, Volume 33, Issue 3, pp 953–961 | Cite as

A comparison of yield and yield component selection in winter wheat

  • W. L. