Adaptabilidade e estabilidade de genótipos de soja por meio de métodos uni e multivariado

Barros, Hélio Bandeira; Sediyama, Tuneo; Melo, Aurélio Vaz de; Fidélis, Rodrigo Ribeiro; Capone, Aristoteles

doi:10.20873/jbb.uft.cemaf.v3n2.barros

Cited by 19 publications

(20 citation statements)

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“…Os programas brasileiros de melhoramento de soja Glycine max desde a década de 70, procuraram desenvolver genótipos de soja com período juvenil longo, adaptados às regiões de baixas latitudes, característica esta que permitiu a expansão da cultura da soja à região central do país e buscando sempre cultivares mais produtivos (PELUZIO et al, 2012;BARROS et al, 2012).…”

Section: Introductionunclassified

Eficiência ambiental e divergência genética de genótipos de soja na região central do Tocantins

Daronch

Pelúzio

Afférri

et al. 2019

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Estudos sobre a divergência genética e de eficiência de resposta dos genótipos a diferentes ambientes são úteis em programas de melhoramento. Neste sentido, no ano agrícola 2013/14, foram realizados dois ensaios em Palmas-TO com dezessete genótipos de soja, sendo dez cultivares e sete linhagens. O delineamento experimental utilizado, em cada ensaio, foi de blocos casualizados com dezessete tratamentos e três repetições e as características estudadas foram: número de dias para o florescimento e para a maturação, altura de planta e da inserção da primeira vagem, número de sementes por vagem, número de vagens por planta, massa de cem sementes e produtividade de grãos. A eficiência ambiental foi avaliada através da metodologia adaptada de Fischer (1983) e a divergência genética por meio de procedimentos multivariados: distância generalizada de Mahalanobis e método de agrupamento e otimização de Tocher. Os genótipos CD 2737 RR (0,67) e TMG 1180 RR (0,57) foram os mais eficientes quanto ao estímulo ambiental. O índice de eficiência ambiental foi eficaz na identificação dos genótipos apenas para os ambientes desfavoráveis. As características número de dias para o florescimento (49%) e o número de vagens por planta (26,6%) foram as que mais contribuíram para a dissimilaridade genética. Os cruzamentos mais promissores foram 5X6-3 X TMG 1180 RR; 4X5-2 X TMG 1180 RR e 5X6-1 X TMG 1180 RR.

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Section: Introductionunclassified

Eficiência ambiental e divergência genética de genótipos de soja na região central do Tocantins

Daronch

Pelúzio

Afférri

et al. 2019

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“…The genotype ´ environment interaction is often reported for different traits in soybean (Carvalho et al, 2002a;Lima et al, 2008;Vasconcelos et al, 2010;Marques et al, 2011;Barros et al, 2012;Bueno et al, 2013;Silva et al, 2015;Soares et al, 2015) and other crop species, like barley (Hordeum vulgare L.), triticale (´Triticosecale Wittm. ex A. Camus), and wheat (Triticum aestivum L.) (Kendal, 2015;Kendal and Sener, 2015;Dogan et al, 2016;.…”

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confidence: 99%

Selection of Early Soybean Inbred Lines Using Multiple Indices

Gesteira¹,

Bruzi

Zito

et al. 2018

Crop Science

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Soybean [Glycine max (L.) Merr.] has been studied and enhanced for most of its economically important traits. Previous research has studied the association among them and the effect of the genotype × environment interaction; however, less is known about their correlation considering absolute maturity, as well as the use of multiple selection indices to study the genotype × environment interaction and select superior cultivars. Regarding this, the aim of the present study was to identify lines that associate precocity, good yield performance, and high oil and protein contents in the grains, as well as to estimate the correlation among these traits and study the effect of genotype × environment interaction using a standardized multiple selection index. Trials were conducted in two crop seasons in the state of Minas Gerais, Brazil, with 39 lines in 13 evaluation environments. The experiments were conducted in a randomized complete block design with four replications, and the grain yield, absolute maturity, and oil and protein contents in the grains were evaluated. The results indicated high experimental precision and accuracy, with significant differences among lines for all traits. High‐magnitude correlations between evaluated traits were found, highlighting the negative correlation between absolute maturity and protein content in the grains. The genotype × environment interaction was also significant, and the use of the multiple selection index was efficient to identify superior and stable inbred lines by the genotype + genotype × environment (GGE) biplot method, which explained 82.23% of the genotype × environment interaction effect. Lines 27 and 31 stood out from the others because they associated stability and good performance for all evaluated traits.

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“…Evaluation of stability by using the Annicchiarico method has been reported by several authors and in several species, such as maize (Schmildt et al 2011;Possatto Júnior et al 2017a;Silva et al 2017), canola (Lima et al 2017), and soybean (Barros et al 2012). Recommendation of phenotypes based on an analysis of stability by Annicchiarico is reliable and has results that are similar to those of other methods (Schmildt et al 2011;Barros et al 2012). On the other hand, the AMMI method has been used on onion (Oliveira et al 2016) and manioc (Morais et al 2017) populations.…”

Section: Introductionmentioning

confidence: 76%

Research Article Phenotypic stability of strawberry cultivars assessed in three environments

Gabriel¹,

Resende²,

Zeist³

et al. 2018

Genet. Mol. Res.

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We examined the agronomic performance and stability of strawberry cultivars in three environments, using the Annicchiarico and AMMI methods. Thirteen strawberry cultivars were evaluated (Aromas, Oso Grande, Dover, Sweet Charlie, Tudla, Festival, Camarosa, Monterey, Palomar, Portola, Camino Real, San Andreas and Albion), in the towns of Lavras-MG, Guarapuava-PR and Uberlândia-MG. The experimental design was blocks with randomly distributed treatments, with four replications and 18 plants per experimental unit. The total number of fruits (TNF) plant -1 , total mass of fruits (TMF) g plant -1 , number of commercial fruits (NCF) plant -1 and mass of commercial fruits (MCF) g plant -1 were evaluated. Variance analysis detected a significant effect for cultivar, environment, and cultivar x environment interaction for all the characteristics. The agronomic performance of the Dover cultivar stood out for TNF, TMF and NCF, while the Camarosa cultivar stood out for MCF. When we examined phenotypic stability in terms of yield in different cultivation environments, the Albion cultivar stood out for TMF, and Monterey and San Andreas for NFC.

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Adaptabilidade e estabilidade de genótipos de soja por meio de métodos uni e multivariado

Cited by 19 publications

References 0 publications

Eficiência ambiental e divergência genética de genótipos de soja na região central do Tocantins

Eficiência ambiental e divergência genética de genótipos de soja na região central do Tocantins

Selection of Early Soybean Inbred Lines Using Multiple Indices

Research Article Phenotypic stability of strawberry cultivars assessed in three environments

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