Variâncias, covariâncias e correlações fenotípicas. genotípicas e genéticas aditivas num composto de milho (Zea mays L.)

Autores

  • Adair José Regazzi UFV
  • José Carlos Silva UFV
  • José Tarcísio Lima Thiébaut UFV
  • Laede Maffia de Oliveira UFV
  • José Domingos Galvão UFV

Palavras-chave:

variância genética aditiva, correlação fenotípica genética, estimativa de hereditariedade, composto dentado milho, análise de variância conjunta

Resumo

Measurements of several agronomic traits in corn (Zea mays L.) were obtained from 156 progenies produced using Comstock and Robinson’s design I mating system, where 39 plants used as males were crossed each with four different plants used as females. The basic population was the «Dent Composite B».

Referências

BHATT, G.M. Significance of path coefficient analysis in determining the nature of character association. Euphytica, 22:338-343, 1973.

COMSTOCK, R.E. & ROBINSON, H.F. The components of genetic variances in populations of biparental progenies and their use in estimating the average degree of dominance. Biometrics, 4:254-266. 1948.

COMSTOCK, R.E. & ROBINSON, H.F. Estimation of average dominance of genes. In: Heterosis. Ames, Iowa State College Press, 1952. p.494-516.

DUDLEY, J.W. & MOLL, R.H. Interpretation and use of estimates of heritability and genetic variances in plant breeding. Crop Sci., 9:257-262. 1969.

FALCONER, D.S. Iniroduction to quantitative genetics. The Ronald Press Company, New York, 1960. 365 p.

GOMES, F.P. Curso de estatística experimental. ESALQ, Piracicaba, 1976. 430 p.

KEMPTHORNE, O. An Introduction to genetic statistics. Ames, Iowa, The Iowa State University Press, 1973. 545 p.

LIMA, T.8.0. Avaliação das capacidades geral e especifica de combinação e correlação entre caracteres em oito populações de milho (Zea mays L.) opaco2. UFV, Viçosa, 1977. 71 p. (Tese Mestrado).

LINDSEY, M.F., LONNQUIST, J.H. & GARDNER, C.O. Estimates of genetic variances in open-pollinated varieties of cornbelt corn. Crop Sci., 2:105-108. 1962.

MARQUEZ-SANCHEZ, F. & HALLAUER, A R. Influence of sample size on the estimation of genetic variances in a synthetic variety of maize. I. Grain yield. Crop Sci., 10:357-361. 1970.

MODE, C.J. & ROBINSON, HF. Pleiotropism and the genetic variance and covariance. Biometrics, 15:518-537. 1959.

ROBINSON, H.F.; COMSTOCK, R.E. and HARVEY, P.H. Genotypic and phenotypic correlation in com and their implications in selection. Agron. Journ., 43:282-287, 1951.

SILVA, J.C. Genetic and environmental variances and covariances estimated in the maize (Zea mays L.) variety, Iowa Stiff Stalk-Synthetic. Iowa State University, Ames, Iowa, 1974. 155 p. (Ph.D. thesis).

SILVA, W.J. & LONNQUIST, J.H. Genetic variances in populations developed from full-sib an S testcross progeny selection in a open-pollinated variety of maize. Crop Sci., 8:201-204. 1968.

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2025-03-31

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Regazzi, A. J., Silva, J. C., Lima Thiébaut, J. T., Maffia de Oliveira, L., & Galvão, J. D. (2025). Variâncias, covariâncias e correlações fenotípicas. genotípicas e genéticas aditivas num composto de milho (Zea mays L.). Revista Ceres, 27(149), 32–46. Recuperado de https://ojs.ceres.ufv.br/ceres/article/view/7071

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