Genetic progress over twenty-three years of irrigated rice breeding in southeastern Brazil

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dc.creatorAntônio Carlos da Silva
dc.creatorVinicius Quintão Carneiro
dc.creatorIara Gonçalves dos Santos
dc.creatorRenato Domiciano Silva Rosado
dc.creatorCosme Damião Cruz
dc.creatorPlínio César Soares
dc.date2021
dc.date.accessioned2026-07-07T03:55:35Z
dc.descriptionThe importance of rice (Oryza sativa) is indisputable this cereal is the staple food for half of the global population. Genetic progress estimation allows evaluation of the effectiveness of genetic improvement of crops and helps in the planning of breeding programs. This paper aims to estimate the genetic yield progress made by the program in the state of Minas Gerais, Brazil, which is run by the Epamig/UFV/Embrapa consortium. A total of 210 lines were evaluated by value for cultivation and use testing that was conducted in the municipalities of Janaúba, Leopoldina, and Lambari, from 1993 to 2016. Based on Vencovsky’s (1986) method, the genetic gains in Lambari, Janaúba, and Leopoldina were 1.46, 0.14, and 0.11%, respectively. The gain in Leopoldina was considered very low during the evaluated period. According to Breseghello’s (1998) method, the annual average genetic gain was 0.23 and 0.04% in Lambari and Janaúba, respectively. In Leopoldina, a yield gain of - 2.37% per year was observed for the evaluation period from 1994 to 1999, and a yield gain of 0.1% per year was observed from 2000 to 2016. These results can be explained by the focus on quality as a strategy for the breeding program in Minas Gerais State in the 1990s. Vencovsky’s (1986) and Breseghello’s (1998) methods were able to quantify yield gains and demonstrate the dynamics of the irrigated rice genetic improvement program in Minas Gerais State.
dc.formatapplication/pdf
dc.identifier1679-9275
dc.identifierhttps://www.redalyc.org/articulo.oa?id=303067924012
dc.identifierhttps://www.redalyc.org/journal/3030/303067924012/
dc.identifierhttps://www.redalyc.org/journal/3030/303067924012/html/
dc.identifierhttps://www.redalyc.org/journal/3030/303067924012/303067924012.epub
dc.identifierhttps://www.redalyc.org/journal/3030/303067924012/movil
dc.identifier10.4025/actasciagron.v43i1.45767
dc.identifier.urihttp://hdl.handle.net/123456789/447654
dc.languageen
dc.publisherUniversidade Estadual de Maringá
dc.relationhttp://www.redalyc.org/revista.oa?id=3030
dc.rightsActa Scientiarum. Agronomy
dc.sourceActa Scientiarum. Agronomy (Brasil) Vol.43
dc.subjectAgrociencias
dc.titleGenetic progress over twenty-three years of irrigated rice breeding in southeastern Brazil
dc.typeartículo científico

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