Summary
Surgarcane variety trial data from Barbados and Jamaica were analysed by the analysis of variance. From these analyses, components of variance were estimated in an attempt to quantify genotype x environment interactions. Sixteen sets of trials from Barbados and eight from Jamaica were analysed. The results show that GE effects in both countries were small. It is suggested, on the basis of these analyses that variety trials could use resources more efficiently by growing them at fewer sites, since the absence of site x variety interaction makes each site equally effective for identifying the best genotypes.
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References
Allard R. W. & A. D.Bradshaw, 1964. Implications of genotype-environmental interactions in applied plant breeding. Crop Sci. 4: 503–507.
Dowker B. D., 1971. Variation studies in carrots as an aid to breeding. I. Concepts. J. Hort. Sci. 46: 455–497.
Dudley J. W. & R. H.Moll, 1969. Interpretation and use of estimates of heritability and genetic variances in plant breeding. Crop Sci. 9: 257–262.
George, E. F., 1965. An experiment to assess the effects of competition between sugar cane clones of the Microplot stage of selection. Proc. of 12th Congress of the ISSCT: 920–930.
Hill J., 1975. Genotype-environmental interactions-a challenge to plant breeding. J. Agric. Sci. 85: 477–493.
Hogarth D. M., 1971. Quantitative inheritance studies in sugar cane. I. Estimation of variance components. Aust. J. Agric. Res. 22: 93–102.
Linsey M. F., J. H.Lonquist & C. O.Garner, 1962. Estimates of genetic variance in open-pollinated varieties of corn-belt corn. Crop Sci. 2: 105–108.
Miller P. A., J. C.Williams, R. E.Comstock & H. G.Robinson, 1958. Estimates of genotypic and environmental variances and co-variances in upland cotton and their implications in selection. Agron. J. 50: 126–131.
Miller P. A., J. C.Williams & H. G.Robinson, 1959. Variety x environmental interactions in cotton variety tests and their implications on testing methods. Agron. J. 51: 132–134.
Parlevliet J. E., 1976. Breeding pyrethrum in Kenya. Pyrethrum Post. 13: 47–54.
Skinner J. C., 1961. Sugar Cane Selection Experiments. 2. Competition between varieties. Bureau of Sugar Experiment Stations Queensland Tech. Comm. 1961, No. 1: 1–26.
Snedecor, G. W. & W. G. Cochran, 1967. Statistical methods. pp. 368–375. Iowa State University Press.
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Kennedy, A.J. Analysis of sugar cane variety trials. I. Components of variance and genotype-environment interactions. Euphytica 27, 767–775 (1978). https://doi.org/10.1007/BF00023713
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DOI: https://doi.org/10.1007/BF00023713