of practices to optimize the time of seedling formations. The objective of this work was to evaluate the effect of apical pruning on the morphophysiological attributes of the GT1 rubber tree rootstocks. The experiment was performed from May 2014 to May 2015 and the treatments consisted in T1: without apical pruning; T2: apical pruning performed once after the third mature leaf release; T3: apical pruning performed monthly after the third mature leaf release; T4: apical pruning performed once after the fourth mature leaf release; T5: apical pruning performed monthly after the fourth mature leaf release; T6: apical pruning performed once after the fifth mature leaf release and T7: apical pruning performed monthly after the fifth mature leaf release. Measurements were performed monthly, measuring the diameter and height of the plants, from 90 to 360 DAT (days after planting transfer). At 360 DAT were evaluated: dry mass of root, stem, leaves and total dry mass; number of leaflets; length of the pivoting root; volume of the root system; leaf area and mineral element content in leaves. The apical pruning influenced stem diameter, height, dry stem mass, dry leaf mass and leaf area of plants. Plants submitted to apical pruning showed dry root mass, total dry mass, root length, root volume and number of leaflets similar to those not budded. The treatments with monthly apical pruning showed a higher concentration of mineral elements in the leaves. The apical pruning performed monthly after the fourth mature leaf release allowed the development in diameter of the rootstocks of the rubber tree in a period similar to the plants not blossomed, but ally to a smaller height, which facilitates the cultural treatments.
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- 2019
24. Genomic selection in rubber tree breeding: A comparison of models and methods for managing G×E interactions
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Souza, Livia Moura, Francisco, Felipe O., Gonçalves, Paulo De Souza, Scaloppi Junior, Erivaldo José, Le Guen, Vincent, Fritsche-Neto, Roberto, Souza, Anete Pereira, Souza, Livia Moura, Francisco, Felipe O., Gonçalves, Paulo De Souza, Scaloppi Junior, Erivaldo José, Le Guen, Vincent, Fritsche-Neto, Roberto, and Souza, Anete Pereira
- Abstract
Several genomic prediction models combining genotype × environment (G×E) interactions have recently been developed and used for genomic selection (GS) in plant breeding programs. G×E interactions reduce selection accuracy and limit genetic gains in plant breeding. Two data sets were used to compare the prediction abilities of multienvironment G×E genomic models and two kernel methods. Specifically, a linear kernel, or GB (genomic best linear unbiased predictor [GBLUP]), and a nonlinear kernel, or Gaussian kernel (GK), were used to compare the prediction accuracies (PAs) of four genomic prediction models: 1) a single-environment, main genotypic effect model (SM); 2) a multienvironment, main genotypic effect model (MM); 3) a multienvironment, single-variance G×E deviation model (MDs); and 4) a multienvironment, environment-specific variance G×E deviation model (MDe). We evaluated the utility of genomic selection (GS) for 435 individual rubber trees at two sites and genotyped the individuals via genotyping-by-sequencing (GBS) of single-nucleotide polymorphisms (SNPs). Prediction models were used to estimate stem circumference (SC) during the first 4 years of tree development in conjunction with a broad-sense heritability (H2) of 0.60. Applying the model (SM, MM, MDs, and MDe) and kernel method (GB and GK) combinations to the rubber tree data revealed that the multienvironment models were superior to the single-environment genomic models, regardless of the kernel (GB or GK) used, suggesting that introducing interactions between markers and environmental conditions increases the proportion of variance explained by the model and, more importantly, the PA. Compared with the classic breeding method (CBM), methods in which GS is incorporated resulted in a 5-fold increase in response to selection for SC with multienvironment GS (MM, MDe, or MDs). Furthermore, GS resulted in a more balanced selection response for SC and contributed to a reduction in selection time when used in
