Phenotypic stability of hybrids of Gália melon in Rio Grande do Norte state, Brazil

Nunes, Glauber H. S.; Júnior, Haroldo Santos; Grangeiro, Leílson Costa; Neto, Francisco Bezerra; Dias, Carlos Tadeu Santos; Dantas, Mara Suyane Marques

doi:10.1590/s0001-37652011005000034

Cited by 12 publications

(17 citation statements)

References 21 publications

(25 reference statements)

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“…Predominance of the complex portion has also been reported in several previous studies involving traits related to melon yield and quality (Nunes et al, 2006). However, Nunes et al (2011b) observed a prevalence of the simple portion of the interaction for yield and soluble solids content. It is likely that such differences are due to the different genotypes and environmental conditions analyzed during these studies.…”

Section: Resultssupporting

confidence: 66%

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<b>Interference of genotype-by-environment interaction in the selection of inbred lines of yellow melon in an agricultural center in Mossoró-Assu, Brazil

et al. 2016

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ABSTRACT. The aims of this study were to i) identify the influence of the GxE interaction in the selection of inbred lines of melon, and ii) test the efficiency of different indexes in the selection of inbred lines with a higher yield potential and better quality fruit. For these purposes, 98 inbred lines of yellow melon and two commercial controls, Vereda and AF-646, were evaluated in a randomized block design with two replications, at the conditions present in Mossoró and Baraúna. Analyses of the following traits were performed: fruit yield, mean fruit weight, pulp thickness, pulp firmness and soluble solids content. A complex portion of the GxE interaction was predominantly detected for all traits. The recommendation in this case is to promote selection in each environment. Alternatively, selection based on the average behavior of the inbred lines is the strategy that generates the greatest gains, approaching those obtained through direct selection in each specific environment. The selection indexes aimed at reducing the expression of all traits proved to be best for both locations. The index constructed for Baraúna allowed the selection of a greater number of inbred lines with a higher yield potential and better quality fruit and, thus, greater efficiency.Keywords: Cucumis melo L, segregant populations, genetic gains, inbred lines extraction, hybrids, selection indexes.Interferência da interação genótipo por ambiente na seleção de linhagens de melão amarelo no agropolo Mossoró-Assu, Brasil RESUMO. Objetivou-se com esse estudo: i) identificar a interferência da interação GxE no processo de seleção de linhagens de melão e; ii) testar a eficiência de índices na seleção de linhagens com maior potencial produtivo e melhor qualidade de fruto. Para isto, avaliaram-se 98 linhagens de melão amarelo e duas testemunhas, Vereda e AF-646, em blocos casualizados com duas repetições, em Mossoró e Baraúna, localizadas no Agropolo produtor desta hortaliça. Avaliaram-se os caracteres produtividade de frutos, massa média de frutos, espessura de polpa, firmeza de polpa e sólidos solúveis. Detectou-se uma predominância da porção complexa na interação GxE em todos os caracteres. A recomendação, neste caso, é promover a seleção em cada ambiente. Alternativamente, a seleção baseada no comportamento médio das linhagens é a estratégia que gera ganhos mais próximos àqueles obtidos pela seleção direta em cada ambiente específico. Os índices de seleção, com o propósito de reduzir a expressão de todos os caracteres, se mostraram melhores para ambas as localidades. Àquele construído para Baraúna permitiu selecionar um maior número de linhagens com elevado potencial produtivo e com melhores qualidades de fruto, sendo assim, mais eficiente. Palavras-chave:Cucumis melo L, populações segregantes, ganho genético, extração de linhagens, híbridos, índices de seleção.

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Section: Resultssupporting

confidence: 66%

“…The interference from the environment is mainly due to soil conditions and climate. As a result, a pronounced effect was expected, as reported in studies involving the melon crop in the semiarid Brazilian region (Nunes, Andrade Neto, Costa Filho, & Melo, 2011a;Nunes et al, 2011b;Silva, Nunes, Costa, Aragão, & Maia, 2011).…”

Section: Resultssupporting

confidence: 60%

<b>Interference of genotype-by-environment interaction in the selection of inbred lines of yellow melon in an agricultural center in Mossoró-Assu, Brazil

et al. 2016

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“…In this case, the interaction is capitalized, increasing the phenotypic value of the trait. Silva et al (2011) observed predominance of the complex part of the families of Gália melon x environment interaction, but Nunes et al (2011) observed prevalence of the simple component of the interaction when they evaluated Gália melon hybrids in 12 environment of Rio Grande do Norte. In addition, Nunes et al (2006) observed a large variation among genotypes, environments, and interaction, with superiority of the complex component in the yield and soluble solids traits of Canary melon hybrids.…”

Section: Family X Environment Interactionmentioning

confidence: 92%

Genotype x environment interaction of melon families based on fruit quality traits

Aragão

Nunes

Queiróz

2015

Crop Breed. Appl. Biotechnol.

