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| Registros recuperados: 21 | |
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| Pereira,Ricardo B; Carvalho,Agnaldo DF; Pinheiro,Jadir B; Silva,Giovani O; Vieira,Jairo V. |
| O objetivo deste trabalho foi avaliar o potencial agronômico de 24 híbridos de cenoura, sendo nove obtidos pelo cruzamento entre linhagens de origem tropical (grupo Brasília: CNPH-520 e CNPH-536) e temperada (macho-estéreis: CNPH-610, CNPH-664, CNPH-633, CNPH-712 e CNPH-671) e 15 obtidos do cruzamento entre linhagens de origem tropical (CNPH-1 a CNPH-15) e a linhagem macho-estéril CNPH-612. Entre 2011 e 2012 foram realizados dois experimentos em blocos casualizados com três repetições, em que a parcela experimental consistiu de três fileiras duplas espaçadas por 20 cm, com 10 cm entre linhas. A queima-das-folhas ocorreu de forma natural no campo e foi avaliada 90 dias após a semeadura. Os rendimentos agronômicos foram avaliados 100 dias após a semeadura.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Daucus carota; Linhagem; Queima-das-folhas; Divergência genética.. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362015000100034 |
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| Pereira,Arione S; Silva,Giovani O; Bertoncini,Odone; Castro,Caroline M; Bortoletto,Antonio C; Hirano,Elcio; Azevedo,Fernanda Q; Lima,Mirtes F; Gomes,Cesar B; Dutra,Leonardo F; Suinaga,Fabio A; Carvalho,Agnaldo DF; Melo,Paulo E; Lopes,; Carlos A; Reisser Junior,Carlos; Pinheiro,Jadir B; Medeiros,Carlos AB; Krolow,Ana CR; Castro,Luis AS; Nazareno,Nilceu RX de. |
| ABSTRACT Camila potato, registered and protected as BRS F63, is a cultivar for the fresh market, with oval tubers of attractive appearance, having shallow eyes, yellow and smooth skin, and light yellow flesh. It presents medium specific gravity (dry matter), which allows greater culinary versatility than ‘Agata’. Cooked tubers have a firm texture and distinctive flavor, with potential for use even in gourmet kitchen, for preparing salads and other similar dishes. The vegetative growth cycle and dormancy are medium. It presents high productive potential, with high percentage of marketable tubers. It is moderately resistant to greening. Concerning physiological disorders in the tubers, ‘BRS F63’ (Camila) is similar to ‘Agata’ and ‘Asterix’ in crops of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Solanum tuberosum; Genetic breeding; PVY; Variety. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362018000100136 |
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| Vieira,Jairo V; Silva,Giovani O da; Charchar,João M; Fonseca,Maria Esther de N; Silva,João BC; Nascimento,Warley M; Boiteux,Leonardo S; Pinheiro,Jadir B; Reis,Ailton; Resende,Francisco V; Carvalho,Agnaldo DF de. |
| O grupo varietal Brasília apresenta ampla adaptação para cultivo em regiões/épocas de clima mais quente e tolerância às principais doenças que afetam o cultivo da cenoura em regiões tropicais e subtropicais ("queima-das-folhas" e as galhas radiculares causadas por nematóides do gênero Meloidogyne). No entanto, algumas cultivares desse segmento apresentam elevada incidência de defeitos genéticos que afetam a qualidade visual, sensorial e nutricional das raízes. A Embrapa Hortaliças desenvolveu a cultivar BRS Planalto, visando minimizar parte destas limitações. 'BRS Planalto' é uma variedade de polinização aberta que foi desenvolvida a partir da cultivar de cenoura 'Brasília'. Foram realizados 18 ciclos de seleção recorrente, com base no desempenho de... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Daucus carota; Carotenóides; Alternaria dauci; Meloidogyne spp.; Produtividade; Melhoramento. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362012000200030 |
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| Pinheiro,Jadir B; Silva,Giovani Olegário da; Biscaia,Danielle; Macedo,Amanda G; Suinaga,Fábio A. |
| ABSTRACT Genetic resistance is the most suitable mechanism to control root-knot nematodes in lettuce. However, information about the resistance levels of currently used lettuce cultivars is scarce in the literature. Thus, the objective of this research was to characterize lettuce cultivars for resistance to root-knot nematodes Meloidogyne incognita (Mi) and M. javanica (Mj), aiming the identification of resistance sources for breeding, and to transfer information to the productive sector. We evaluated 97 lettuce genotypes in tree trials. In the first one (preliminary assessment), 92 lettuce genotypes were inoculated simultaneously with M. incognita race 1 and M. javanica species, 17 days after sowing. The gall index (GI) was evaluated 41 days after... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lactuca sativa; M. incognita; M. javanica; Reproduction factor. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000300239 |
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| Pinheiro,Jadir B; Silva,Giovani Olegario da; Macêdo,Amanda G; Biscaia,Danielle; Ragassi,Carlos Francisco; Ribeiro,Cláudia SC; Carvalho,Sabrina Isabel C de; Reifschneider,Francisco José B. |
