Adaptability and stability with multivariate definition of macroenvironments for wheat yield in Rio Grande do Sul

Szareski, Vinícius Jardel; Carvalho, Ivan Ricardo; Kehl, Kassiana; Levien, Alexandre Moscarelli; Rosa, Tiago Corazza da; Souza, Velci Queiróz de

doi:10.1590/s1678-3921.pab2021.v56.02468

Cited by 5 publications

(2 citation statements)

References 21 publications

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“…This interaction refers to how different genotypes respond variably to different environmental conditions (Cruz, Carneiro, & Regazzi, 2014;. Through multi-environment tests, it is possible to identify and select groups of environments with similar conditions, called mega-environments (Katsenios et al, 2021;Szareski et al, 2021). Therefore, one can identify genotypes that can be cultivated within these mega-environments.…”

Section: Positioning Genotypes In Mega-environmentsmentioning

confidence: 99%

“…Simultaneously with the development of genotypes tolerant to abiotic stress, the identification of environments with similar environmental conditions, known as megaenvironment assessment, improves the efficiency of genotype positioning (Katsenios et al, 2021). Studies have identified the presence of mega-environments in several cultures, as highlighted by Katsenios et al (2021), Szareski et al (2021) and Savicki et al (2023). This approach allows positioning genotypes within these mega-environments, which results in reduced costs in genetic breeding programs (Nardino et al, 2018) and provides favorable phenotypic responses.…”

Section: Introductionmentioning

confidence: 99%

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Maize genetic breeding for tolerance to abiotic stress with focus on sustainable use of environmental resources

Loro,

Carvalho,

Pradebon

et al. 2023

Agron. Sci. Biotechnol.

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This bibliographic review explored maize genetic breeding to increase tolerance to abiotic stress. The main stresses faced by the crop, such as water stress and nitrogen deficiency, and their negative impacts on grain yield were discussed. Strategies to minimize these effects were examined, focusing on the selection of tolerant genotypes and the strategic positioning of these genotypes in different growing environments. The germplasm bank and genetic diversity were highlighted as crucial resources to identify desirable traits and genes associated with resistance to abiotic stress. The selection of secondary characters, considering their heritability and correlation with characters of interest, allows maximizing the efficiency in the selection of promising genotypes in genetic breeding programs. Test environments simulating stresses, such as water stress and low nitrogen, are essential to evaluate the performance of genotypes and identify the most tolerant ones. The genetic breeding of maize for tolerance to abiotic stress promotes promising solutions to face environmental challenges and ensure the sustainability of agricultural production.

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Section: Positioning Genotypes In Mega-environmentsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Maize genetic breeding for tolerance to abiotic stress with focus on sustainable use of environmental resources

Loro,

Carvalho,

Pradebon

et al. 2023

Agron. Sci. Biotechnol.

Self Cite

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Envirotypes applied to evaluate the adaptability and stability of wheat genotypes in the tropical region in Brazil

Casagrande,

Mezzomo,

de Sousa

et al. 2024

Euphytica

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Global climate changes can dramatically impact wheat production in Brazil's Cerrado biome, considered a new wheat farming frontier. Therefore, new approaches are needed to better understand the G×E interaction in environments with high climate variations. Here, we integrate envirotyping, adaptability, and stability techniques to better understand the G×E interaction and provide new insights for the recommendation of tropical wheat genotypes that can perform well in hotter and drier environments. Thirty-six wheat genotypes were evaluated for grain yield in eight eld trials in 2018, 2019, and 2020 in the Brazilian Cerrado region. There is strong evidence that even in irrigated conditions, temperatures > 30 ºC during the booting and heading/ owering stages dramatically reduce the grain yield. Two lines, VI14774 (GY = 3800 kg ha -1 ), and VI14980 (GY = 4093 kg ha -1 ) had better performance in the hotter environment (~ 22% and ~ 32% higher than the grand mean) and are potential germplasm sources for warmer environments at the boosting and heading/ owering stages. Overall, this study provides new insights on how the environment typing can be useful to better understand the genotype-byenvironment interaction and help to breed new climate-resilient wheat cultivars for the cerrado region. In this study, the REML/BLUP and GGE Biplot methods highly correlate in terms of genotype classi cation for selection and recommendation purposes. The genotypes VI 14127, VI 14197, VI 14026, and BRS 264 are the closest to a hypothetical ideal genotype.

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New agricultural wheat frontier in Brazil: Envirotypes applied in the adaptability and stability of wheat genotypes in contrasting environments

Casagrande

Mezzomo

Santos

et al. 2023

Preprint

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Global climate changes can dramatically impact wheat production in Brazil's Cerrado biome, considered a new wheat farming frontier. Therefore, new approaches are needed to better understand the G×E interaction in environments with high climate variations. Here, we integrate envirotyping, adaptability, and stability techniques to better understand the G×E interaction and provide new insights for the recommendation of tropical wheat genotypes that can perform well in hotter and drier environments. Thirty-six wheat genotypes were evaluated for grain yield in eight field trials in 2018, 2019, and 2020 in the Brazilian Cerrado region. There is strong evidence that even in irrigated conditions, temperatures > 30 ºC during the booting and heading/flowering stages dramatically reduce the grain yield. Two lines, VI14774 (GY = 3800 kg ha-1), and VI14980 (GY = 4093 kg ha-1) had better performance in the hotter environment (~ 22% and ~ 32% higher than the grand mean) and are potential germplasm sources for warmer environments at the boosting and heading/flowering stages. Overall, this study provides new insights on how the environment typing can be useful to better understand the genotype-by-environment interaction and help to breed new climate-resilient wheat cultivars for the cerrado region. In this study, the REML/BLUP and GGE Biplot methods highly correlate in terms of genotype classification for selection and recommendation purposes. The genotypes VI 14127, VI 14197, VI 14026, and BRS 264 are the closest to a hypothetical ideal genotype.

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Adaptability and stability with multivariate definition of macroenvironments for wheat yield in Rio Grande do Sul

Cited by 5 publications

References 21 publications

Maize genetic breeding for tolerance to abiotic stress with focus on sustainable use of environmental resources

Maize genetic breeding for tolerance to abiotic stress with focus on sustainable use of environmental resources

Envirotypes applied to evaluate the adaptability and stability of wheat genotypes in the tropical region in Brazil

New agricultural wheat frontier in Brazil: Envirotypes applied in the adaptability and stability of wheat genotypes in contrasting environments

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