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	Provedor de dados PAB (13) Scientia Agricola (9) Rev. Bras. Frutic. (7) Bragantia (2) Rev. Ciênc. Agron. (1) Acta Botanica (1) BABT (1) Ciência Rural (1) Mais... Autor Oliveira,Eder Jorge de (35) Jesus,Onildo Nunes de (9) Santos,Vanderlei da Silva (8) Dantas,Jorge Luiz Loyola (5) Oliveira,Saulo Alves Santos de (5) Lima,Diego Souza de (4) Motta,Tiago Borges Nunes (4) Soares,Taliane Leila (4) Castellen,Milene da Silva (3) Freitas,Juan Paulo Xavier de (3) Lucena,Rangel Sales (3) Machado,Marlos Dourado (3) Santos,Leandro Ribeiro dos (3) Venturini,Marcela Tonini (3) Carmo,Cátia Dias do (2) Carvalho,Fabiana Moraes de (2) Costa,Juliana Leles (2) Costa,Maria Angélica Pereira de Carvalho (2) Cruz Neto,Alírio José da (2) Haddad,Fernando (2) Mais... Palavra-chave Manihot esculenta (7) Melhoramento genético (5) Genetic resources (4) Breeding (3) Carica papaya (3) Germoplasma (3) Manihot esculenta Crantz (3) Melhoramento (3) Passiflora edulis (3) Passion fruit (3) Caracterização (2) Disease (2) Passiflora (2) SSR (2) Seleção indireta (2) Shelf life (2) Variação genética (2) Alternative multiplication (1) Amylose content (1) Anacardiaceae (1) Mais... Tipo do documento Info:eu-repo/semantics/article (35) Ano 2020 (1) 2019 (2) 2018 (1) 2017 (1) 2016 (3) 2015 (5) 2014 (3) 2013 (7) 2012 (1) 2011 (6) 2010 (1) 2008 (2) 2007 (1) 2006 (1) Mais... País Brazil (35) Idioma Inglês (20) Português (15)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 35 Primeira ... 1 2 ... Última Diversidade genética de espécies do gênero Passiflora com o uso da estratégia Ward-MLM Rev. Bras. Frutic. Paiva,Claudia Lougon; Viana,Alexandre Pio; Santos,Eileen Azevedo; Silva,Raimundo Nonato Oliveira; Oliveira,Eder Jorge de. O uso de espécies silvestres de maracujá tem resultado em progresso no melhoramento genético da cultura. No entanto, o uso dessas tem sido incipiente, devido à existência de poucas informações sobre a diversidade genética disponível. Tais atividades são essenciais para que os recursos genéticos do gênero Passiflora sejam utilizados com sucesso. Este trabalho objetivou quantificar a diversidade genética existente entre onze espécies do gênero Passiflora (Passiflora edulis, P. mucronata, P. setacea, P. pentagona, P. caerulea, P. gibertii, P. cincinnata, P. suberosa, P. micropetala, P. alata e P.coccinea). Foram utilizados descritores morfológicos qualitativos e quantitativos, sendo analisados conjuntamente por meio do procedimento Ward-MLM (Modified Location... Tipo: Info:eu-repo/semantics/article Palavras-chave: Caracterização; Diversidade; Recurso genético; Passiflora; Ward-MLM. Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452014000200014 In vitro pollen germination and pollen viability in passion fruit (Passiflora spp.) Rev. Bras. Frutic. Soares,Taliane Leila; Jesus,Onildo Nunes de; Santos-Serejo,Janay Almeida dos; Oliveira,Eder Jorge de. The use of Passiflora species for ornamental purposes has been recently developed, but little is known about pollen viability and the potential for crossing different species. The objective of this study was to evaluate the pollen viability of six Passiflora species collected from different physiological stages of development through in vitro germination and histochemical analysis using dyes. The pollen was collected in three stages (pre-anthesis, anthesis and post-anthesis). Three compositions of culture medium were used to evaluate the in vitro germination, and two dyes (2,3,5-triphenyltetrazolium chloride, or TTC, and Lugol's solution) were used for the histochemical analysis. The culture medium containing 0.03% Ca(NO3) 4H2O, 0.02% of Mg(SO4 ).7H2O,... Tipo: Info:eu-repo/semantics/article Palavras-chave: Passion fruit; Pollen germination; Histochemical analysis; Wild passion fruit. Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452013000400023 Molecular characterization of papaya genotypes using AFLP markers Rev. Bras. Frutic. Oliveira,Eder Jorge de; Costa,Juliana Leles; Santos,Lucas Ferraz dos; Carvalho,Fabiana Moraes de; Silva,Aline dos Santos; Dantas,Jorge Luiz Loyola. Due to the low genetic variability reported in the commercial plantations of papaya (Carica papaya L.), the objective of this study was analyze the genetic diversity of 32 genotypes including cultivars, landraces, inbred lines, and improved germplasm using the AFLP technique (Amplified Fragment Length Polymorphism). The genetic distance matrix was obtained using the Nei and Li genetic distance and clustering was performed using the unweighted pair-method with arithmetic mean (UPGMA). Using 11 combinations of EcoRI/MseI primers, 383 polymorphic bands were obtained. On average, 34.8 polymorphic bands were obtained per primer combination. Five clusters were formed. The traditional cultivar 'Sunrise' and the inbred line CMF-L30-08 were the closest genotypes,... Tipo: Info:eu-repo/semantics/article Palavras-chave: Papaya breeding; Genetic resources; Genetic diversity; Carica papaya L. Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452011000300020 Avaliação agronômica de parentais e híbridos de maracujazeiro- amarelo Rev. Bras. Frutic. Neves,Cláudia Garcia; Jesus,Onildo Nunes de; Ledo,Carlos Alberto da Silva; Oliveira,Eder Jorge de. O presente trabalho objetiva determinar o potencial agronômico de genótipos de maracujazeiro-amarelo, visando a identificar e selecionar híbridos promissores. O experimento foi conduzido em área de produção no município de Cruz das Almas (BA), em delineamento de blocos casualizados, com três repetições, 41 genótipos (30 híbridos e 11 parentais), com parcela de 4 plantas. As características avaliadas foram: produtividade; número de frutos; massa média de frutos; espessura de casca; rendimento de suco; produtividade de suco e teor de sólidos solúveis totais. Houve diferença significativa entre os genótipos a 1% de probabilidade pelo teste F, para todas as variáveis em estudo, exceto para a característica rendimento de suco (p<0,06). Os genótipos avaliados... Tipo: Info:eu-repo/semantics/article Palavras-chave: Passiflora edulis Sims f. flavicarpa Deg.; Melhoramento genético; Caracterização físico-química; Dialelo. Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452013000100022 Identificação de microssatélites para o mamoeiro por meio da exploração do banco de dados de DNA Rev. Bras. Frutic. Oliveira,Eder Jorge de; Dantas,Jorge Luiz Loyola; Castellen,Milene da Silva; Machado,Marlos Dourado. Os marcadores microssatélites são ferramentas úteis em diversas análises genéticas em plantas. No caso do mamoeiro (Carica papaya L.), poucos locos de microssatélites foram descritos até o momento. Assim, o objetivo deste trabalho foi explorar a base de dados do GenBank / NCBI (National Center of Biotechnoloy Information) à procura de microssatélites de mamoeiro, visando a seu futuro uso em estudos genéticos e moleculares aplicados ao melhoramento genético. As seqüências foram obtidas no GenBank / NCBI, no formato FASTA, e analisadas para a presença de microssatélites com um mínimo de 20; 7 e 5 repetições dos motivos de mono-, di- e trinucleotídeos, respectivamente, e acima de 4 repetições para tetra- e pentanucleotídeos. Seqüências com mais de 90% de... Tipo: Info:eu-repo/semantics/article Palavras-chave: Marcador molecular; Carica papaya L.; SSR; GenBank. Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452008000300049 Variabilidade genética entre acessos de Umbu-Cajazeira mediante análise de marcadores ISSR Rev. Bras. Frutic. Santana,Ivonilda Barbosa Brito; Oliveira,Eder Jorge de; Soares Filho,Walter dos Santos; Ritzinger,Rogério; Amorim,Edson Perito; Costa,Maria Angélica Pereira de Carvalho; Moreira,Ricardo Franco Cunha. A umbu-cajazeira (Spondias sp.) é uma frutífera nativa do Semiárido brasileiro, ainda em fase de domesticação, cujos frutos apresentam excelentes perspectivas de aproveitamento comercial. O objetivo deste trabalho foi caracterizar a variabilidade genética entre acessos de umbu-cajazeira pertencentes ao Banco Ativo de Germoplasma de Fruteiras Tropicais da Embrapa Mandioca e Fruticultura, por meio de marcadores moleculares ISSR (Inter Simple Sequence Repeat). Foram analisados 17 acessos de umbu-cajazeira, com 25 marcadores ISSR, os quais produziram um total de 249 bandas, sendo 201 bandas polimórficas e 48 monomórficas. As dissimilaridades genéticas entre os acessos variaram de 0,247 a 0,665, com base no coeficiente de Jaccard. O método UPGMA (Unweighted... Tipo: Info:eu-repo/semantics/article Palavras-chave: Spondias sp.; Marcadores moleculares; Divergência genética; Anacardiaceae. Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452011000300022 Severidade de doenças em maracujazeiro para identificação de fontes de resistência em condições de campo Rev. Bras. Frutic. Oliveira,Eder Jorge de; Soares,Taliane Leila; Barbosa,Cristiane de Jesus; Santos-Filho,Hermes Peixoto; Jesus,Onildo Nunes de. O objetivo deste trabalho foi utilizar uma escala de severidade para algumas doenças do maracujazeiro, visando à identificação de fontes de resistência. Foram avaliados 75 acessos de Passiflora spp. em condições de campo, sob alta infecção natural dos patógenos, para a severidade da virose, nas folhas (VIFO), frutos (VIFR) e distribuição na planta (VIPL), bem como para verrugose nos frutos e ramos (VEFR e VERA, respectivamente) e antracnose nos frutos (ANFR). Houve alta variabilidade para resistência às doenças, embora poucos acessos tenham sido classificados como resistentes à VIFO, VIFR e VIPL, sendo que apenas um acesso de P. setacea (BGM237) foi considerado resistente aos três tipos de avaliações para virose. A maioria dos acessos de maracujazeiro-... Tipo: Info:eu-repo/semantics/article Palavras-chave: Passiflora; Melhoramento genético; Resistência genética e variabilidade genética. Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452013000200018 Non-hierarchical clustering of Manihot esculenta Crantz germplasm based on quantitative traits Rev. Ciênc. Agron. Oliveira,Eder Jorge de; Aud,Fabiana Ferraz; Morales,Cinara Fernanda Garcia; Oliveira,Saulo Alves Santos de; Santos,Vanderlei da Silva. ABSTRACT The knowledge of the phenotypic variation of cassava (Manihot esculenta Crantz) germplasm allows the estimative of the genetic variability to support the selection of contrasting genitors. Therefore, the aim of this work was to define homogeneous groups of cassava germplasm based on yield traits, disease resistance and root quality using K-means as a non-hierarchical method. Breeding values estimated by Best Linear Unbiased Predictor (BLUP) were used for the cluster analysis. The number of groups was defined according to the stabilization of the smallest within-group sum of squares. Seventeen clusters were defined to represent the diversity of the germplasm, whose number of accessions ranged from 7 (Group 15) to 69 (Group 9). In general,... Tipo: Info:eu-repo/semantics/article Palavras-chave: Cassava; Genetic resources; Diseases; Breeding; Genotypic data. Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902016000300548 Genotypic variation of traits related to quality of cassava roots using affinity propagation algorithm Scientia Agricola Oliveira,Eder Jorge de; Santana,Fernanda Alves; Oliveira,Luciana Alves de; Santos,Vanderlei da Silva. The conservation, sustainable evaluation and use of cassava (Manihot esculenta Crantz) genetic resources are essential to the development of new commercial varieties. This study aimed to evaluate the quality of cassava roots and to estimate genetic variation and clustering in cassava germplasm using the Affinity Propagation algorithm (AP), which is based on the concept of "message passing" between data points. AP finds "exemplars" of each group and members of the input set representative of clusters. The genotypic data of 474 cassava accessions were evaluated over a period of two years for starch yield (StYi), root dry matter (DMC), amylose content (AML), and the level of cyanogenic compounds (CyC). The AP algorithm enabled the formation of nine diversity... Tipo: Info:eu-repo/semantics/article Palavras-chave: Germplasm; Amylose content; Cyanogenic compounds; Yield. Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162015000100053 AMMI analysis of the adaptability and yield stability of yellow passion fruit varieties Scientia Agricola Oliveira,Eder Jorge de; Freitas,Juan Paulo Xavier de; Jesus,Onildo Nunes de. High yield stability and adaptability of yellow passion fruit varieties (Passiflora edulis Sims. f. flavicarpa Deg.) are highly desirable attributes when exploring different environments. This study aimed to evaluate the adaptability and yield stability of yellow passion fruit varieties using AMMI (additive main effects and multiplicative interaction) and other ancillary statistics. Twelve varieties were evaluated in eight environments. Analysis of variance showed effects attributable to the varieties (G), environment (E) and their interaction (G × E). The first two multiplicative components of the interaction accounted for 69% of the sum of squares. The scores of the principal interaction components showed high variability for the environments relative to... Tipo: Info:eu-repo/semantics/article Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162014000200008 Crop losses in Brazilian cassava varieties induced by the Cassava common mosaic virus Scientia Agricola Venturini,Marcela Tonini; Araújo,Taylane da Silva; Abreu,Emanuel Felipe Medeiros; Andrade,Eduardo Chumbinho de; Santos,Vanderlei da Silva; Silva,Marcos Roberto da; Oliveira,Eder Jorge de. ABSTRACT Despite the widespread distribution of the Cassava common mosaic virus (CsCMV) in Brazil, little is known about the losses it causes in yield. The effect of CsCMV on different varieties was evaluated by reference to several agronomic traits. Four field trials were established in 2012/2013 and 2013/2014 using six varieties of cassava. Following mechanical inoculation with CsCMV, the presence of the virus was confirmed using the ELISA assay. The evaluated traits were plant height (PH), dry matter content (DMC), harvest index (HI), aerial part yield (APY), root yield (RoY), and starch yield (StY) in both inoculated and non-inoculated plants. Overall, the presence of the virus contributed little to the reduction in PH, HI, and DMC across the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Manihot esculenta Crantz; Viruses; Root yield; Disease. Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162016000600520 Survey of fungi associated with cassava root rot from different producing regions in Brazil Scientia Agricola Boas,Sandielle Araújo Vilas; Oliveira,Saulo Alves Santos de; Bragança,Carlos Augusto Dórea; Ramos,Juliana Barros; Oliveira,Eder Jorge de. ABSTRACT: Although root rot is one of the major diseases affecting Brazilian cassava (Manihot esculenta Crantz.), little is known about the diversity of root rot pathogens. In this study, diseased plants exhibiting root rot symptoms were collected from cassava-producing regions in five Brazilian states: Bahia, Sergipe, Paraíba, Maranhão, Tocantins, and Paraná. Seventy isolates were obtained and assigned to species complexes based on rDNA's ITS (internal transcribed spacer of the ribosomal DNA) region (ITS1, ITS2 and 5.8S). A total of seven species complexes was found belonging to the genus Fusarium (56/74), followed by Lasiodiplodia (8/74), Neoscytalidium (6/74), and Diaporthe/Phomopsis complex (2/74), Phytophthora, and Corallomycetella (1/74 each). These... Tipo: Info:eu-repo/semantics/article Palavras-chave: Manihot esculenta; ITS barcode; Phylogeny; Soil-borne diseases. Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162017000100060 Triple categorical regression for genomic selection: application to cassava breeding Scientia Agricola Lima,Leísa Pires; Azevedo,Camila Ferreira; Resende,Marcos Deon Vilela de; Silva,Fabyano Fonseca e; Viana,José Marcelo Soriano; Oliveira,Eder Jorge de. ABSTRACT: Genome-wide selection (GWS) is currently a technique of great importance in plant breeding, since it improves efficiency of genetic evaluations by increasing genetic gains. The process is based on genomic estimated breeding values (GEBVs) obtained through phenotypic and dense marker genomic information. In this context, GEBVs of N individuals are calculated through appropriate models, which estimate the effect of each marker on phenotypes, allowing the early identification of genetically superior individuals. However, GWS leads to statistical challenges, due to high dimensionality and multicollinearity problems. These challenges require the use of statistical methods to approach the regularization of the estimation process. Therefore, we aimed to... Tipo: Info:eu-repo/semantics/article Palavras-chave: G-BLUP; BLASSO; Genomic prediction; Genomic heritability. Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162019001500368 Identification of duplicates in cassava germplasm banks based on single-nucleotide polymorphisms (SNPs) Scientia Agricola Albuquerque,Hilçana Ylka Gonçalves de; Oliveira,Eder Jorge de; Brito,Ana Carla; Andrade,Luciano Rogério Braatz de; Carmo,Cátia Dias do; Morgante,Carolina Vianna; Vieira,Eduardo Alano; Moura,Elisa Ferreira; Faleiro,Fábio Gelape. ABSTRACT: Genetic redundancy in cassava (Manihot esculenta Crantz) presents a challenge to efficient management of genetic resources. This study aimed to identify and define the genetic structure of duplicates in cassava germplasm from various Embrapa research units, using single-nucleotide polymorphism (SNP) markers. We evaluated 2,371 accessions with 20,712 SNPs. The identification of duplicates was performed based on multilocus genotypes (MLG), adopting a maximum genetic distance threshold of 0.05. The population structure was defined based on discriminant analysis of principal components (DAPC). A total of 1,757 unique and 614 duplicate accessions were identified. The redundancy of the collections ranged from 17 % (Belém, PA – Brazil) to 39 %... Tipo: Info:eu-repo/semantics/article Palavras-chave: Manihot esculenta Crantz; Genotyping-by-sequencing; Multilocus; Genetic resources. Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162019001400328 A leaf bud technique for rapid propagation of cassava (Manihot esculenta Crantz) Scientia Agricola Neves,Reizaluamar de Jesus; Souza,Leonardo Silva; Oliveira,Eder Jorge de. ABSTRACT The slow rate of multiplication is one of the main constraints on the production of cassava (Manihot esculenta Crantz). This work aimed to evaluate the use of leaf buds for rapid propagation of cassava varieties. Leaf buds were excised from three cassava varieties (BRS Kiriris, 98150-06 and 9624-09) for plantlet generation. The experiment was completely randomized with a 5 (age of mother plant) × 3 (position of the leaf buds on the stems) × 2 (agrochemical treatments) factorial design. Data were collected on leaf sprouting percentage (Spro.Per), plantlet height (Plant.Hei) and total dry mass of plantlets (Dry.Mass.Plant). There was a difference between the three traits for most of the varieties, demonstrating significant effects on the agronomic... Tipo: Info:eu-repo/semantics/article Palavras-chave: Sprouting; Cuttings; Alternative multiplication; Asexual propagation. Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162020000200600 Molecular-assisted selection for resistance to cassava mosaic disease in Manihot esculenta Crantz Scientia Agricola Carmo,Cátia Dias do; Silva,Maiane Suzarte da; Oliveira,Gilmara Alvarenga Fachardo; Oliveira,Eder Jorge de. The geminivirus complex known as cassava mosaic disease (CMD) is one of the most devastating viruses for cassava (Manihot esculenta Crantz). The aim of this study was to use molecular-assisted selection (MAS) to identify CMD-resistant accessions and ascertain promising crosses with elite Brazilian varieties. One thousand two hundred twenty-four accessions were genotyped using five molecular markers (NS169, NS158, SSRY028, SSRY040 and RME1) that were associated with resistance to CMD, along with 402 SNPs (single-nucleotide polymorphism). The promising crosses were identified using a discriminant analysis of main component (DAPC), and the matrix of genomic relationship was estimated with SNP markers. The CMD1 gene, previously described in M. glaziovii, was... Tipo: Info:eu-repo/semantics/article Palavras-chave: Manihot esculenta; Breeding; Disease; Virus. Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162015000600520 Molecular fingerprinting of Fusarium oxysporum f. sp. passiflorae isolates using AFLP markers Scientia Agricola Silva,Aline dos Santos; Oliveira,Eder Jorge de; Haddad,Fernando; Jesus,Onildo Nunes de; Oliveira,Saulo Alves Santos de; Costa,Maria Angélica Pereira de Carvalho. Fusarium oxysporum f. sp. passiflorae W.L. Gordon (FOP) is one of the most important fungal pathogens of passion fruits. Understanding molecular variation of isolates from different areas is of utmost importance. Molecular fingerprinting on 14 isolates of FOP were conducted using AFLP molecular markers (Amplified Fragment Length Polymorphism), and their genetic variability were estimated. Twenty-five AFLP primer combinations were selected for amplification of FOP isolates and one for Fusarium oxysporum f. sp. cubense W.C. Snyder &amp; H.N. Hansen (FOC), resulting in 99% polymorphic fragments, with an average of 40 fragments per primer combination. Specific fingerprints could be generated for most of the isolates evaluated; we observed a high power of... Tipo: Info:eu-repo/semantics/article Palavras-chave: Passion fruit; Fusarium wilt; Fingerprint; Variability; Molecular marker. Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162013000200008 Morphology and viability of pollen grains from passion fruit species (Passiflora spp.) Acta Botanica Soares,Taliane Leila; Jesus,Onildo Nunes de; Souza,Everton Hilo de; Santos-Serejo,Janay Almeida dos; Oliveira,Eder Jorge de. The characterization and viability of pollen grains are useful tools to guide crosses in breeding programs. The objective of this study was to describe the morphological patterns and viability of pollen grains from five accessions of Passiflora edulis f. flavicarpa O. Deg. and five accessions of Passiflora setacea DC. Pollen morphology descriptions were made using light microscopy and scanning electron microscopy, whereas the viability analysis was performed by in vitro germination and histochemical analysis (Lugol's solution and 2,3,5-triphenyltetrazolium chloride). Pollen grains assessed for germination were inoculated in culture medium containing Ca(NO3).4H2O (0.03%), Mg(SO4).7H2O (0.02%), KNO3 (0.01%), H3BO3 (0.01%), sucrose (15%) and agar (0.8%).... Tipo: Info:eu-repo/semantics/article Palavras-chave: In vitro germination; Histochemistry; Scanning electron microscopy; Passifloraceae; Pollen tube. Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062013000400018 Estimativas de correlações genotípicas e fenotípicas em germoplasma de maracujazeiro Bragantia Oliveira,Eder Jorge de; Santos,Vanderlei da Silva; Lima,Diego Souza de; Machado,Marlos Dourado; Lucena,Rangel Sales; Motta,Tiago Borges Nunes. O objetivo deste trabalho foi estimar as correlações genotípicas e fenotípicas entre 25 características morfológicas e agronômicas de folhas, flores e frutos de maracujazeiro. Assim, 17 acessos de germoplasma foram avaliados em delineamento de blocos ao acaso, com duas repetições e dez plantas úteis por parcela. Os dados foram padronizados e em seguida estimados os coeficientes de correlação fenotípica (r f) e genotípica (r g). Noventa correlações fenotípicas (30%) foram significativas pelo teste t, e em 83% dos casos, as correlações foram superiores a 0,60. Os resultados demonstram alta correlação genotípica entre as seguintes características: a) comprimento do androginóforo vs. largura da folha (r g = -0,61); b) espessura de casca vs. comprimento do... Tipo: Info:eu-repo/semantics/article Palavras-chave: Passiflora edulis Sims; Melhoramento vegetal; Germoplasma; Seleção indireta. Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052011000200002 Methodologies for selecting cassava with resistance to dry and black root rot under controlled conditions Bragantia Santiago,Camila Hohenfeld; Santana,Mariana Pereira; Cairo Junior,Luiz Rodriguez; Oliveira,Saulo Alves Santos de; Oliveira,Eder Jorge de. ABSTRACT Cassava root rot diseases such as dry and black root rot are listed among the major threats, since its affect the main product (tuberous roots), causing a progressive decline in yield and affecting subsequent crop cycles, being the use of resistant varieties the most reliable control measure on field level. The objective of this study was to identify inoculation methods for the early evaluation of genotypes, considering the level of resistance to dry (DRR) and black (BRR) root rot diseases. Different methodologies and plant tissues were evaluated, based on the immersion of cassava tissues (roots and stem cuttings), soil infestation, and inoculation of detached tissues (leaves, tuberous roots and stem cuttings). The following parameters were... Tipo: Info:eu-repo/semantics/article Palavras-chave: Manihot esculenta Crantz; Fusarium solani; Neoscytalidium hyalinum; Root diseases; Inoculation methods. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052018000300440 Registros recuperados: 35 Primeira ... 1 2 ... Última

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