- Published
- 2019
25. Efeito da poda apical nos atributos morfofisiológicos do porta-enxerto clonal de seringueira GT1
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Pereira, Amanda Casagrande, primary, Scaloppi Junior, Erivaldo José, additional, Costa, Edilson, additional, Martins, Gustavo Luís Mamoré, additional, and Vieira, Noemi Cristina de Souza, additional
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- 2019
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26. Linkage disequilibrium and population structure in wild and cultivated populations of rubber tree (Hevea brasiliensis)
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de Souza, Lívia Moura, dos Santos, Luciano H. B., Rosa, João Ricardo Bachega Feijó, Da Silva, Carla Cristina, Mantello, Camilia Campos, Conson, Andre R.O., Scaloppi Junior, Erivaldo José, Fialho, Josefino de F., de Moraes, Mario Luiz T., Gonçalves, Paulo De Souza, Margarido, Gabriel R. A., Garcia, Antonio Augusto Franco, Le Guen, Vincent, de Souza, Anete Pereira, de Souza, Lívia Moura, dos Santos, Luciano H. B., Rosa, João Ricardo Bachega Feijó, Da Silva, Carla Cristina, Mantello, Camilia Campos, Conson, Andre R.O., Scaloppi Junior, Erivaldo José, Fialho, Josefino de F., de Moraes, Mario Luiz T., Gonçalves, Paulo De Souza, Margarido, Gabriel R. A., Garcia, Antonio Augusto Franco, Le Guen, Vincent, and de Souza, Anete Pereira
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Among rubber tree species, which belong to the Hevea genus of the Euphorbiaceae family, Hevea brasiliensis (Willd. ex Adr.de Juss.) Muell. Arg. is the main commercial source of natural rubber production worldwide. Knowledge of the population structure and linkage disequilibrium (LD) of this species is essential for the efficient organization and exploitation of genetic resources. Here, we obtained single-nucleotide polymorphisms (SNPs) using a genotyping-by-sequencing (GBS) approach and then employed the SNPs for the following objectives: (i) to identify the positions of SNPs on a genetic map of a segregating mapping population, (ii) to evaluate the population structure of a germplasm collection, and (iii) to detect patterns of LD decay among chromosomes for future genetic association studies in rubber tree. A total of 626 genotypes, including both germplasm accessions (368) and individuals from a genetic mapping population (254), were genotyped. A total of 77,660 and 21,283 SNPs were detected by GBS in the germplasm and mapping populations, respectively. The mapping population, which was previously mapped, was constructed with 1,062 markers, among which only 576 SNPs came from GBS, reducing the average interval between two adjacent markers to 4.4 cM. SNPs from GBS genotyping were used for the analysis of genetic structure and LD estimation in the germplasm accessions. Two groups, which largely corresponded to the cultivated and wild populations, were detected using STRUCTURE and via principal coordinate analysis. LD analysis, also using the mapped SNPs, revealed that non-random associations varied along chromosomes, with regions of high LD interspersed with regions of low LD. Considering the length of the genetic map (4,693 cM) and the mean LD (0.49 for cultivated and 0.02 for wild populations), a large number of evenly spaced SNPs would be needed to perform genome-wide association studies in rubber tree, and the wilder the genotypes used, the more difficult the ma