| ABSTRACT Thirty seven pepper genotypes, Capsicum chinense, C. annuum and C. frutescens, were characterized for resistance to three root-knot nematode species (Meloidogyne javanica, M. incognita race 1 and M. enterolobii) aiming to find potential resistance sources to be used in breeding programs. Three experiments were carried out, in 2013, 2014 and 2016, in a greenhouse, in randomized block design and six replicates, one plant/pot. Data were submitted to analysis of variance and average clustering. All evaluated pepper genotypes were resistant or immune to M. javanica. For M. incognita race 1, all accessions of C. frutescens, evaluated in the first experiment, were resistant, whereas the six accessions of C. chinense were susceptible. For M. incognita,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Capsicum spp.; Meloidogyne javanica; M. incognita race 1; M. enterolobii. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000100033 |
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| Pereira,Ricardo B; Pinheiro,Jadir B; Torres,Tiago B; Mendonça,José L; Lucas,Gilvaine C; Guimarães,Jorge A. |
| ABSTRACT Resistant rootstocks is one of the most effective method to control soilborne pathogens in tomato crops. Thus, this study was installed to evaluate the reaction of Solanum stramonifolium accesses to Fusarium oxysporum f. sp. lycopersici (Fol) races 2 and 3 and to Meloidogyne enterolobii (Me). The seedlings were grown in trays and inoculated separately with Fol races 2 and 3 at 50 days after planting by immersing the roots in the spore suspension (1×106 microconidia mL-1). Then, seedlings were transplanted in pots containing sterilized soil and kept in greenhouse conditions. To study the reaction of S. stramonifolium accesses to nematodes, we used 27-day old seedlings that were also planted in pots and inoculated with 6,000 eggs and second-stage... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Meloidogyne enterolobii; Solanum lycopersici; Fusarium wilt; Grafting; Genetic resistance. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362018000200235 |
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| Lima,Carlos Eduardo P; Fontenelle,Mariana R; Ligoski,Gabriela R; Madeira,Nuno R; Oliveira,Valter R; Pinheiro,Jadir B; Gondim,Rubens S; Lima,Mirtes F. |
| ABSTRACT The need to adapt agricultural crops to climate change and to develop more sustainable cultivation systems has been a major challenge for agriculture. In this study the effects of soil conservation practices were evaluated on production aspects of melon (Cucumis melo), cultivar BRS Araguaia, cultivated in a greenhouse under soil and climatic conditions of the Brazilian Cerrado. The adopted experimental design was of randomized blocks with three treatments (soil managements) and six replicates. We evaluated the following soil management systems: no-tillage (PD), minimum tillage (CM) and conventional tillage (PC) in two cycles. Increases in commercial productivity and average number of marketable fruits were observed for PD (61.5 and 61.2 t/ha;... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cucumis melo; No-tillage; Minimum tillage; Conventional tillage; Greenhouse. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362017000400576 |
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| Pereira,Ricardo B; Aguiar,Frederick M; Torres,Tiago B; Amaro,Geovani Bernardo; Lucas,Gilvaine C; Pinheiro,Jadir B. |
| RESUMO Phytophthora capsici causa prejuízos significativos em cultivos de abóbora (Cucurbita moschata) e morangas (Cucurbita maxima), incluindo a podridão de raízes e coroa, o crestamento foliar e a podridão de frutos, o que pode resultar em até 100% de perdas na produção. O objetivo deste estudo foi avaliar a reação de genótipos de abóboras e morangas a P. capsici. Inicialmente um experimento foi realizado para avaliar a agressividade de isolados de P. capsici de diferentes regiões. Posteriormente, dois experimentos foram realizados em casa de vegetação com 16 genótipos de C. moschata e sete de C. maxima em anos distintos, utilizando os isolados PCA 40 e PCA 43, identificados como os mais agressivos em teste preliminar. Como testemunhas foram utilizadas a... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cucurbita maxima; Cucurbita moschata; Podridão de fitóftora; Resistência. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362017000400599 |
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| Pinheiro,Jadir B; Silva,Giovani Olegario da; Biscaia,Danielle; Macedo,Amanda G; Correia,Núbia Maria. |
| ABSTRACT Root-knot nematodes cause great damage to vegetable crops in Brazil, besides having a large range of host plants, such as weeds. Weeds can maintain the inoculums or even favor the multiplication of these nematodes. In this study we evaluated the reaction of selected weed species, present in a vegetable production area, to root-knot nematodes Meloidogyne incognita and M. enterolobii. The trials were conducted in a greenhouse at Embrapa Hortaliças, Brasília-DF, in a completely randomized design with six replicates. Fifteen weed species were evaluated for M. incognita race 1, and 16 weed species were evaluated for M. enterolobii. Two tomato cultivars were evaluated as resistance and susceptibility standards. Gall index (IG), egg mass index (IMO),... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Weed host; Reproduction factor; Dissemination. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362019000400445 |
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| Carmona,Paula Andrea O; Pinheiro,Jadir B; Amaro,Geovani Bernardo; Silva,Giovani Olegario da; Peixoto,José Ricardo; Cares,Juvenil Enrique. |
