Hostname: page-component-78c5997874-t5tsf Total loading time: 0 Render date: 2024-11-03T05:27:45.306Z Has data issue: false hasContentIssue false
  • English
  • Français

Varietal differences in growth parameters of wheat and their importance in determining yield

Published online by Cambridge University Press:  27 March 2009

F. G. H. Lupton ,
Mohamed A. M. Ali  and
S. Subramaniam
F. G. H. Lupton
Affiliation:
Plant Breeding Institute, Trumpington, Cambridge
Mohamed A. M. Ali
Affiliation:
Plant Breeding Institute, Trumpington, Cambridge
S. Subramaniam
Affiliation:
Plant Breeding Institute, Trumpington, Cambridge
Get access Rights & Permissions [Opens in a new window]

Extract

The growth and development of five winterwheat varieties and of random selections from hybrids between them were compared. Successive sampling demonstrated varietal differences in orthogonal polynomial regression coefficients fitted to data for tiller number, shoot weight and leaf area. The correlation coefficients between these parameters and yield were statistically significant, but when polynomial regression equations of yield on them were determined, only the terms relating to shoot weight and leaf area duration after anthesis were significant.

The heritabilities of these parameters in each of 2 years were determined from measurements of genetic and environmental variance. The results obtained were compared each year with estimates of yield derived from parameters determined in the other year. The correlation between successive estimates of yield was found to be closer than that of of yield was found to be closer than that of yield with any of the growth parameters.

Separate analyses of crosses involving each of the parental varieties showed seasonal and varietal differences in the usefulness of the growth parameters for predicting yield.

The value of this approach to the choice of parents is discussed in view of these findings.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 69 , Issue 1 , August 1967 , pp. 111 - 123
Copyright
Copyright © Cambridge University Press 1967

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

Carr, D. J. & Wardlaw, I. F. (1965). The supply of photosynthetio assimilates to the grain from the flag leaf and ear of wheat. Aust. J. biol. Sci. 18, 711–19.Google Scholar
Engledow, F. L. & Wadham, S. M. (1923). Investigations on yield in the cereals. I. J. agric. Sci., Camb. 13, 390–439.CrossRefGoogle Scholar
Fisher, R. A. & Yates, F. (1963). Statistical Tables for Biological, Agricultural and Medical Research, 6th ed.Edinburgh: Oliver and Boyd.Google Scholar
Lupton, F. G. H. (1961). Varietal differences in some physiological characters of wheat. Ann. appl. Biol. 57, 281–6.CrossRefGoogle Scholar
Lupton, F. G. H. (1965). Studies in the breeding of self pollinating cereals. 5. Use of the incomplete diallel in wheat breeding. Euphytica. 14, 331–52.CrossRefGoogle Scholar
Lupton, F. G. H. (1966). Translocation of photosynthetic assimilates in wheat. Ann. appl. Biol. 57, 355–64.CrossRefGoogle Scholar
Stoy, V. (1963). The translocation of C14 labelled photosynthetic products from the leaf to the ear in wheat. Physiologia Pl. 16, 851–66.CrossRefGoogle Scholar
Thorne, G. N. (1963). Varietal differences in photosynthesis of ears and leaves of barley. Ann. Bot. N. S. 27, 155–74.CrossRefGoogle Scholar
Thorne, G. N. (1965). Photosynthesis of ears and flag leaves of wheat and barley. Ann. Bot. N. S. 29, 317–29.CrossRefGoogle Scholar
Vernon, A. J. & Allison, J. C. S. (1963). A method of calculating net assimilation rate. Nature, Lond. 200, 814.CrossRefGoogle Scholar
Watson, D. J. (1952). The physiological basis of variation in yield. Adv. Agron. 4, 101–145.CrossRefGoogle Scholar
Watson, D. J., Thorne, G. N. and French, S. A. W. (1958). Physiological causes of differences in grain yield between varieties of barley. Ann. Bot. N. S. 22, 321–52.CrossRefGoogle Scholar
Watson, D. J., Thorne, G. N. & French, S. A. W. (1963). Analysis of growth and yield of winter and spring wheats. Ann. Bot. N. S. 27, 1–22.CrossRefGoogle Scholar