- Published
- 2018
27. Genetic diversity associated with natural rubber quality in elite genotypes of the rubber tree.
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Sant'Anna, Isabela de Castro, Gouvêa, Ligia Regina Lima, Martins, Maria Alice, Scaloppi Junior, Erivaldo José, de Freitas, Rogério Soares, and Gonçalves, Paulo de Souza
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GENOTYPES ,RUBBER ,BREEDING ,MACHINE learning ,ACETONE - Abstract
The objective of this study was to evaluate the genetic variability of natural rubber latex traits among 44 elite genotypes of the rubber tree [Hevea brasiliensis (Willd. ex Adr. de Juss.) Müell. Arg.]. Multivariate analysis and machine learning techniques were used, targeting the selection of parents that demonstrate superior characters. We analyzed traits related to technological or physicochemical properties of natural rubber latex, such as Wallace plasticity (P
0 ), the plasticity retention index [PRI (%)], Mooney viscosity (VR ), ash percentage (Ash), acetone extract percentage (AE), and nitrogen percentage (N), to study genetic diversity. Multivariate [unweighted pair group method with arithmetic means (UPGMA) and Tocher)] and machine learning techniques [K-means and Kohonen's self-organizing maps (SOMs)] were employed. The genotypes showed high genetic variability for some of the evaluated traits. The traits PRI, Ash, and PO contributed the most to genetic diversity. The genotypes were classified into six clusters by the UPGMA method, and the results were consistent with the Tocher, K-means and SOM results. PRI can be used to improve the industrial potential of clones. The clones IAC 418 and PB 326 were the most divergent, followed by IAC 404 and IAC 56. These genotypes and others from the IAC 500 and 400 series could be used to start a breeding program. These combinations offer greater heterotic potential than the others, which can be used to improve components of rubber latex quality. Thus, it is important to consider the quality of rubber latex in the early stage of breeding programs. [ABSTRACT FROM AUTHOR]- Published
- 2021
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28. High-resolution genetic map and QTL analysis of growth-related traits ofHevea brasiliensiscultivated under suboptimal temperature and humidity conditions
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Conson, André Ricardo Oliveira, primary, Taniguti, Cristiane Hayumi, additional, Amadeu, Rodrigo Rampazo, additional, Andreotti, Isabela Aparecida Araújo, additional, de Souza, Livia Moura, additional, dos Santos, Luciano Henrique Braz, additional, Rosa, João Ricardo Bachega Feijó, additional, Mantello, Camila Campos, additional, da Silva, Carla Cristina, additional, Scaloppi Junior, Erivaldo José, additional, Ribeiro, Rafael Vasconcelos, additional, Le Guen, Vincent, additional, Garcia, Antonio Augusto Franco, additional, Gonçalves, Paulo de Souza, additional, and de Souza, Anete Pereira, additional
- Published
- 2018
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29. Resistência a ácaros de clones de seringueira nas condições do noroeste paulista
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Vieira, Marineide Rosa, primary, Celoto, Fernando Juari, additional, Scaloppi Junior, Erivaldo José, additional, and Agustini, José Antonio, additional
- Published
- 2017
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30. Integrated genetic map construction for a full-sib cross family of Hevea brasiliensis Muell-Arg
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Conson, Andre R.O., Andreotti, Isabela A.A., Souza, Livia Moura, Mantello, Camilia Campos, Silva, Carla Cristina, Santos, L.H.B., Scaloppi Junior, Erivaldo José, Le Guen, Vincent, Garcia, Antonio Augusto Franco, Gonçalves, Paulo De Souza, and Souza, Anete Pereira
- Subjects
F30 - Génétique et amélioration des plantes ,H20 - Maladies des plantes - Abstract
Rubber tree (Hevea brasiliensis) is a native species of Amazon rainforest. This region offers optimal condition for rubber tree growth but also for the fungus Microcyclus ulei development, which causes the South American Leaf Blight (SALB) disease. For this reason, rubber tree is planted in escape regions, such as São Paulo state. The long juvenile period and its perennial nature leads to difficulties for genetic improvement. Molecular markers allows the construction of genetic maps and Quantitative Trait Loci detection (QTL), which can improve and accelerate the breeding scheme. We developed a genetic linkage map of a full-sib population derived from a cross between GT1 and RRIM701 composed of 144 individuals installed at the Agronomical Institute (IAC) in Votuporanga, São Paulo. A total of 227 microsatellite markers were used to construct the integrated linkage map using a multipoint technology based on Hidden Markov Models, with LOD score threshold of 5 and recombination fraction of 0.4. From the total markers mapped, 142 (62.55%) followed a segregation ratio of 1:1:1:1, 45 (19.82%) 1:2:1 and 40 (17.62%) 1:1. The final framework map consists of 23 linkage groups with a total map length of 2583.67 cM and an average marker density of one marker every 10 cM. The largest group has 423.95 cM. Six linkage groups were composed of two or three markers that reflects an incomplete coverage of genome. This genetic map allows localize Quantitative Trait Loci (QTLs) which may help to obtain phenotypes adapted to sub-optimal regions.
