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Transgressive segregation for frost resistance in hexaploid oats (Avena spp.)

Published online by Cambridge University Press:  27 March 2009

G. Jenkins
G. Jenkins
Affiliation:
Plant Breeding Institute, Cambridge
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Summary

Results are presented from freezing tests on five varieties of winter oats from diverse origins, on their crosses in the F1 and F2 generations and on selected F3 lines from six of the crosses.

Analysis of the F1 results indicated that frost resistance was mainly determined by recessive genes, additive in their effect, but in the F2 experiment there was evidence of non-allelic gene interaction. Significant general combining ability (GCA) effects were obtained in both the F1 and F2 experiments but specific combining ability (SCA) effects were significant only in the F2 crosses. The variety Novosadsky II displayed consistently high general combining ability.

Tests on F3 lines derived from selected F2 plants revealed considerable transgression for frost resistance in all six crosses studied. The results are discussed in relation to breeding for improved frost resistance in oats.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 73 , Issue 3 , December 1969 , pp. 477 - 482
Copyright
Copyright © Cambridge University Press 1969

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References

REFERENCES

Amirshashi, M. C. & Patterson, F. L. (1956). Cold resistance of parent varieties, F2 populations and F3 lines of 20 oat crosses. Agron. J. 48, 184–8.Google Scholar
Coffman, F. A. (1937). Species hybridisation: a probable method for producing hardier winter oats. J. Am. Soc. Agron. 29, 79–91.Google Scholar
Coffman, F. A. (1962). Increased winter hardiness in oats now available. Agron. J. 54, 489–91.Google Scholar
Coffman, F. A., Murphy, H. C. & Chapman, W. H. (1961). Oatbreeding. In Oats and oat improvement. Ed. Coffman, F. A., pp. 305–6, Am. Soc. Agron.CrossRefGoogle Scholar
Dexter, S. T. (1956). The evaluation of crop plants for winter hardiness. Adv. Agron. 8, 203–39.Google Scholar
Finkner, V. C. (1966). Transgressive segregation for increased winter survival in oats (Avena sativa, L.) Crop Sci. 6, 297–8.Google Scholar
Griffing, B. (1956). Concept of general and specific combining ability in relation to diallel crossing systems. Aust. J. biol. Sci. 9, 463–93.Google Scholar
Hayman, B. I. (1954). The theory and analysis of diallel crosses. Genetics 39, 789–809.CrossRefGoogle ScholarPubMed
Hill, J. (1964). Effects of correlated gene distributions in the analysis of diallel crosses. Heredity, Lond. 19, 27–46.CrossRefGoogle ScholarPubMed
Hunter, H. (1935). The improvement of winter oats. J. agric. Sci., Camb. 25, 419–44.Google Scholar
Jinks, J. L. (1954). The analysis of continuous variation in a diallel cross of Nicotiana rustica varieties. Genetics 39, 767–88.Google Scholar
Jones, E. T. (1956). The origin, breeding and selection of oats. Agric. Rev., Lond. 11, 20–8.Google Scholar
Lazenby, A. & Rogers, H. H. (1963). A technique for herbage management studies under controlled low temperature. Crop Sci. 3, 179–80.Google Scholar
Marshall, H. G. (1965). A technique of freezing plant crowns to determine the cold resistance of winter oats. Crop Sci. 5, 83–7.Google Scholar
Pfahler, P. L. (1966). Small grain improvement by breeding and selection. Rep. Fla. agric. Exp. Stn. p. 52.Google Scholar
Suneson, C. A. & Marshall, H. G. (1967). Cold resistance in wild oats. Crop Sci. 7, 667–8.CrossRefGoogle Scholar