Identificação de cultivares de milho com base na análise de estabilidade fenotípica no meio-norte brasileiro

Cardoso, M. J.; Carvalho, H. W. L. de; Rocha, L. M. P.; Pacheco, C. A. P.; Guimarães, L. J. M.; Guimarães, P. E. de O.; Parentony, Sidney Netto; Oliveira, I. R. de

doi:10.1590/s1806-66902012000200018

Cited by 10 publications

(8 citation statements)

References 3 publications

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“…The coefficient of variation (CV), which measures experimental accuracy, was 14.49%, classified as average for the productivity of maize grain (FRITSCHE-NETO et al, 2012) and indicating good experimental precision. In similar studies with maize, the value for the coefficient of variation ranged from 10.66% (CARGNELUTTI FILHO et al, 2009) to 22.0% (CARDOSO et al, 2012) for the characteristic of grain yield. Such satisfactory precision was confirmed by the high value for accuracy (0.76) obtained with the combined analysis (RESENDE; DUARTE, 2007).…”

Section: Resultsmentioning

confidence: 93%

Adaptability and stability in commercial maize hybrids in the southeast of the State of Minas Gerais, Brazil

Faria

Luz

Rodrigues

et al. 2017

Revista Ciência Agronômica

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The aim of this study was to evaluate the adaptability and stability of 29 commercial maize hybrids in the southeast of the State of Minas Gerais, Brazil, employing three methods. The 29 commercial maize hybrids from the 2014/2015 crop were evaluated for grain yield in five locations in the southeast of Minas Gerais. A randomised-block design was used, with two replications. Each lot comprised two rows, five meters in length, at a spacing of 0.80 m, giving an effective area of 8.00 m2. In addition to individual and combined variance analysis, the methods of Eberhart & Russell (1966), AMMI (Additive Main Effects and Multiplicative Interaction Analysis) and mixed models were used to evaluate the adaptability and stability of the 29 hybrids. There was a significant difference (P<0.01) for the effects of hybrid, environment and the hybrid x environment interaction. The majority of the hybrids under evaluation displayed broad adaptability with good stability. It was concluded that the Eberhart & Russell, AMMI and mixed-model methods show similar results in classifying maize hybrids of broad adaptability. There is a difference in indicating hybrids with specific adaptability to favourable and unfavourable environments. Based on the three methods, the hybrids SHS7920PRO, BM709PRO2, BRS1055 and BM650PRO2 show a general adaptability for the environments under evaluation.

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Section: Resultsmentioning

confidence: 93%

Adaptability and stability in commercial maize hybrids in the southeast of the State of Minas Gerais, Brazil

Faria

Luz

Rodrigues

et al. 2017

Revista Ciência Agronômica

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“…The potential for the grain production may be affected by the interaction between the hybrid and the cultivation conditions. Cardoso et al [10] recorded varying responses of cultivars being well-adapted to a wide range of conditions, in which they maintain their productivity. In conclusion, besides the potential use of biotechnological and genetic approaches in the improvement of different plant species [11][12][13][14][15][16][17][18][19], they could be used for improving maize yield and quality.…”

Section: Technologies Developed To Enhance Maize Productivitymentioning

confidence: 99%

Introductory Chapter: Introduction to Biotechnological Approaches for Maize Improvement

El‐Esawi¹

2018

Maize Germplasm - Characterization and Genetic Approaches for Crop Improvement

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“…Each year, a number of new hybrids are marketed, following extensive testing in the principal corn-producing regions of the country to determine the conditions to which the hybrid is best adapted. In a study of 22 hybrids at 14 different sites, Cardoso et al [7] observed varying responses, with some cultivars being well-adapted to a wide range of conditions, in which they maintain their productivity, whereas others are better adapted to certain specific conditions.…”

Section: Use Of Hybrids To Increase Productivitymentioning

confidence: 99%

Use of Technology to Increase the Productivity of Corn in Brazil

Buso¹,

Silva²

2018

Maize Germplasm - Characterization and Genetic Approaches for Crop Improvement

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Brazil is one of the world's principal producers of corn, and over the past few decades, a range of new technologies have been incorporated to guarantee advances in the productivity of this crop. Initially, genetic enhancement was achieved through the production of hybrid seed that was more productive than freely pollinated cultivars. Subsequent adjustments to cultivation practices, such as the reduction in row spacing, balanced fertilisation and direct planting, have contributed to a progressive increase in productivity. The authorisation of the marketing of transgenic seed, providing resistance to insect pests and herbicides, contributed further to productivity by reducing losses to pests (Spodoptera frugiperda) and competition with weeds. Together, all these technological advances have contributed to ever increasing gains in the productivity of Brazilian corn crops.

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Identificação de cultivares de milho com base na análise de estabilidade fenotípica no meio-norte brasileiro

Cited by 10 publications

References 3 publications

Adaptability and stability in commercial maize hybrids in the southeast of the State of Minas Gerais, Brazil

Adaptability and stability in commercial maize hybrids in the southeast of the State of Minas Gerais, Brazil

Introductory Chapter: Introduction to Biotechnological Approaches for Maize Improvement

Use of Technology to Increase the Productivity of Corn in Brazil

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