- Published
- 2015
31. Efeito da poda apical nos atributos morfofisiológicos do porta-enxerto clonal de seringueira GT 1.
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Casagrande Pereira, Amanda, Scaloppi Junior, Erivaldo José, Costa, Edilson, Mamoré Martins, Gustavo Luís, and Cristina de Souza, Noemi
- Abstract
Copyright of Ciência Florestal (01039954) is the property of Ciencia Florestal and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2019
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32. Genetic diversity strategy for the management and use of rubber genetic resources: more than 1,000 wild and cultivated accessions in a 100-genotype core collection
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Moura De Souza, Livia, Le Guen, Vincent, Cerqueira-Silva, Carlos Bernard Moreno, Silva, Carla Cristina, Mantello, Camilia Campos, Conson, Andre R.O., Gomes Vianna, João Paulo, Zucchi, Maria Imaculada, Scaloppi Junior, Erivaldo José, De Freitas Fialho, Josefino, Teixeira de Moraes, Mario Luis, De Souza Gonçalves, Paulo, Pereira de Souza, Anete, Moura De Souza, Livia, Le Guen, Vincent, Cerqueira-Silva, Carlos Bernard Moreno, Silva, Carla Cristina, Mantello, Camilia Campos, Conson, Andre R.O., Gomes Vianna, João Paulo, Zucchi, Maria Imaculada, Scaloppi Junior, Erivaldo José, De Freitas Fialho, Josefino, Teixeira de Moraes, Mario Luis, De Souza Gonçalves, Paulo, and Pereira de Souza, Anete
- Abstract
The rubber tree [Hevea brasiliensis (Willd. ex Adr. de Juss.) Muell. Arg.] is the only plant species worldwide that is cultivated for the commercial production of natural rubber. This study describes the genetic diversity of the Hevea spp. complex that is available in the main ex situ collections of South America, including Amazonian populations that have never been previously described. Genetic data were analyzed to determine the genetic structure of the wild populations, quantify the allelic diversity and suggest the composition of a core collection to capture the maximum genetic diversity within a minimal sample size. A total of 1,117 accessions were genotyped with 13 microsatellite markers. We identified a total of 408 alleles, 319 of which were shared between groups and 89 that were private in different groups of accessions. In a population structure and principal component analysis, the level of clustering reflected a primary division into the following two subgroups: cluster 1, which consisted of varieties from the advanced breeding germplasm that originated from the Wickham and Mato Grosso accessions; and cluster 2, which consisted of the wild germplasm from the Acre, Amazonas, Pará and Rondônia populations and Hevea spp. The analyses revealed a high frequency of gene flow between the groups, with the genetic differentiation coefficient (GST) estimated to be 0.018. Additionally, no distinct separation among the H. brasiliensis accessions and the other species from Amazonas was observed. A core collection of 99 accessions was identified that captured the maximum genetic diversity. Rubber tree breeders can effectively utilize this core collection for cultivar improvement. Furthermore, such a core collection could provide resources for forming an association panel to evaluate traits with agronomic and commercial importance. Our study generated a molecular database that should facilitate the management of the Hevea germplasm and its use for subsequent genetic an
- Published
- 2015
33. Genetic parameters and estimated genetic gains in young rubber tree progenies
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Verardi, Cecília Khusala, Scaloppi Junior, Erivaldo José, Silva, Guilherme Augusto Peres, Gouvêa, Lígia Regina Lima, and Gonçalves, Paulo de Souza
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rubber yield ,Hevea brasiliensis ,early selection ,annual girth growth ,multi-effect index ,tamanho efetivo populacional ,seleção precoce ,índice multiefeito ,produção de borracha ,effective population size ,crescimento anual do caule - Abstract
