2017
DOI: 10.18227/1982-8470ragro.v11i2.3642
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Divergência genética entre genótipos de cenoura através de caracteres agronômicos

Abstract: Resumo: O objetivo deste trabalho foi quantificar a divergência genética entre 20 genótipos de cenoura com base em testes de agrupamento para caracteres agronômicos. O experimento foi conduzido em Brasília -DF, entre março e julho de 2013. Foram avaliados 20 genótipos de cenoura em experimento em blocos ao acaso com quatro repetições. A parcela experimental foi constituída de um canteiro com 2 x 1 m de comprimento e largura, respectivamente; o plantio foi realizado em linhas transversais ao canteiro, em espaça… Show more

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Cited by 8 publications
(10 citation statements)
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“…However, gains similar to this study for CRM were obtained by Carvalho et al (2017), selecting three best populations among 11 evaluated carrot genotypes; in this case, possibly by the highest proportion of genetic variance over phenotypic variance showing heritability coefficient of 74% and 86% accuracy of selection, besides low coefficient of experimantal variation, 14.17%. Thus, it was estimated that gains under selection are varied, depending on experimental accuracy resulting from genetic variability present among genotypes under selection.…”
Section: Resultssupporting
confidence: 79%
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“…However, gains similar to this study for CRM were obtained by Carvalho et al (2017), selecting three best populations among 11 evaluated carrot genotypes; in this case, possibly by the highest proportion of genetic variance over phenotypic variance showing heritability coefficient of 74% and 86% accuracy of selection, besides low coefficient of experimantal variation, 14.17%. Thus, it was estimated that gains under selection are varied, depending on experimental accuracy resulting from genetic variability present among genotypes under selection.…”
Section: Resultssupporting
confidence: 79%
“…The coefficients of experimental variation ranged from 5.37% for SLB to 25.83% for NCR. These values are suitable for experiments with carrots for Brazilian conditions (Carvalho et al, 2017;Oliveira, et al, 2008). CVg/ CVe ratio, measured to show if a trait has favorable or unfavorable condition for selection (Cruz et al, 2012), ranged from 0.26 for NTR to 0.88 for CRM.…”
Section: Resultsmentioning
confidence: 99%
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“…O consumo mundial de cenoura é de aproximadamente 4,29 kg por pessoa ao ano, sendo uma importante fonte de alimento e nutrição (FREITAS et al, 2009). No Brasil a cenoura é de grande relevância para o setor hortícola, ocupando a quinta posição entre as hortaliças com maior participação na produção do país (CARVALHO et al, 2017).…”
Section: Introductionunclassified
“…A variabilidade genética entre os genótipos é fundamental para que seja possível separá-los em grupos contrastantes (CARVALHO et. al., 2017 A existência de variabilidade genética entre linhagens de soja tem sido observada por outros autores (BARROS et al, 2016;FERREIRA JÚNIOR et al, 2015).…”
Section: Resultsunclassified