Euphytica

, Volume 19, Issue 1, pp 54–60 | Cite as

The inheritance of morphological and agronomic characters in spring wheat

  • P. Hsu
  • P. D. Walton
Article

Summary

Inheritance of yield and its component (number of ears per plant, number of spikelets per ear, number of kernels per ear, 1000-kernel weight), together with the inheritance of morphological characters (flag leaf length, flag leaf breadth, peduncle length, extrusion length and leaf sheath length) and anthesis date was studied in a 5-parent diallel cross of spring wheat varieties. The diallel analysis of gene actions indicated that a large part of the total genetic variation observed for all the characters studied was in the form of additive genetic effects. The degree of dominance was also determined for each character. Number of ears per plant showed most overdominance, followed by leaf sheath length. Full or nearly full dominance was found for anthesis date, flag leaf length and yield per plant. Other characters showed partial dominance. Correlation coefficients showed that yield per plant, as well as being correlated with the yield components, was also assiciated with flag leaf breadth and leaf sheath length. There was no evidence of genetic barriers to the combining of ideal characters among the varieties of different origin.

Keywords

Spring Wheat Flag Leaf Total Genetic Variation Additive Genetic Effect Genetic Barrier 

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References

  1. Austenson, H. & Walton, P. D., 1970. Relationship between initial seed weight and mature plant characters in spring wheat. Can. J. Pl. Sci. (in press).Google Scholar
  2. Asana, R. D. &Mani, V. S., 1950. Studies in physiological analysis of yield. I. Varietal differences in photosynthesis in the leaf, stem, and ear of wheat. Physiol. Pl. 3: 22–39.Google Scholar
  3. Asana, R. D. &Mani, V. S., 1955. Studies in physiological analysis of yield. II. Further observations on varietal differences in photosynthesis in the leaf, stem, and ear of wheat. Physiol. Pl. 8: 8–19.Google Scholar
  4. Crumpacker, D. W. & Allard, R. W., 1962. A diallel analysis of heading date in wheat. Hilgardia 32 (No. 6).Google Scholar
  5. Engledow, F. L. &Wadham, S. M., 1923. Investigation on yield in the cereals. Part I. J. agric. Sci., 13: 390–439.Google Scholar
  6. Griffing, J. B., 1956a. A generalized treatment of diallel crosses in quantitative inheritance. Heredity 10: 31–50.Google Scholar
  7. Griffing, J. B., 1956b. Concept of general and specific combining ability in relation to diallel crossing systems. Austral. J. Biol. Sci. 9: 463–493.Google Scholar
  8. Hayman, B. I., 1954a. The analysis of variance of diallel crosses. Biometrics 10: 235–244.Google Scholar
  9. Hayman, B. I., 1954b. The theory and analysis of diallel crosses. Genetics 39: 789–809.Google Scholar
  10. Jinks, J. L., 1954. The analysis of continuous variation in a diallel cross ofNicotiana rustica varieties. Genetics 39: 767–788.Google Scholar
  11. Kronstad, W. E. &Foote, W. H., 1964. General and specific combining ability estimated in winter wheat. Crop Sci. 4: 616–619.Google Scholar
  12. Lupton, F. G. H., 1961. Studies in the breeding of self-pollinating cereals. III. Further studies in cross prediction. Euphytica 10: 209–224.Google Scholar
  13. Quinlan, J. D. &Sagar, G. R., 1962. An autoradiographic study of the movement of14C-labelled assimilates in the developing wheat plant. Weed Res. 2: 264–273.Google Scholar
  14. Silva, W. H. de, 1961. Studies in the crop physiology of wheat. Thesis, Univ. of Wales.Google Scholar
  15. Stoy, V., 1963. The translocation of14C-labelled photosynthetic products from the leaf to the ear in wheat. Physiol. Pl. 16: 851–866.Google Scholar
  16. Thorne, G. N., 1962. Effect of applying nitrogen to cereals in the spring or at ear emergence. J. agric. Sci. (Camb.) 58: 89–96.Google Scholar
  17. Thorne, G. N., 1963. Varietal differences in photosynthesis of ears and leaves of barley. Ann. Bot. (N.S.) 27: 155–174.Google Scholar
  18. Thorne, G. N., 1965. Photosynthesis of ears and flag leaves of wheat and barley. Ann. Bot. (N.S.) 29: 317–329.Google Scholar
  19. Thorne, G. N., 1966. Physiological aspects of grain yield in cereals. In: F. L. Milthorpe & J. D. Ivins (Editors), The growth of cereals and grasses. Butterworth, London, pp. 88–105.Google Scholar
  20. Voldeng, H. D. &Simpson, G. M., 1967. Leaf area as an indicator of potential grain yield in wheat. Can. J. Pl. Sci. 47: 359–365.Google Scholar
  21. Walton, P. D., 1969. The inheritance of morphological characters associated with yield in spring wheat. Can. J. Pl. Sci. 49: 587–596.Google Scholar
  22. Watson, D. J., 1952. The physiological basis of variation in yield. Adv. Agron. 4: 101–145.Google Scholar
  23. Whitehouse, R. N. H., Thompson, J. B. &Valle Ribeiro, M. A. M., 1958. Studies on the breeding of self-pollinating cereals. II. The use of a diallel cross analysis in yield prediction. Euphytica 7: 147–169.CrossRefGoogle Scholar

Copyright information

© Kluwer Academic Publisher 1970

Authors and Affiliations

  • P. Hsu
    • 1
  • P. D. Walton
    • 1
  1. 1.Plant Science DepartmentUniversity of AlbertaEdmontonCanada

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