Hostname: page-component-78c5997874-g7gxr Total loading time: 0 Render date: 2024-11-03T05:21:30.314Z Has data issue: false hasContentIssue false
  • English
  • Français

Effects of differences in date of ear emergence and height on yield of winter wheat

Published online by Cambridge University Press:  27 March 2009

P. Innes ,
J. Hoogendoorn  and
R. D. Blackwell
P. Innes
Affiliation:
Plant Breeding Institute, Trumpington, Cambridge, CB2 2LQ
J. Hoogendoorn
Affiliation:
Plant Breeding Institute, Trumpington, Cambridge, CB2 2LQ
R. D. Blackwell
Affiliation:
Plant Breeding Institute, Trumpington, Cambridge, CB2 2LQ
Get access Rights & Permissions [Opens in a new window]

Summary

Early and late, and short and tall lines were selected from a cross between the winter wheat varieties Norman and Talent. All short selections carried the Rht2 dwarfing gene while the tall ones did not. The selections were compared in field experiments at the Plant Breeding Institute in Trumpington and at The Murrays Experimental Farm of the Scottish Crop Research Institute near Pathhead. In one of the experiments at Trumpington the plots were automatically sheltered from rain and the effects of withholding water before anthesis and withholding water during grain filling were studied.

In all trials the early selections gave grain yields equal to or greater than the late selections. There were no differences in number of ears/m2 or in number of grains per ear between the early and the late selections. Mean weight per grain of the early selections was greater than that of the late selections.

The short selections gave grain yields equal to or greater than the tall selections, except when water was withheld during grain filling in the sheltered experiment. There were no differences in number of ears/m2 between the short and the tall selections. The number of grains per ear was greater and mean weight per grain was less for the short selections than for the tall selections.

It is concluded that for general fitness to U.K. conditions, new varieties should be semi-dwarf, but earlier than current varieties.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 105 , Issue 3 , December 1985 , pp. 543 - 549
Copyright
Copyright © Cambridge University Press 1985

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Austin, R. B., Bingham, J., Blackwell, R. D., Evans, L. T., Ford, M. A., Morgan, C. L. & Taylor, M. (1980). Genetic improvements in winter wheat yields since 1900 and associated physiological changes. Journal of Agricultural Science, Cambridge 94, 676–689.CrossRefGoogle Scholar
Austin, R. B. & Blackwell, R. D. (1980). Edge and neighbour effects in cereal yield trials. Journal of Agricultural Science, Cambridge 94, 731–734.CrossRefGoogle Scholar
Bingham, J. (1966). Varietal response in wheat to water supply in the field, and male sterility caused by a period of drought in a glasshouse experiment. Annals of Applied Biology 57, 365–377.CrossRefGoogle Scholar
Cholick, F. A., Welsh, J. R. & Cole, C. V. (1977). Rooting patterns of semi-dwarf and tall winter wheat cultivars under dryland field conditions. Crop Science 17, 637–639.CrossRefGoogle Scholar
Fischer, R. A. (1979). Growth and water limitation to dryland wheat yield in Australia: a physiological framework. Journal of the Australian Institute of Agricultural Science 45, 83–94.Google Scholar
Fischer, R. A. & Maurer, R. (1978). Drought resistance in spring wheat cultivars. 1. Grain yield responses. Australian Journal of Agricultural Research 29, 897–912.CrossRefGoogle Scholar
Gale, M. D. (1978). The effects of Norin 10 dwarfing genes on yield. In Proceedings 5th International Wheat Genetics Symposium, Indian Society of Genetics and Plant Breeding, New Delhi, pp. 978–987.Google Scholar
Gale, M. D., Law, C. N. & Worland, A. J. (1975). The chromosomal location of a major dwarfing gene from Norin 10 in new British semi-dwarf wheats. Heredity 35, 417–421.CrossRefGoogle Scholar
Holbrook, F. S. & Welsh, J. R. (1980). Soil-water use by semidwarf and tall winter wheat cultivars under dryland field conditions. Crop Science 20, 244–246.CrossRefGoogle Scholar
Hoogendoorn, J. (1985). The basis of variation in date of ear emergence under field conditions among the progeny of a cross between two winter wheat varieties. Journal of Agricultural Science, Cambridge 104, 493–500.CrossRefGoogle Scholar
Hurd, E. A. (1974). Phenotype and drought tolerance in wheat. Agricultural Meteorology 14, 39–55.CrossRefGoogle Scholar
Innes, P. & Blackwell, R. D. (1981). The effect of drought on the water use and yield of two spring wheat genotypes. Journal of Agricultural Science, Cambridge 96, 603–610.CrossRefGoogle Scholar
Innes, P., Blackwell, R. D., Austin, R. B. & Ford, M. A. (1981). The effects of selection for number of ears on the yield and water economy of winter wheat. Journal of Agricultural Science, Cambridge 97, 523–532.CrossRefGoogle Scholar
MacKey, J. (1973). The wheat root. In Proceedings of the 4th International Wheat Genetics Symposium (ed. Sears, E. R. and Sears, L. M.), pp. 827–842. University of Missouri.Google Scholar
Monyo, J. H. & Whittington, W. J. (1970). Genetic analysis of root growth in wheat. Journal of Agricultural Science, Cambridge 74, 329–338.CrossRefGoogle Scholar
Pinthus, M. J. & Millet, E. (1978). Interactions among number of spikelets, number of grains and grain weight in the spikes of wheat (Triticum aestivum L.). Annals of Botany 42, 839–848.CrossRefGoogle Scholar
Seetharama, N., Subba, Reddy B. V., Peacock, J. M. & Bidinger, F. R. (1982). Sorghum improvement for drought resistance. In Drought Resistance in Crops with Emphasis on Rice, pp. 317–338. International Rice Research Institute.Google Scholar
Woodruff, D. R. (1983). The effect of a common date of either anthesis or planting on the rate of development and grain yield of wheat. Australian Journal of Agricultural Research 34, 13–22.CrossRefGoogle Scholar
Woodruff, D. R. & Tonks, J. (1983). Relationship between time of anthesis and grain yield of wheat genotypes with differing developmental patterns. Australian Journal of Agricultural Research 34, 1–11.CrossRefGoogle Scholar