2012
DOI: 10.1590/s0034-737x2012000200012
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Dissimilaridade genética e análise de trilha de cultivares de soja avaliada por meio de descritores quantitativos

Abstract: Genetic diversity and path analysis of soybeans cultivars evaluated by means of quantitative descriptorsIn addition to the evaluations among genotypes, the use of multivariate techniques enables to restrict errors, mainly concerning genetic diversity, and therefore to predict combinations with greater heterotic effect, and the greater possibility of recovery of superior genotypes. The objective of this study was to evaluate the genetic divergence between 18 soybean cultivars based on six morphological characte… Show more

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Cited by 27 publications
(35 citation statements)
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References 12 publications
(10 reference statements)
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“…Rigon et al (2012), in a study with 18 soybean cultivars found a cophenetic correlation of 0,75 being, in this way higher than the one obtained in this study. The cophenetic correlation estimates obtained in the method of the furthest neighbor were 0,58 and 0,77 respectively to the Mahalanobis and Euclidean distances (Table 3).…”
Section: Resultscontrasting
confidence: 77%
See 1 more Smart Citation
“…Rigon et al (2012), in a study with 18 soybean cultivars found a cophenetic correlation of 0,75 being, in this way higher than the one obtained in this study. The cophenetic correlation estimates obtained in the method of the furthest neighbor were 0,58 and 0,77 respectively to the Mahalanobis and Euclidean distances (Table 3).…”
Section: Resultscontrasting
confidence: 77%
“…On the other hand, the BRSGO 7560 and UFUS 27 genotypes were considered the most divergent by presenting a bigger difference (335,7). Rigon et al (2012), analyzed the genetic divergence in 18 soybean cultivars and obtained values between 0,008 to 0,53. Almeida et al (2011), worked with 11 soybean cultivars and observed an elevated magnitude of the Mahalanobis distance which was from 2,65 to 374,06 indicating a high genetic variability according to what was found in this study.…”
Section: Resultsmentioning
confidence: 99%
“…Genótipos precoces são desenvolvidos, principalmente, para atender áreas de renovação de canaviais (BIZARI et al, 2014) e também são utilizados, para atender áreas de safrinha em regiões onde a 2ª safra é tradicional. (MALIK et al, 2007;RIGON et al, 2012). É importante ressaltar que entre os genótipos mais divergentes tem-se JAB 41 e JAB 11, que apresentaram alto rendimento de grãos e JAB 17 que apresentou ciclo reduzido, sendo que estes caracteres constituem o grupo de maior importância para a cultura da soja.…”
Section: Resultsunclassified
“…A análise multivariada tem sido uma ferramenta muito utilizada em estudos sobre divergência genética, em várias culturas, como milho (DOTTO et al, 2010), girassol (AMORIM et al, 2007;VOGT;BALBINOT JÚNIOR;SOUZA, 2010) e soja (ALMEIDA; PELUZIO; AFFÉRRI, 2011;AZEVEDO et al, 2004;PELUZIO et al, 2010;RIGON et al, 2012;SANTOS et al, 2011).…”
Section: Introductionunclassified
“…Os avanços tecnológicos da agricultura colocam no mercado cultivares cada vez mais produtivas, mais adaptadas e com materiais genéticos de alto potencial produtivo (Torres et al, 2015), o que influencia no aumento do rendimento (Rigon et al, 2012). Estas tecnologias podem contribuir em mais de 50% no aumento da produtividade no cultivo de grãos, sendo um benefício que o produtor pode deixar de aproveitar quando utiliza sementes próprias, de má qualidade, produzidas fora dos padrões exigidos, as popularmente chamadas sementes crioulas ou sementes "salvas" (Tozzo e Peske, 2007).…”
Section: Introductionunclassified