The objective of this work was to assess the genetic parameters and to estimate genetic gains in young rubber tree progenies. The experiments were carried out during three years, in a randomized block design, with six replicates and ten plants per plot, in three representative Hevea crop regions of the state of São Paulo, Brazil. Twenty-two progenies were evaluated, from three to five years old, for rubber yield and annual girth growth. Genetic gain was estimated with the multi-effect index (MEI). Selection by progenies means provided greater estimated genetic gain than selection based on individuals, since heritability values of progeny means were greater than the ones of individual heritability, for both evaluated variables, in all the assessment years. The selection of the three best progenies for rubber yield provided a selection gain of 1.28 g per plant. The genetic gains estimated with MEI using data from early assessments (from 3 to 5-year-old) were generally high for annual girth growth and rubber yield. The high genetic gains for annual girth growth in the first year of assessment indicate that progenies can be selected at the beginning of the breeding program. Population effective size was consistent with the three progenies selected, showing that they were not related and that the population genetic variability is ensured. Early selection with the genetic gains estimated by MEI can be made on rubber tree progenies. O objetivo deste trabalho foi avaliar os parâmetros genéticos e estimar ganhos genéticos em progênies jovens de seringueira. Os experimentos foram realizados durante três anos, em delineamento de blocos ao acaso, com seis repetições e dez plantas por parcela, em três regiões representativas da heveicultura paulista. Vinte e duas progênies foram avaliadas, dos três aos cinco anos de idade, quanto à produção de borracha e incremento anual do caule. O ganho genético foi estimado com o índice multiefeitos (IME). A seleção pela média das progênies proporcionou maior ganho genético do que a seleção baseada em indivíduos, já que os valores de herdabilidade das médias de progênies foram maiores do que os da herdabilidade individual, para ambas as variáveis, em todos os anos de avaliação. A seleção das três melhores progênies quanto à produção de borracha proporcionou um ganho de seleção de 1,28 g por planta. Os ganhos genéticos estimados pelo IME com dados das primeiras avaliações (dos 3 aos 5 anos) foram altos em geral, para produção de borracha e incremento anual do caule. Os elevados ganhos genéticos obtidos para incremento anual no primeiro ano de avaliação indicam que as progênies podem ser selecionadas no início do programa de melhoramento. O tamanho efetivo da população foi condizente com as três progênies selecionadas e mostrou que elas não são aparentadas e que a variabilidade genética da população está garantida. A seleção precoce, com os ganhos genéticos estimados pelo IME, pode ser feita em progênies de seringueira.
- Published
- 2013
34. Prediction of direct and indirect genetic gains and genotypic correlations in rubber tree progenies
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Verardi, Cecília Khusala, Scaloppi Junior, Erivaldo José, and Gonçalves, Paulo de Souza
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Hevea brasiliensis ,early selection ,selection cycle ,ciclo de seleção ,direct and indirect method ,seleção precoce ,método direto e indireto - Abstract
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 variables analyzed. Total gains obtained were high, especially for girth increase and rubber yield, which were 93.38 and 105.95%, respectively. Young progeny selection can maximize the expected genetic gains, reducing the rubber tree selection cycle. O objetivo deste trabalho foi estimar os parâmetros genéticos, as correlações genotípicas e fenotípicas, e os ganhos genéticos diretos e indiretos entre e dentro de progênies de seringueira (Hevea brasiliensis). O experimento foi instalado no Município de Jaú, SP. Utilizou-se o delineamento de blocos ao acaso, com 22 tratamentos (progênies), 6 repetições e 10 plantas por parcela, no espaçamento de 3x3 m. Progênies de três anos de idade foram avaliadas quanto ao perímetro do caule, à produção de borracha e à espessura de casca, pelo método de ganhos diretos e indiretos e por correlações genotípicas. A variável que apresentou as melhores correlações foi o número de anéis dos vasos laticíferos, que se correlacionou positiva e significativamente com perímetro do caule e espessura de casca. Os ganhos de seleção entre progênies foram maiores que dentro de progênies, para todas as variáveis avaliadas. Os ganhos totais obtidos foram altos, principalmente para incremento do caule e produção de borracha, com valores de 93,38 e 105,95%, respectivamente. A seleção de progênies jovens pode maximizar os ganhos genéticos, o que reduz o ciclo de seleção da seringueira.
