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| Azevedo,Alcinei Mistico; Andrade Júnior,Valter Carvalho de; Castro,Bárbara Monteiro de Castro e; Oliveira,Celso Mattes de; Pedrosa,Carlos Enrrik; Dornas,Marcus Flávius Silva; Valadares,Nermy Ribeiro. |
| O objetivo deste trabalho foi avaliar os parâmetros genéticos das características agronômicas e de tolerância ao florescimento precoce de onze cultivares de alface, bem como verificar a existência de associação entre as características. O experimento foi realizado em ambiente protegido, em delineamento de blocos ao acaso, com quatro repetições e doze plantas por parcela. Quarenta e cinco dias após o transplantio das mudas, foram mensuradas as seguintes características: massa de matéria fresca total e "comercial" da parte aérea, massa de matéria seca "comercial" da parte aérea, massa de matéria fresca e seca da raiz, diâmetro e circunferência da cabeça, altura de planta, número de folhas por planta e número de dias até a antese. Há variabilidade genética... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lactuca sativa; Ambiente protegido; Antese; Correlação; Pendoamento. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2014000200118 |
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| Gomes,Jorge Augusto Assis; Andrade Júnior,Valter Carvalho; Oliveira,Celso Mattes de; Azevedo,Alcinei Mistico; Maluf,Wilson Roberto; Gomes,Luiz Antonio Augusto. |
| The objective of this study was to evaluate sweet potato clones for resistance to root-knot nematode, Meloidogyne incognita races 1 and 3. For each nematode physiological race, a greenhouse experiment was set up in a randomized block experimental design with three replications and six plants per plot. Fifty-eight sweet potato clones from the UFVJM germplasm bank were evaluated, plus five commercial cultivars (Brazlândia Rosada, Brazlândia Branca, Palmas, Princesa and Coquinho), plus the cv. Santa Clara tomato (susceptible to Meloidogyne spp.). Stems were planted in 72-cell expanded polystyrene trays, filled with commercial substrate and inoculated with the pathogen thirty days after planting. Forty-five days after inoculation, the eggs were extracted,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ipomoea batatas; Root-knot nematode; Breeding; Pathogen; Reproduction factor; Reproduction index. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052015000300291 |
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| Azevedo,Alcinei Mistico; Andrade Júnior,Valter Carvalho de; Pedrosa,Carlos Enrrik; Oliveira,Celso Mattes de; Dornas,Marcus Flavius Silva; Cruz,Cosme Damião; Valadares,Nermy Ribeiro. |
| The efficiency of artificial neural networks (ANN) to model complex problems may enable the prediction of characteristics that are hard to measure, providing better results than the traditional indirect selection. Thus, this study aimed to investigate the potential of using artificial neural networks (ANN) for indirect selection against early flowering in lettuce, identify the influence of genotype by environment interaction in this strategy and compare your results with the traditional indirect selection. The number of days to anthesis were used as the desired output and the information of six characteristics (fresh weight of shoots, mass of marketable fresh matter of shoots, commercial dry matter of shoots, average diameter of the head, head... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lactuca sativa; Multi-layer-perceptron; Gain selection; Plant breeding; Computational intelligence. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052015000400387 |
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| Andrade,Marcela Carvalho; Silva,Alex Antônio da; Conrado,Thiago Vicenzi; Maluf,Wilson Roberto; Andrade,Thiago Matos; Oliveira,Celso Mattes de. |
| Given the growing importance of the saladette fresh tomato market in Brazil, the objective of this paper was to assess the combining abilities of lines potentially useful as parents of hybridsin this class. The experiment consisted of28 genotypes, 18 hybrids from a partial diallel crossobtained from crossing two groups of tomato lines (Group I, with 9 parents, and Group II, with 2 parents), 8 F1 experimental hybrids, and 2 commercial checks. Traits evaluated were total yield, mean fruit mass, fruit shelf life, shape and percentsoluble solids. Additive genetic effects were generally more important than non-additive effects for all traits evaluated. The TOM-542 and TOM-734 lines, from group I, and the TOM-720 line, from group II, presented high general... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Solanum lycopersicum; Saladette tomatoes; Partial diallel. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052014000300004 |
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| Oliveira,Celso Mattes de; Andrade Júnior,Valter Carvalho de; Maluf,Wilson Roberto; Neiva,Irã Pinheiro; Maciel,Gabriel Mascarenhas. |
| We examined the resistance of improved tomato strains rich in 2-tridecanone (2-TD), zingiberene (ZGB) and acyl sugars (AA) to the tomato moth, Tuta absoluta. We also studied whether selection for strains with higher densities of glandular trichomes, and thus presumably strains with higher concentrations of 2-tridecanone, was effective in promoting greater resistance to the moth. The TOM-584 and TOM-679 strains were used as susceptible controls, which have normal concentrations of the three allelochemicals. The improved strain TOM-687, which has a high AA content, has a widely documented resistance and was used as a standard resistant strain. The wild strain PI134417, which is resistant by means of its high 2-TD content, was also used as a standard... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Solanum lycopersicum; Genotypes; Breeding; Indirect selection. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542012000100006 |
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