Summary
We tested three sets of oat varieties for grain yield in a series of environments and observed that generally more than 80% of the yield variation for individual varieties was due to linear regression response. Mean yields for varieties were significantly variable in all three sets, and regression response indexes were significantly variable in two of them.
Mean yields over the three sets were correlated with regression response indexes with r=0.61. Associations of mean yield with the three stability parameters (i.e., coefficient of determination, mean square for deviations from regression, and ecovalence) were low and usually not significant. The correlation of regression response indexes with coefficients of determination was 0.42, but neither of the other stability parameters was associated with the response indexes. The three stability parameters were closely correlated with one another.
Our materials were selected varieties, so evidently our results suggest what can be accomplished in breeding for combinations of mean production, production response, and productiom stability.
Similar content being viewed by others
References
Breese, E. L., 1969. The measurement and significance of genotype-environment interaction in grasses. Heredity 24: 27–44.
Eagles, H. A., P. N., Hinz & K. J., Frey, 1977. Selection of superior cultivars of oats by using regression coefficients. Crop Sci. 17: 101–105.
Easton, H. S. & R. J., Clements, 1973. The interaction of wheat genotypes with a specific factor of the environment. J. Agric. Sci. 80: 43–52.
Eberhart, S. A. & W. A., Russell, 1966. Stability parameters for comparing varieties. Crop Sci. 6: 36–40.
Fatunla, T. & K. J., Frey, 1974. Stability indexes of radiated and nonradiated oat genotypes propagated in bulk populations. Crop Sci. 14: 719–724.
Finlay, K. W. & G. N., Wilkinson, 1963. The analysis of adaptation in a plant-breeding programme. Aust. J. Agric. Res. 14: 742–754.
Freeman, G. H. & J. M., Perkins, 1971. Environmental and genotype-environmental components of variability. VIII. Relations between genotypes grown in different environments and measures of these environments. Heredity 27: 15–23.
Gonzalez-Rosquel, V., 1976. Evolution of production stability and other quantitative traits in a bulk population of oat. Ph. D. dissertation, Iowa State Univ., Ames, Iowa.
Hardwick, R. C. & J. T., Wood, 1972. Regression methods of studying genotype-environment interactions. Heredity 28: 209–22.
Langer, I., K. J. Frey & T. B. Bailey, 1978. Production response and stability characteristics of oat cultivars developed in different eras. Crop Sci. 18: in press.
Luthra, O. P. & R. K., Singh, 1974. A comparison of different stability models in wheat. Theo. Appl. Genet. 45: 143–149.
Oka, H. I., 1975. Breeding for wide adaptability. In: T. Matsuo (Ed.), Adaptability in plants. pp. 177–185. Univ. Tokyo Press.
Perkins, J. M. & J. L., Jinks, 1968a. Environmental and genotype-environmental components of variability. III. Multiple lines and crosses. Heredity 23: 339–356.
Perkins, J. M. & J. L., Jinks, 1968b. Environmental and genotype-environmental components of variability. IV. Nonlinear interactions for multiple inbred lines. Heredity 23: 525–535.
Pinthus, M. J., 1973. Estimate of genotypic value: a proposed method. Euphytica 22: 121–123.
Wricke, G., 1962. Uber eine Methode für Erfassung der ökologischen Streubreite in Feldversuchen. Z. Pflanzenzücht. 47: 92–96.
Yates, F. & W. G., Cochran, 1938. The analysis of groups of experiments. J. Agric. Sci. 28: 556–580.
Author information
Authors and Affiliations
Additional information
Journal Paper No.J-9092 of the Iowa Agriculture and Home Economics Experiment Station, Ames, Iowa, USA 50011. Project 1752. This work was supported in part by the International Atomic Energy Agency, vienna, Austria, in the form of a fellowship for the senior author.
Rights and permissions
About this article
Cite this article
Langer, I., Frey, K.J. & Bailey, T. Associations among productivity, production response, and stability indexes in oat varieties. Euphytica 28, 17–24 (1979). https://doi.org/10.1007/BF00029168
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00029168