2017
DOI: 10.1590/0100-5405/2161
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Seleção de genótipos de arroz para integrar uma mistura varietal visando o controle da brusone

Abstract: RESUMOA brusone, causada por Magnaporthe oryzae (Herbert) Barr é uma das doenças mais importantes na cultura do arroz. Várias estratégias de manejo da doença, como o uso de genótipos resistentes têm sido utilizadas, entretanto, o grande número de raças do patógeno dificulta a obtenção de cultivares com resistência durável. Neste contexto, o uso da mistura varietal pode constituir uma estratégia viável e promissora no controle da doença. Assim, objetivou-se com este estudo avaliar a reação de cultivares de arro… Show more

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Cited by 2 publications
(3 citation statements)
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“…(2016), Morais Júnior et al. (2017) and Santos et al (2017), indicating good accuracy and reliability of the estimates. Heritability values related to cultivar resistance are commonly high, as this trait is normally controlled by few genes and easily visually selected.…”
Section: Discussionmentioning
confidence: 78%
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“…(2016), Morais Júnior et al. (2017) and Santos et al (2017), indicating good accuracy and reliability of the estimates. Heritability values related to cultivar resistance are commonly high, as this trait is normally controlled by few genes and easily visually selected.…”
Section: Discussionmentioning
confidence: 78%
“…It enables the selection of genotypes with different levels of resistance to each disease, aiming to meet the different demands of each region and enables the breeder to select lines according to the objectives of the breeding programme (Cavatte, Silva, & Souza Machado, 2018; Morais Júnior, Melo, De Morais, & Colombari Filho, 2017; Streck, Magalhães Júnior, Aguiar, et al, 2018). Moreover, for multiline constitution, this variability of resistance in the CUV test is very desirable (Santos et al., 2017). In some seasons, genetic variance values assumed negative values and were considered null (Table 2).…”
Section: Discussionmentioning
confidence: 99%
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