- Published
- 2011
35. Ganho genético com base no tamanho efetivo populacional de progênies de seringueira
- Author
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Arantes, Flávio Cese, Gonçalves, Paulo de Souza, Scaloppi Junior, Erivaldo José, Moraes, Mario Luiz Teixeira de, and Resende, Marcos Deon Vilela de
- Subjects
teste precoce HMM ,HMM test ,Hevea brasiliensis ,índice multiefeitos ,REML/BLUP ,multi-effects index - Abstract
O objetivo deste trabalho foi estimar os ganhos genéticos de um teste de progênies de seringueira para a produção de borracha seca e, com base no maior tamanho efetivo populacional e maior ganho genético, obter os melhores indivíduos. Foram utilizadas 30 progênies de meios-irmãos, provenientes de sementes de polinização mista - alogamia e autogamia - de testes clonais no Estado de São Paulo. Utilizou-se o delineamento experimental de blocos ao acaso, com 30 tratamentos (progênies), 3 repetições e parcelas lineares de 10 plantas, em um espaçamento de 3x3 m, o que totalizou 900 plantas úteis. Aos três anos, o perímetro, a 50 cm do solo (PA50), e a produção de borracha seca (PBS) foram avaliadas por meio do teste precoce de produção Hamaker Morris-Mann (HMM). As variáveis foram analisadas pelo método de modelo linear misto, via procedimento REML/BLUP, em progênies com sistema reprodutivo misto e taxa de autofecundação de 22%. A identificação dos 20 melhores indivíduos quanto à PBS e ao PA50 proporcionou ganho genético de 67,96 e 16,48%, respectivamente, e um coeficiente de endogamia de aproximadamente 2,82%. O teste de progênies proporciona produção de sementes com melhor valor genético, grande variabilidade e baixa endogamia The objective of this work was to evaluate genetic gains of a rubber tree progeny test for dry rubber yield and, based in the largest effective size and largest genetic gain, to get the best individuals. Thirty progenies of half-sib from seeds of mixed pollination - autogamy and outcrossing - clone tests from state of São Paulo were used. An experimental design in randomized block was used with 30 treatments (progenies), three replications, and plots of 10 plants, spaced 3x3 m, comprising a total of 900 useful plants. At three years old, girth growth at 50 cm of the ground (PA50) and dry rubber yield (PBS) were evaluated using the test Hamaker-Mann Morris (HMM). The variables were analyzed through the method of linear mixed model REML/BLUP in progenies that showed mixed mating system and self-pollination rate of 22%. The identification of the 20 best individuals for PBS and PA50 provided a genetic gain of 67.96 and 16.48%, respectively, and an inbreeding coefficient of approximately 2.82%. The progeny test provides seed production with better breeding value, high genetic variability and low inbreeding
- Published
- 2010
36. Genetic Diversity Strategy for the Management and Use of Rubber Genetic Resources: More than 1,000 Wild and Cultivated Accessions in a 100-Genotype Core Collection
- Author
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de Souza, Livia Moura, primary, Le Guen, Vincent, additional, Cerqueira-Silva, Carlos Bernardo Moreno, additional, Silva, Carla Cristina, additional, Mantello, Camila Campos, additional, Conson, Andre Ricardo Oliveira, additional, Vianna, João Paulo Gomes, additional, Zucchi, Maria Imaculada, additional, Scaloppi Junior, Erivaldo José, additional, Fialho, Josefino de Freitas, additional, de Moraes, Mario Luis Teixeira, additional, Gonçalves, Paulo de Souza, additional, and Souza, Anete Pereira de, additional
- Published
- 2015
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37. Propagação de espécies de Annonaceae com estacas caulinares
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Scaloppi Junior, Erivaldo José [UNESP], Universidade Estadual Paulista (Unesp), Martins, Antonio Baldo Geraldo [UNESP], and Leonel, Sarita [UNESP]
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Anonacea ,Cutting ,Plantas - Propagação por estaquia ,Estaca caulinar - Abstract
