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Agronomic performance and genetic dissimilarity among cherry tomato genotypes Horticultura Brasileira
Maciel,Gabriel M; Finzi,Rafael R; Carvalho,Fábio J; Marquez,Guilherme R; Clemente,Andressa A.
ABSTRACT The genotypes evaluation in a germplasm bank is essential to determine their commercial or usefulness, as potential parents, in a breeding program. We aimed to detect the genetic diversity of 42 tomato genotypes of cherry type, belonging to the germplasm bank of the Federal University of Uberlândia and, also evaluate their behavior. The experiment was conducted in a greenhouse in randomized block design with 42 treatments and two replications. Ten quantitative traits of agronomic importance were evaluated. The genetic divergence was obtained by multivariate analysis, using the Mahalanobis distance with different clustering methods (UPGMA and Tocher). The hybrids performance was compared by Scott-Knott (p= 0.05) and Dunnett’s test (p= 0.05). UPGMA...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Solanum lycopersicum; Variability; Grape tomato.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362018000200167
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Agronomic potential and selection of okra hybrids to obtain potential genitors Horticultura Brasileira
Maciel,Gabriel M; Finzi,Rafael R; Marra,Alexandre William C; Carvalho,Fábio J; Nogueira,Ana Paula O.
ABSTRACT Evaluation of pre-commercial hybrids in a germplasm bank is essential for determining its commercial potential or its utility as a potential genitor in a breeding program. The objective of this study was to determine genetic divergence and per se behavior of 47 pre-commercial hybrids from okra germplasm bank of the Universidade Federal de Uberlândia. Precocity index (%), number of fruits (fruits per plant), average fruit mass (g) and productivity (g per plant) were evaluated. Analysis of genetic divergence was performed by multivariate analysis using Mahalanobis distance with different clustering methods (UPGMA and canonical analysis). The performance of hybrids was compared by Scott-Knott (p= 0.05). A significant genetic variability among okra...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Abelmoschus esculentus; Genetic variability; Heterosis.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362018000100112
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Heterosis in okra hybrids obtained by hybridization of two methods: traditional and experimental Horticultura Brasileira
Maciel,Gabriel M; Luz,José MQ; Campos,Saulo FB; Finzi,Rafael R; Azevedo,Breno NR.
ABSTRACT High heterosis values can be obtained using hybrid okra seeds. However, despite high heterotic values, it is very difficult to produce hybrid okra seeds. The objective of this study was to evaluate an experimental methodology of hybridization. Two different methods of hybridization were used: traditional manual hybridization with complete emasculation followed by hand pollination (artificial) and, an experimental methodology, performing manual hybridization with incomplete emasculation followed by entomophilous natural pollination between two inbred lines (UFU-QB-040D and UFU-QB-107G).These inbred lines were obtained from three selection cycles. Three hybrid types were obtained from the two hybridization methods: F1 THM(UFU-QB-040D x UFU-QB-107G),...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Abelmoschus esculentus; Hybridization; Heterosis; Pollination..
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362017000100119
Registros recuperados: 3
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