Advertisement

Theoretical and Applied Genetics

, Volume 53, Issue 2, pp 89–91 | Cite as

Limitations of conventional regression analysis a proposed modification

  • M. M. Verma
  • G. S. Chahal
  • B. R. Murty
Article

Summary

The conventional genotype-environment interaction analysis cannot detect the theoretically ideal genotype which has been defined as the one with relatively low sensitivity in the poor environments and high sensitivity in the favourable environments.

The computation of separate regression coefficients on the two regions of the response curve has been suggested to detect such genotypes. This procedure is simple and more convenient than the complicated curvilinear regression analysis.

Key words

Regression analysis Genotype-environment interaction Proposed modification 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Literature

  1. Bains, K.S.: Parent dependent genotype × environment interaction in crosses of spring wheat. Heredity36, 163–171 (1976)Google Scholar
  2. Bucio-Alanis, L.; Perkins, J.M.; Jinks, J.L.: Environmental and genotype-environmental components of variability. V. Segregating generations. Heredity24, 155–157 (1969)Google Scholar
  3. Eberhart, S.A.; Russell, W.A.: Stability parameters for comparing varieties. Crop Sci.6, 36–40 (1966)Google Scholar
  4. Finlay, K.W.; Wilkinson, G.N.: The analysis of adaptation in a plant breeding programme. Aust. J. Agri. Res.14, 742–754 (1963)Google Scholar
  5. Perkins, J.M.; Jinks, J.L.: Environmental and genotype-environmental components of variability. III. Multiple lines and crosses. Heredity23, 339–356 (1968a)Google Scholar
  6. Perkins, J.M.; Jinks, J.L.: Environmental and genotype-environmental components of variability. IV. Non-linear interactions for multiple inbred lines. Heredity23, 525–535 (1968b)Google Scholar

Copyright information

© Springer-Verlag 1978

Authors and Affiliations

  • M. M. Verma
    • 1
  • G. S. Chahal
    • 1
  • B. R. Murty
    • 2
  1. 1.Department of Plant BreedingPunjab Agricultural UniversityLudhianaIndia
  2. 2.Nuclear Research LaboratoryIndian Agricultural Research InstituteNew DelhiIndia

Personalised recommendations