Maize topcrosses for yield performance by additive main effects and multiplicative interaction analysis / Selecao de topcrosses de milho para rendimento de graos por meio da analise de efeitos principals aditivos e interacao multiplicativa
The analysis of main additive effects and multiplicative interaction is commonly used in the evaluation of the genotype x environment interaction, however, its application can be used for other purposes, as it is performed in the presentresearch, which uses this technique in the selection of inbred...
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Published in: | Ciência rural Vol. 52; no. 9; p. 1 |
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Main Authors: | , , , , , |
Format: | Journal Article |
Language: | English |
Published: |
Universidade Federal de Santa Maria
01-09-2022
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Subjects: | |
Online Access: | Get full text |
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Summary: | The analysis of main additive effects and multiplicative interaction is commonly used in the evaluation of the genotype x environment interaction, however, its application can be used for other purposes, as it is performed in the presentresearch, which uses this technique in the selection of inbred lines, testers and hybrids in maize topcrosses. Thisresearch determined the effect of the inbred lines x testers interaction through the analysis of main additive effects and multiplicative interaction, verifying their efficiency in the selection of inbred lines, testers and hybrid combinations in topcrosses. The trials were carried out in the 2015/16 and 2016/17 crop seasons, with a complete block design, with three replications. Thirty [S.sub.3] maize inbred lines were evaluated in crosses with the AG8025, P30B39, MLP102, 60.H23.1 and 70.H26.1 testers forming 150 hybrids topcrosses. The trait evaluated was grain yield. The adaptability and stability of testers and inbred lines were evaluated by the methodology of analysis of main additive effects and multiplicative interaction directed to the interaction of testers x inbred lines. The 96.3 inbred line has the most homogeneous performance and the highest grain yield, considering the crossing with all testers in both environments. The 70.H26.1 tester is considered the most stable and the most recommended for topcrosses. The best specific combinations were 96.3 x 70.H26.1 and 96.3 x 60.H23.1. Key words: AMMI, inbred lines x testers interaction, partial diallel, Zea mays L. A analise dos principais efeitos aditivos e interacao multiplicativa e comumente utilizada na avaliacao da interacao genotipo x ambiente, porem, sua aplicacao pode ser estendida para outros propositos assim como realizado no presente trabalho em que utiliza esta tecnica na selecao de linhagens, testadores e hibridos em topcrosses de milho. O objetivo deste trabalho foi determinar o efeito da interacao linhagens x testadores por meio da analise dos principals efeitos aditivos e da interacao multiplicativa, verificando sua eficiencia na selecao de linhagens, testadoras e combinacoes hibridas em topcrosses. Os ensaios foram realizados nas safras 2015/16 e 2016/17, com delineamento em blocos completos, com tres repeticoes. Trinta linhagens de milho S3 foram avaliadas em cruzamentos com os testadores AG8025, P30B39, MLP102, 60.H23.1 e 70.H 26.1 formando 150 topcrosses hibridos. A caracteristica avaliada foi a produtividade de graos. A adaptabilidade e estabilidade de testadores e linhagens foram avaliadas pela metodologia de analise de efeitos aditivos principals e interacao multiplicativa direcionada a interacao testadores x linhagens. A linhagem 96.3 apresentou o desempenho mais homogeneo e o maior rendimento de graos, considerando o cruzamento com todos os testadores em ambos os ambientes. O testador 70.H26.1 e considerado o mais estavel e o mais recomendado para topcrosses. As melhores combinacoes especificas foram 96.3 x 70.H26.1 e 96.3 x 60.H23.1. Palavras-chave: AMMI, interacao linhagens x testadores, dialelo parcial, Zea mays L. |
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ISSN: | 0103-8478 |
DOI: | 10.1590/0103-8478cr20210286 |