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| Crevelari,Jocarla Ambrosim; Durães,Nayara Norrene Lacerda; Santos,Paulo Ricardo dos; Azevedo,Flávio Henrique Vidal; Bendia,Laila Cecília Ramos; Preisigke,Sandra da Costa; Gonçalves,Gabriel Moreno Bernardo; Ferreira Junior,José Arantes; Pereira,Messias Gonzaga. |
| ABSTRACT The aim of this study is to assess whether there is linear dependence between groups of morphoagronomic and bromatological traits in hybrid silage corn. Nineteen topcross hybrids and five checks were assessed in two different environments in Campos dos Goytacazes and Itaocara counties, Rio de Janeiro State, during the growing seasons 2013/2014. The study followed a randomized blocks design with four replicates. The phenotypic and canonical correlations between the groups of seven morphoagronomic and five bromatological traits were assessed. There is linear dependence between the group pairs of morphoagronomic, and bromatological variables. The morphoagronomic trait green mass yield can be adopted in indirect selection processes to indicate the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zea mays L.; Topcross; Tester; Multicollinearity. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052019000300337 |
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| Preisigke,Sandra da Costa; Viana,Alexandre Pio; Santos,Eileen Azevedo; Santos,Paulo Ricardo dos; Santos,Valquíria Oliveira dos; Ambrósio,Moisés; Silva,Flávia Alves da; Walter,Fernando Henrique de Barros. |
| ABSTRACT Combining the use of agronomic, disease-resistance, and molecular informationcan greatly contribute to genetic progress in breeding programs. This study was developed to estimate the genetic distance between genotypes derived from backcrosses and their parents using morphoagronomic and molecular information and information pertaining to resistance to the Cowpea aphid-borne mosaic virus (CABMV), and indicate genotypes with potential for generation advancement. The studied population consisted of 91 genotypes from the first backcross, oneinterspecific hybrid, and the species Passiflora setacea and P. edulis. For morphoagronomic characterization, the traits number of fruits, total fruit weight, average fruit weight, and area under the disease... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Passiflora; CABMV; Backcross; Parental proportion. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052020000100047 |
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| Souza,Yure Pequeno de; Santos,Paulo Ricardo dos; Nascimento,Maxwel Rodrigues; Costa,Kleyton Danilo da Silva; Lima,Thalyson Vasconcelos; Oliveira,Tâmara Rebecca Albuquerque de; Costa,Antônio Félix da; Pereira,Helton Santos; Silva,José Wilson da. |
| ABSTRACT: Using genotypes adapted to different regions is one of the main ways to increase Brazilian bean yield. The aim of the present study was to assess the genotypic performance of Carioca beans through mixed models. Fourteen Carioca bean genotypes were assessed in four locations in Pernambuco State (Arcoverde, Caruaru, Belém de São Francisco and São João counties) in 2015. The experiments followed a completely randomized block design, with three repetitions. Genetic parameters were estimated according to the REML/BLUP methodology, whereas genotype selection was based on the harmonic mean of relative performance of genetic values method (MHPRVG). The mean genotype heritability had moderate magnitude, high selective accuracy, besides allowing selection... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Phaseolus vulgaris L.; Adaptability; Productivity; REML/BLUP; Stability.. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000700201 |
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| Chagas,José Tiago Barroso; Santos,Paulo Ricardo dos; Daher,Rogério; Stida,Wanessa Francesconi; Vidal,Ana Kesia; Nascimento,Maxwel Rodrigues; Costa,Kleyton Danilo da Silva; Vivas,Marcelo; Amaral Júnior,Antônio Teixeira do; Menezes,Dimas. |
| ABSTRACT: The use of mixed models for evaluating diallel crosses is a highly timely option to the reliable prediction of progeny genetic values. In the sweet pepper crop, hybrids are commercially explored on a large scale, mainly because of their characteristics of economic importance. This study aimed to assess the potential of hybrids obtained from a partial diallel among five sweet pepper lines developed for the hydroponic cultivation system and two simple hybrids, by applying mixed models. It was performed crosses in the partial diallel scheme among the (L1B, L6, L7, L18, and L19) lines and the simple hybrids ‘Valdor’ and ‘Atlantis’. Plants were cultivated in hydroponic system with substrate and irrigated three times a day using nutrient solution. On... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Capsicum annuum; Combining ability; Hydroponic cultivation; REML/BLUP. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000800402 |
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| Santos,Paulo Ricardo dos; Costa,Kleyton Danilo da Silva; Nascimento,Maxwel Rodrigues; Lima,Thalyson Vasconcelos; Souza,Yure Pequeno de; Costa,Antonio Félix da; Silva,José Wilson da. |
| Abstract: The objective of this work was to determine the efficiency of a simultaneous selection for yield, stability, and adaptability of bean genotypes of the carioca and black groups. In the 2016 harvest, two experiments were carried out in the state of Pernambuco, Brazil: one for the carioca group, with 20 genotypes, in the municipalities of Caruaru, Arcoverde, and Belém de São Francisco; and the other for the black group, with 12 genotypes, in the municipalities of Caruaru and Arcoverde. The parameters were estimated by mixed models, and selection was performed by the harmonic mean of the relative performance of genetic values, using three strategies: selection based on the predicted genetic value, without interaction; selection based on the predicted... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Phaseolus vulgaris; Genotype x environment interaction; Heritability; Mixed models; REML/Blup. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000600736 |
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| Santos,Paulo Ricardo dos; Preisigke,Sandra da Costa; Viana,Alexandre Pio; Cavalcante,Natan Ramos; Sousa,Carlos Misael Bezerra de; Amaral Júnior,Antônio Teixeira de. |
| Abstract: The objective of this work was to estimate the genetic parameters and to evaluate the associations between vegetative and yield characteristics, in full-sib progenies of guava tree (Psidium guajava). The following characteristics were evaluated: yield per plant, number of fruits, fruit mass, plant height, stem diameter, and canopy volume. The estimation of genetic parameters was obtained by the REML/Blup procedure. Based on the breeding values predicted by Blup, the genetic and canonical correlations were estimated, and the genetic correlation coefficients were unfolded into direct and indirect effects on the character yield per plant using path analysis. Genetic variability was estimated for number of fruits (567.66) and yield per plant... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Psidium guajava; Correlations; Path analysis; REML/Blup.. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017000500303 |
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| Santos,Paulo Ricardo dos; Viana,Alexandre Pio; Gomes,Vicente Martins; Preisigke,Sandra da Costa; Almeida,Odimar Ferreira de; Santos,Eileen Azevedo; Rodrigues,Daniele Lima; Rodrigues,Rosana; Walker,Michael Andrew. |
| ABSTRACT: Genetically diverse interspecific hybrids of Vitis were selected for resistance to Pratylenchus brachyurus. Three segregating populations with 57 hybrid crosses were evaluated. The parents included Vitis romanetiiC166-043 × 07355-075, 06354-047 × Cereza and 06354-047 × Nocera, selected from the germplasm bank at the University of California, Davis, the United States. The experiment was arranged in a randomized block design, with three replications and three plants per plot. Root mass, nematodes per gram of root and reproduction factor were determined and used as quantitative variables; 16 multi categoric descriptors were also evaluated. The traits were analyzed using the Ward-Modified Location Model procedure (Ward-MLM) for the composition of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Vitis genotypes; Nematode; Root; Genetic variability. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162019001500424 |
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