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Genotype-environment interaction and phenotypic stability for girth growth and rubber yield of Hevea clones in São Paulo State, Brazil Genet. Mol. Biol.
Gonçalves,Paulo de Souza; Bortoletto,Nelson; Martins,Antonio Lúcio Mello; Costa,Reginaldo Brito da; Gallo,Paulo Boller.
The best-yielding, best vigour and most stable Hevea clones are identified by growing clones in different environments. However, research on the stability in Hevea brasiliensis (Willd. Adr. ex Juss.) Muell.-Arg. is scarce. The objectives of this work were to assess genotype-environment interaction and determine stable genotypes. Stability analysis were performed on results for girth growth and rubber yield of seven clones from five comparative trials conducted over 10 years (girth growth) and four years (rubber yield) in São Paulo State, Brazil. Stability was estimated using the Eberhart and Russell (1966) method. Year by location and location variability were the dominant sources of interactions. The stability analysis identified GT 1 and IAN 873 as the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Hevea brasiliensis; Rubber tree; Coefficient of determination; Stability parameters.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572003000400007
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Genotypic stabilization of agronomic traits in Panicum maximum (Jacq.) hybrids. Repositório Alice
BRAZ, T. G. dos S.; FONSECA, D. M. da; JANK, L.; CRUZ, C. D.; MARTUSCELLO, J. A..
The objective of this study was to evaluate the genotypic stability of agronomic traits in hybrids of Panicum maximum. Hybrids originating from the crosses between two sexual parents and cultivars Mombasa and Tanzania were evaluated in an incomplete-block design. Evaluated traits were total dry matter, leaf dry matter, stem dry matter, percentage of leaves, and leaf:stem ratio. These traits were evaluated in six harvests. Overall, higher repeatability was observed for the traits total dry matter and leaf dry matter, especially when harvests 4, 5, and 6, occurring in spring and summer, were evaluated. The leaf dry matter was the trait that provided the greatest repeatability and determination. The repeatability of stem dry matter, percentage of leaves, and...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Coefficient of determination; Repeated measures; Selection efficiency; Coeficiente de determinação; Medidas repetidas; Eficiência de seleção; Forragem; Forage.
Ano: 2015 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1088047
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Genotypic stabilization of agronomic traits in Panicum maximum (Jacq.) hybrids R. Bras. Zootec.
Braz,Thiago Gomes dos Santos; Fonseca,Dilermando Miranda da; Jank,Liana; Cruz,Cosme Damião; Martuscello,Janaina Azevedo.
The objective of this study was to evaluate the genotypic stability of agronomic traits in hybrids of Panicum maximum. Hybrids originating from the crosses between two sexual parents and cultivars Mombasa and Tanzania were evaluated in an incomplete-block design. Evaluated traits were total dry matter, leaf dry matter, stem dry matter, percentage of leaves, and leaf:stem ratio. These traits were evaluated in six harvests. Overall, higher repeatability was observed for the traits total dry matter and leaf dry matter, especially when harvests 4, 5, and 6, occurring in spring and summer, were evaluated. The leaf dry matter was the trait that provided the greatest repeatability and determination. The repeatability of stem dry matter, percentage of leaves, and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Coefficient of determination; Forage; Repeated measures; Selection efficiency.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982015001100377
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Repeatability of fruit traits from two Hancornia speciosa populations from the core region of the Brazilian Cerrado PAB
Fonseca,Carlos Eduardo Lazarini da; Morais,Fernanda Monteiro de; Gonçalves,Helenice Moura; Aquino,Fabiana de Gois; Rocha,Fernando Souza.
Abstract: The objective of this work was to estimate the repeatability coefficients of mangaba (Hancornia speciosa) fruit traits, in order to define the number of fruit needed for an accurate selection of superior genotypes, as well as to conjecture about the nature of the phenotypic variation of these traits. Evaluations were performed for 160 fruit of 16 genotypes from two native H. speciosa populations of Goiás Velho and Padre Bernardo, in the state of Goiás, Brazil. Repeatability was estimated by the analysis of variance, principal component analyses based on covariance and on the correlation matrix, and structural analysis based on the correlation matrix. Repeatability estimates for fruit weight, diameter, and length, as well as seed number and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Coefficient of determination; Mangaba; Repeated measures; Savannah; Selection efficiency.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000600710
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