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“…Several methods for the study of adaptability and production stability of genotypes were proposed (NUNES et al, 2011b), such as AMMI (Additive Main effects and Multiplicative Interaction) and GGE Biplot (Genotype main effects and Genotype-Environment interaction), which explain the main effects of the genotype-environment interaction (SILVA et al, 2011). Mixed models have been used in studies of several subjects related to plant breeding, including genotype-environment interaction.…”

Section: Introductionmentioning

confidence: 99%

Adaptability and Phenotypic Stability of Lettuce Cultivars in a Semiarid Region

et al. 2019

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Studies on lettuce genotypes growing in different environments and planting seasons are important for this crop because its productive potential is greatly affected by environmental conditions. The mixed model methodology (REML/BLUP) have been used to evaluate the effects of the genotype-environment interaction on crops. Thus, the objective of the present work was to estimate parameters of adaptability and the phenotypic stability in lettuce cultivars grown in a semiarid region of Brazil, using a mixed model. Twelve lettuce cultivars from the Americana (Angelina, Amélia, and Tainá), Crespa (Scarlet, Vera, Isabela, and Vanda), Mimosa (Mila, Mimosa, and Lavínia), and Lisa (Elisa and Regiane) groups were evaluated. The experiments were conducted in a randomized complete block design, with four replications. The genetic parameters were estimated by the REML/BLUP method; and the simultaneous selection of productivity, stability, and adaptability of the genotypes was based on harmonic means of relative performances of predicted genotypic values (HMRPPGV). The Amélia, Angelina, and Tainá cultivars stood out for yield. The Regiane and Elisa cultivars presented significant responses in yield and number of leaves and are the most suitable for growing in the environmental conditions of Mossoró, RN, Brazil. The Crespa and Mimosa groups presented no stability and adaptability to the environmental conditions in which the experiments were conducted. More genotypes of all lettuce groups should be evaluated, and breeding programs should be developed to obtain genotypes with higher productivity, quality, and resistance to heat for semiarid regions. ADAPTABILIDADE E ESTABILIDADE FENOTÍPICA DE CULTIVARES DE ALFACE EM REGIÃO DE CLIMA SEMIÁRIDORESUMO -O estudo de genótipos, em diferentes ambientes ou épocas de cultivo, tem grande importância para a cultura da alface, cuja expressão do potencial produtivo é influenciada pelas condições ambientais. Deste modo, a aplicação da metodologia de modelos mistos (REML/BLUP) tem sido utilizada para avaliar os efeitos da interação genótipo x ambiente. Assim, o objetivo do presente trabalho foi estimar os parâmetros de adaptabilidade e estabilidade fenotípica que estão relacionados a produção de cultivares de alface em região de clima semiárido utilizando modelo misto. Avaliaram-se doze cultivares de alface dos grupos Americana (quatro repetições. Os parâmetros genéticos foram estimados pela metodologia REML/BLUP e a seleção simultânea da produtividade, estabilidade e adaptabilidade dos genótipos, baseou-se no método da média harmônica da performance relativa dos valores genotípicos preditos (MHPRVG). As cultivares Amélia, Angelina e Tainá sobressaíram-se para a produtividade. As cultivares Regiane e Elisa foram responsivas para o número de folhas e produtividade, sendo as mais indicadas para o cultivo nas condições de Mossoró. Os grupos Crespa e Mimosa não foram adaptados e estáveis nas condições ambientais em que foram conduzidos os ensaios. Recomenda-se que mais genótipos de todos os grupos de ...

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Phenotypic stability of hybrids of Gália melon in Rio Grande do Norte state, Brazil

Cited by 12 publications

References 21 publications

<b>Interference of genotype-by-environment interaction in the selection of inbred lines of yellow melon in an agricultural center in Mossoró-Assu, Brazil

<b>Interference of genotype-by-environment interaction in the selection of inbred lines of yellow melon in an agricultural center in Mossoró-Assu, Brazil

Genotype x environment interaction of melon families based on fruit quality traits

Adaptability and Phenotypic Stability of Lettuce Cultivars in a Semiarid Region

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