Stability and adaptability of popcorn genotypes in the State of Rio de Janeiro, Brazil

Gf, Pena; At, do Amaral; Ls, Gonçalves; Ls, Candido; Vittorazzi, Cássio; Ribeiro, R. M.; Freitas, Suely Pereira

doi:10.4238/2012.august.31.1

Cited by 14 publications

(13 citation statements)

References 25 publications

(50 reference statements)

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“…For this analysis, all statistics were classified in descending order (Mekbib, 2003;Silva and Duarte, 2006;Cargnelluti Filho et al, 2007;Mohammadi and Amri, 2008;Scapim et al, 2010;Vilela et al, 2011;Pena et al, 2012).…”

Section: Methodsmentioning

confidence: 99%

Stability and adaptability of grain sorghum hybrids in the off-season

Filho¹,

Tardin²,

Daher³

et al. 2014

Genet. Mol. Res.

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ABSTRACT. We analyzed productivity data obtained from experiments on grain sorghum conducted in 7 locations of its cultivation in Brazil. A total of 25 hybrids were analyzed, of which 22 were pre-commercial and 3 were cultivars. The Wricke and Purchase et al. methods were highly consistent in identifying individuals with low contributions to genotype x environment interactions. The Lin and Binns method proved to be easily applicable and interpretable but it was not efficient in detecting individuals with specific adaptations. An additive main effect and multiplicative interaction (AMMI) model indicated the suitability of cultivar 1G282 for the cities of Guaíra, Sete Lagoas, and Vilhena, and hybrids 0307087 and 0307091 for the southeast of Goiás. The associations of the Eberhart and Russell method with AMMI indicated that 0307071, 0307131, 0307511, 7627Grain sorghum hybrids stability and adaptability ©FUNPEC-RP www.funpecrp.com.br Genetics and Molecular Research 13 (3): 7626-7635 (2014) and 0307651 showed adaptability to favorable environments. Hybrid 0009061 stood out as the most adaptable and stable cultivar.

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Section: Methodsmentioning

confidence: 99%

Stability and adaptability of grain sorghum hybrids in the off-season

Filho¹,

Tardin²,

Daher³

et al. 2014

Genet. Mol. Res.

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“…No entanto, sua área de plantio comercial é insuficiente para atender o mercado nacional (Moterle et al, 2011;Pena et al, 2012;Ribeiro et al, 2012;Vittorazzi et al, 2013).…”

Section: Introductionunclassified

Ganho genético avaliado com índices de seleção e com REML/Blup em milho-pipoca

Freitas

Amaral

Pena

et al. 2013

Pesq. agropec. bras.

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Resumo -O objetivo deste trabalho foi comparar quatro índices de seleção e o método REML/Blup na avaliação de ganhos genéticos preditos das características de interesse ao programa de melhoramento do milho-pipoca UENF 14. Foram avaliadas 200 progênies de irmãos-completos, em uma safra, em dois ambientes (regiões Norte e Noroeste do Estado do Rio de Janeiro), com duas repetições, o que totalizou 800 observações. Avaliaram-se as características altura média de plantas, altura média de inserção da primeira espiga, estande final, tombamento, diâmetro de colmo, prolificidade, rendimento e capacidade de expansão dos grãos. Entre os índices de seleção testados, o de Mulamba & Mock proporcionou os melhores resultados para a seleção das progênies de irmãos-completos. O método REML/Blup mostrou-se muito eficiente, tendo selecionado progênies com desempenhos relativos elevados e com ganhos genéticos preditos melhores que os dos índices de seleção testados. As progênies selecionadas com uso do método REML/Blup, para maior rendimento de grãos, não são as mesmas selecionadas para maior capacidade de expansão. O índice de Mulamba & Mock e o método REML/Blup proporcionam os melhores ganhos preditos para a população UENF 14.Termos para indexação: Zea mays, correlação genética, modelos mistos, seleção recorrente, seleção simultânea. Genetic gain evaluated with selection indices and with REML/Blup in popcornAbstract -The objective of this work was to compare four selection indices and the REML/Blup method in the evaluation of the predicted genetic gains for the characteristics of interest to the breeding program of the UENF 14 popcorn. Two hundred full-sib progenies were evaluated in one season, in two locations (North and Northwest Regions of the state of Rio de Janeiro, Brazil), with two replicates, totaling 800 observations. The characteristics evaluated were average plant height, average height of first ear insertion, final stand, tipping, stem diameter, prolificacy, grain yield and popping expansion. Among the selection indices tested, Mulamba & Mock's provided the best results for selection of full-sib progenies. The REML/Blup method proved to be very efficient, selecting progenies with high relative performance and better predicted genetic gains than those of the selection indices tested. The progenies selected using the REML/Blup method, for highest grain yield, are not the same as those selected for higher popping expansion. The Mulamba & Mock index and the REML/ Blup method provide the best predicted gains for the UENF 14 population.

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“…Its final product has widespread popular acceptance and significantly drives the informal economy. There has been a steady increase in the production and consumption of popcorn as a result of the improvement and popularization of electric devices and microwave ovens for popping, and popcorn enjoys a presence in diverse food sector businesses in large and small towns across the country (Moterle et al, 2011;Pena et al, 2012;Ribeiro et al, 2012;Vittorazzi et al, 2013).…”

Section: Introductionmentioning

confidence: 99%