| ABSTRACT One of the main obstacles for food production in many developing countries, as in Brazil, is the damage caused by root-knot nematodes, mainly those belonging to the genus Meloidogyne. This study aimed to assess the resistance levels of 44 sweet potato genotypes to M. javanica, M. incognita race 1 and M. enterolobii. These researches were carried out in 2014, under greenhouse conditions in Brasília-DF, Brazil. A completely randomized design with six replicates of one plant/plot/treatment was used. We determined the gall index (GI) and egg mass index (EMI) in the root system of each plant, the number of eggs and juveniles per gram of root with galls and the nematode reproduction factor. M. javanica was less aggressive and reproduced in only 9.09% of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ipomoea batatas; Plant breeding; Reproduction factor; Genetic resistance. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000200126 |
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| Pereira,Ricardo B; Carvalho,Agnaldo Donizete F de; Pinheiro,Jadir B; Silva,Giovani O da; Vieira,Jairo V. |
| A queima-das-folhas é responsável por perdas significativas na produção de cenoura e a resistência genética é uma das formas mais eficientes de controle da doença. Objetivou-se com este trabalho avaliar a resistência de progênies de populações de cenoura à queima-das-folhas com diferentes níveis de germoplasma tropical. Foram avaliadas as populações 561, 586 e 587 e como testemunhas as cultivares comerciais, Juliana e BRS Planalto. Foi utilizado o delineamento de blocos casualizados, com duas repetições e parcela de 1,2 m². A doença ocorreu de forma natural no campo e foi avaliada a cada cinco dias, a partir dos 72 dias após a semeadura. As populações 561, 586 e 587 e a cultivar BRS Planalto apresentaram severidades semelhantes e inferiores às cultivares... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Daucus carota; Alternaria dauci; Cercospora carotae; Xanthomonas hortorum pv. carotae. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362012000300022 |
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| Silva,Alysson J da; Oliveira,Gustavo HF de; Pastoriza,Rhuan JG; Maranhão,Eduardo HA; Pedrosa,Elvira MR; Maranhão,Sandra RVL; Boiteux,Leonardo S; Pinheiro,Jadir B; Carvalho Filho,José Luiz S de. |
| ABSTRACT Meloidogyne enterolobii (=M. mayaguensis) is an emerging plant pathogen capable of inducing root galls and yield reduction in a wide range of host species. This pathogen has also been reported as a global threat for tomato (Solanum lycopersicum) crop production mainly due to its ability to overcome the resistance meditated by the Mi-1 gene. Despite the potential importance of this nematode, sources of resistance to M. enterolobii are not yet available for breeding purposes. The main objective of the present work was to evaluate a large Solanum (section Lycopersicum) germplasm (comprising nine species and one botanic variety) aiming to identify useful sources of resistance to M. enterolobii. In the first screening assay, 101 accessions and the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Solanum spp.; Germplasm; Screening; Root-knot nematode. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362019000200188 |
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| Silva,Giovani Olegario da; Pereira,Arione da S; Azevedo,Fernanda Q; Carvalho,Agnaldo DF de; Pinheiro,Jadir B. |
| ABSTRACT The demand for cultivars suitable for processing, especially as frozen French fries, is increasing in Brazil. The Canadian expertise is high regarding the development of cultivars with processing characteristics; however, the growing conditions in Canada are quite different from those observed in Brazil. Thus, the aim of this work was to evaluate the performance of Canadian potato clones for their tuber yield, frying quality, plant vigor, and plant cycle, as potential new cultivars or to be used as a new source of variability for crosses. The experiments were conducted in Pelotas-RS and Canoinhas-SC, Brazil, in spring 2017. A set of 12 advanced Canadian potato clones from the Centre de Recherche Les Buissons, QB, Canada, were compared to three... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Solanum tuberosum; Tuber yield; Frying color; Specific gravity. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362019000400423 |
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| Silva,Giovani O da; Castro,Caroline M; Azevedo,Fernanda Q; Pereira,Arione S; Carvalho,Agnaldo DF de; Bortoletto,Antonio C; Pinheiro,Jadir B. |
| ABSTRACT The objective of this study was to evaluate the yield potential, frying quality, plant vigor, and vegetative cycle of Chilean potato clones, aiming to identify those with potential to become new cultivars or to be used in breeding programs. The experiments were conducted in Pelotas-RS and Canoinhas-SC, Brazil, in spring 2017. A set of 37 advanced potato clones belonging to the Agricultural Research Institute of Chile (INIA) was compared to commercial cultivars Agata, Asterix and Atlantic. A randomized complete block design with three replications of two rows with 10 plants each was used. Tuber yield, frying quality, plant vigor and vegetative cycle traits were evaluated. The data were submitted to analysis of variance, test for grouping means, and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Solanum tuberosum; Frying color; Specific gravity; Early maturity. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000200217 |
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| Registros recuperados: 21 | |
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