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Inter-varietal competion and its possible consequences for the production of F1 hybrid wheat

Published online by Cambridge University Press:  27 March 2009

G. C. M. Sage
G. C. M. Sage
Affiliation:
Plant Breeding Institute, Tumkpington, Cambridge
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Summary

The graphical and statistical analyses of competition diallels devised by Durrant were applied to an experiment investigating competition between four spring-wheat varieties. The results indicated that at low seed rates mixtures between varieties having a wide phenotypic difference between them in competitive characters, such as height and early maturity, could significantly outyield pure-stands of the component varieties. However, the results of a second experiment, in which these mixtures were grown at a range of seed rates, indicated that the yield advantage of mixtures over pure-stands was unlikely to occur at normal seed rates.

It is suggested that, at the low seed rates likely to be used in growing F1 hybrid wheat crops, mixtures of F1 hybrids and male parental lines might achieve very nearly the same yield as the pure F1 hybrid variety with a seed bulk that was cheaper to produce.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 77 , Issue 3 , December 1971 , pp. 491 - 498
Copyright
Copyright © Cambridge University Press 1971

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References

REFERENCES

Bond, D. A., Fyfe, J. L. & Toynbee Clarke, G. (1966). Yields of mixtures of single-cross hybrid field beans (Vicia faba L.) with one of the parental inbred lines. J. agric. Sci., Camb. 67, 235–7.CrossRefGoogle Scholar
Burton, G. W. (1948). The performance of various mixtures of hybrid and parent inbred pearl millet. J. Am. Soc. Agron. 40, 908–15.CrossRefGoogle Scholar
Durrant, A. (1965). Analysis Of Reciprocal differences in diallel crosses. Heredity, Lond. 20, 573–607.CrossRefGoogle Scholar
Frey, K. J. & Maldonado, V. (1967). Relative productivity of homogeneous and heterogeneous oat cultivars in optimum and sub-optimum environments. Crop. Sci. 7, 532–5.CrossRefGoogle Scholar
Jensen, N. F. (1965). Multi-line superiority in cereals. Crop Sci. 5, 566–8.CrossRefGoogle Scholar
N. I. A. B. (1966). Fmrs' Leafl. natn. Inst. agric. Bot. no. 8.Google Scholar
Norrington-Davies, J. (1967). Application of diallel analysis to experiments in plant competition. Euphytica 16, 391–406.CrossRefGoogle Scholar
Report Of The Plant Breeding Institute (1965–1966). Annual Report of The Plant Breeding Institute, Cambridge, 1965–1966, pp. 68–9.Google Scholar
Simmonds, N. W. (1962). Variability in crop plants, its use and conservation. Biol. Rev. 37, 422–65.CrossRefGoogle Scholar
Tysdal, H. M. & Keisselbach, T. A. (1944). Hybrid alfalfa. J. Am. Soc. Agron. 36, 649–67.CrossRefGoogle Scholar