2010
DOI: 10.1590/s0006-87052010000400007
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Variabilidade genética para características agronômicas superiores em cruzamentos biparentais de aveia preta

Abstract: resumo A aveia preta no Brasil tem apresentado um forte incremento em área cultivada, principalmente com o advento da semeadura direta, rotação de culturas e adoção de sistemas agropecuários. Mesmo com estas características existem poucos trabalhos de pesquisa voltados para esta cultura, especialmente quanto a caracteres de importância agronômica e a identificação de genótipos adaptados às necessidades do produtor agrícola. Diante disto, o objetivo do trabalho foi avaliar caracteres relacionados à produção de … Show more

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Cited by 4 publications
(3 citation statements)
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“…From these results there is evidence that direct selection for these traits reveals favorable conditions in terms of immediate genetic gain for the next crop cycle. According to Silveira et al (2010) results with a high heritability magnitude result from genetic variability for the traits assessed. The CVg/CVe ratio presented higher values than the unit for all the traits, that is, 1.92 (GY), 2.41 (PH) and 4.12 (DEM), indicating that direct selection for these traits may be promising in obtaining superior genotypes.…”
Section: Resultsmentioning
confidence: 99%
“…From these results there is evidence that direct selection for these traits reveals favorable conditions in terms of immediate genetic gain for the next crop cycle. According to Silveira et al (2010) results with a high heritability magnitude result from genetic variability for the traits assessed. The CVg/CVe ratio presented higher values than the unit for all the traits, that is, 1.92 (GY), 2.41 (PH) and 4.12 (DEM), indicating that direct selection for these traits may be promising in obtaining superior genotypes.…”
Section: Resultsmentioning
confidence: 99%
“…For this reason, producers basically use the seeds they saved, over several generations. The genetic identity of this seed is unknown and the performance with regard to growth cycle, plant height, dry matter yield and disease resistance is irregular (Silveira et al 2010).…”
Section: Introductionmentioning
confidence: 99%
“…Due to the little information related to the genetic improvement of black oats, for the development of new genotypes, and biometric strategies that facilitate the selection process (Silveira et al 2010), the use of multicharacter selection tools provides the identification of complex characteristics, being able to consider components the selection of characters of the components of yield of the oats, that present indirect improvement in the indicators of physiological quality of the seeds. These methods allow for more homogeneity, minimal losses, assignment of multiple selection strategies and rapid gains during breeding and seed production (Pelegrin et al 2017;Sponchiado 2018;Szareski et al 2018;Carvalho et al 2019;Szareski et al 2019;Corazza et al 2020).…”
Section: Introductionmentioning
confidence: 99%