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Multiline aiming at phenotypic stability and rice blast resistance
Castro, Douglas Goulart; Moura, Amanda Mendes de; Alves, Natália Botega; Tomé, Laís Moretti; Botelho, Flávia Barbosa Silva; Rosário Neto, Antônio; Souza, Douglas Correa de.
  • Castro, Douglas Goulart; Federal University of Lavras. Lavras. BR
  • Moura, Amanda Mendes de; Federal University of Lavras. Lavras. BR
  • Alves, Natália Botega; Federal University of Lavras. Lavras. BR
  • Tomé, Laís Moretti; Federal University of Lavras. Lavras. BR
  • Botelho, Flávia Barbosa Silva; Federal University of Lavras. Lavras. BR
  • Rosário Neto, Antônio; Federal University of Lavras. Lavras. BR
  • Souza, Douglas Correa de; Federal University of Lavras. Lavras. BR
Biosci. j. (Online) ; 38: e38100, Jan.-Dec. 2022. tab, graf
Article in English | LILACS | ID: biblio-1415856
ABSTRACT
This study aimed to verify the efficiency of multilines in reducing blast progress and their potential benefits to phenotypic stability in rice. The experiments were conducted in the 2016/17 and 2017/18 agricultural years. A randomized block design was performed with three replications, evaluating 12 lines and a multiline, which consisted of five lines from the Cultivation and Use Value (CUV) test. The multiline presented an estimated grain yield above the average of experiments of around seven bags ha-1 and superior performance in early flowering, justifying the high phenotypic stability for these characters. In this case, the line selection for composing the multiline was favorable and efficient, highlighted by a higher agronomic performance than most lines of the CUV test. The multiline is an adequate strategy to provide higher phenotypic stability and reduce blast progress in the field.
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Full text: Available Index: LILACS (Americas) Main subject: Oryza / Pyricularia grisea / Plant Breeding Type of study: Controlled clinical trial Language: English Journal: Biosci. j. (Online) Journal subject: Agricultura / Disciplinas das Ciˆncias Biol¢gicas / Pesquisa Interdisciplinar Year: 2022 Type: Article Affiliation country: Brazil Institution/Affiliation country: Federal University of Lavras/BR

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Full text: Available Index: LILACS (Americas) Main subject: Oryza / Pyricularia grisea / Plant Breeding Type of study: Controlled clinical trial Language: English Journal: Biosci. j. (Online) Journal subject: Agricultura / Disciplinas das Ciˆncias Biol¢gicas / Pesquisa Interdisciplinar Year: 2022 Type: Article Affiliation country: Brazil Institution/Affiliation country: Federal University of Lavras/BR