Made available in DSpace on 2014-06-11T19:33:40Z (GMT). No. of bitstreams: 0 Previous issue date: 2007-02-06Bitstream added on 2014-06-13T19:23:55Z : No. of bitstreams: 1 scaloppijunior_ej_dr_jabo.pdf: 741225 bytes, checksum: d3fbd350d5a06e38de92b2c136e4409b (MD5) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Seis espécies de Annonaceae (Annona cherimola x Annona squamosa - atemóia; Annona glabra - araticum-do-brejo; Rollinia sp. - araticum-de-terra-fria; Rollinia emarginata - araticum-mirim; Rollinia silvatica e Rollinia mucosa - biribá) foram propagadas por estacas caulinares. O efeito da juvenilidade no enraizamento de estacas, através da comparação entre plantas jovens (com um e dois anos) e adultas, foi verificado em Annona glabra, Rollinia mucosa e Rollinia sp. Nas duas primeiras espécies, as estacas foram tratadas com ácido indolbutírico (IBA) (0, 1000, 3000, 5000 e 7000 mgL-1) por imersão rápida, em 2005 e 2006. Em Rollinia sp. as estacas foram tratadas com IBA (0, 100, 200 e 400 mgL-1) por imersão lenta em combinação com boro (0, 50, 100 e 150 mgL-1), em 2006. Como resultados, em Rollinia mucosa apenas o material com um ano manifestou enraizamento, perdendo essa capacidade aos dois anos e igualando-se ao material adulto. As estacas de Annona glabra com um ano apresentaram enraizamento superior em relação às de dois anos e adultas. Rollinia sp. apresentou mortalidade em todas as estacas adultas e apenas algumas estacas jovens sobreviveram e manifestaram enraizamento. Com Rollinia emarginata foram realizados experimentos em três ambientes diferentes, sendo em 2005 na UNESP/FCAV microaspersão e UNESP/FCA microaspersão e em 2006 na UNESP/IB nebulização, utilizando IBA e boro nas mesmas concentrações das utilizadas para Rollinia sp. Como resultados, o ambiente foi fundamental para a sobrevivência e conseqüente manutenção de folhas nas estacas, o que promoveu enraizamento e melhores resultados na nebulização em relação à microaspersão. A concentração de 100 mgL-1 IBA promoveu maior enraizamento. Com Rollinia silvatica realizou-se dois experimentos, via imersão rápida em 2005 e imersão lenta em 2006... Six Annonaceae species (Annona cherimola x Annona squamosa, Annona glabra, Rollinia sp., Rollinia emarginata, Rollinia silvatica and Rollinia mucosa) were propagated by cutting. The influence of juvenility in rooting cuttings was verified in Annona glabra, Rollinia sp. and Rollinia mucosa by using plants with one and twoyear- old (juvenile forms) and mature stock plants. In Annona glabra and Rollinia mucosa the cuttings were treated with IBA as a quick dip solution at 0, 1000, 3000, 5000 or 7000 mgL-1. Rollinia sp. cuttings were treated with IBA as a slow dip solution at 0, 100, 200 or 400 mgL-1 blending with boron at 0, 50, 100 or 150 mgL-1. In Rollinia mucosa only the one-year-old cuttings rooting and the mature cuttings failed to rooting. In Annona glabra the one-year-old cuttings presented the best values. Both two-yearold and mature cuttings gave the same results. Three experiments were carried out with Rollinia emarginata, being two in a mist system and a third in a fog system. The cuttings were treated with IBA and boron with a slow dip as well as having mentioned above. The fog system was responsible by the success in maintenance of leaves in cuttings and consequent rooting. The doses of 100 mgL-1 IBA promotes the best results. Cuttings from Rollinia silvatica were treated by quick dip in 2005 and by slow dip in 2006. The survival of cuttings was low and the Mn content might have influenced the rooting. In relation to A. cherimola x A. squamosa experiments were carried out in 2005 and 2006 by using apical and sub-apical leaf cuttings with a quick dip. Apical cuttings presented the best rooting without IBA (testify), probably possessing adequate endogenous auxin. The sub-apical cuttings having requirement of exogenous auxins to promote better results than the testify.
