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REFERENCES

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  • Anderson, E. (1953) Introgressive hybridization. Biol. Rev., 28, 280.
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  • Harberd, D. J. (1957). The within population variance in genecological trials. New Phytol., 56, 269.
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  • Williams, R. D. & Williams, W. (1947). Genetics of red clover (Trifolium pratense L.) compatibility III. The frequency of incompatibility S alleles in two non-pedigree populations of red clover. J. Genet., 48, 69.
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