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Implications of the population effect in the selection of soybean progeny
Author(s) -
Cássia Pereira Francielly,
Bruzi Adriano Teodoro,
Matos José Wilacildo,
Rezende Breno Alvarenga,
Prado Luis Claudio,
Nunes José Airton Rodrigues
Publication year - 2017
Publication title -
plant breeding
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.583
H-Index - 71
eISSN - 1439-0523
pISSN - 0179-9541
DOI - 10.1111/pbr.12512
Subject(s) - biology , inbreeding , population , genetic gain , heritability , selection (genetic algorithm) , effective population size , statistics , genetic variation , microbiology and biotechnology , agronomy , zoology , genetics , demography , mathematics , artificial intelligence , sociology , computer science , gene
The goal of this study was to verify the influence of the population effect in the estimates of genetic and phenotypic components and to identify the best soybean progeny or lines in a commercial soybean breeding programme. We evaluated 292 populations for grain yield and absolute maturity during three agricultural years. To quantify the efficiency of the inclusion of the population's effect in the model, we estimated genetic gain with the selection, the Spearman's correlation, the coincidence index, the realized gain and correlated response of selected genotypes with and without the effect of the population. It was found that the variance components, heritability and coefficient of experimental variation were better estimated when the effect of the population was included, providing greater gain with selection for grain yield and absolute maturity. Coincidence and ranking among the selected progeny with and without the effect of the population are of greater magnitude in more advanced inbreeding generations and at higher percentage of selected progeny. The use of the population effect has greater importance in earlier generations of inbreeding.