- Published
- 2007
38. De Novo Assembly and Transcriptome Analysis of the Rubber Tree (Hevea brasiliensis) and SNP Markers Development for Rubber Biosynthesis Pathways
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Mantello, Camila Campos, primary, Cardoso-Silva, Claudio Benicio, additional, da Silva, Carla Cristina, additional, de Souza, Livia Moura, additional, Scaloppi Junior, Erivaldo José, additional, de Souza Gonçalves, Paulo, additional, Vicentini, Renato, additional, and de Souza, Anete Pereira, additional
- Published
- 2014
- Full Text
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39. Estaquia em Anonas
- Author
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Scaloppi Junior, Erivaldo José, primary and Martins, Antonio Baldo Geraldo, additional
- Published
- 2014
- Full Text
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40. Resistência de clones de seringueira à infestação por ácaros
- Author
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Vieira, Marineide Rosa, primary, Martins, Gustavo Luís Mamoré, additional, and Scaloppi Junior, Erivaldo José, additional
- Published
- 2013
- Full Text
- View/download PDF
41. Genetic parameters and estimated genetic gains in young rubber tree progenies
- Author
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Verardi, Cecília Khusala, primary, Scaloppi Junior, Erivaldo José, additional, Silva, Guilherme Augusto Peres, additional, Gouvêa, Lígia Regina Lima, additional, and Gonçalves, Paulo de Souza, additional
- Published
- 2013
- Full Text
- View/download PDF
42. Adaptability and stability in rubber tree progenies under different environmental conditions
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Arantes, Flávio Cese, primary, Scaloppi Junior, Erivaldo José, additional, Gonçalves, Paulo Souza, additional, Moraes, Mario Luiz Teixeira de, additional, Gonçalves, Elaine Cristine Piffer, additional, and Resende, Marcos Deon Vilela de, additional
- Published
- 2013
- Full Text
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43. Genetic diversity of cultivated accessions and wild species of rubber tree using EST‑SSR markers
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Perseguini, Juliana Morini Küpper Cardoso, primary, Romão, Lineu Roberto de Castro, additional, Briñez, Boris, additional, Scaloppi Junior, Erivaldo José, additional, Gonçalves, Paulo de Souza, additional, and Benchimol, Luciana Lasry, additional
- Published
- 2012
- Full Text
- View/download PDF
44. Genetic parameters and correlation in early measurement cycles in rubber trees
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Silva, Guilherme Augusto Peres, primary, Gouvêa, Lígia Regina Lima, additional, Verardi, Cecília Khusala, additional, de Resende, Marcos Deon Vilela, additional, Scaloppi Junior, Erivaldo José, additional, and Gonçalves, Paulo de Souza, additional
- Published
- 2012
- Full Text
- View/download PDF
45. Prediction of direct and indirect genetic gains and genotypic correlations in rubber tree progenies
- Author
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Verardi, Cecília Khusala, primary, Scaloppi Junior, Erivaldo José, additional, and Gonçalves, Paulo de Souza, additional
- Published
- 2011
- Full Text
- View/download PDF
46. Different methods to assess yield temporal stability in rubber
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Gouvêa, Lígia Regina Lima, primary, Silva, Guilherme Augusto Peres, additional, Scaloppi Junior, Erivaldo José, additional, and Gonçalves, Paulo de Souza, additional
- Published
- 2011
- Full Text
- View/download PDF
47. Comparação entre folhas sombreadas de sete clones adultos de seringueira
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Conforto, Elenice de Cássia, primary, Bittencourt Júnior, Nelson Sabino, additional, Scaloppi Junior, Erivaldo José, additional, and Moreno, Rogério Manoel Biagi, additional
- Published
- 2011
- Full Text
- View/download PDF
48. Ganho genético com base no tamanho efetivo populacional de progênies de seringueira
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Arantes, Flávio Cese, primary, Gonçalves, Paulo de Souza, additional, Scaloppi Junior, Erivaldo José, additional, Moraes, Mario Luiz Teixeira de, additional, and Resende, Marcos Deon Vilela de, additional
- Published
- 2010
- Full Text
- View/download PDF
49. Performance of new Hevea clones from IAC 400 series
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Gonçalves, Paulo de Souza, primary, Silva, Marcelo de Almeida, additional, Aguiar, Adriano Tosoni da Eira, additional, Martins, Maria Alice, additional, Scaloppi Junior, Erivaldo José, additional, and Gouvêa, Lígia Regina Lima, additional
- Published
- 2007
- Full Text
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50. Genetic variability for girth growth and rubber yield in Hevea brasiliensis
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Gonçalves, Paulo de Souza, primary, Silva, Marcelo de Almeida, additional, Gouvêa, Ligia Regina Lima, additional, and Scaloppi Junior, Erivaldo José, additional
- Published
- 2006
- Full Text
- View/download PDF
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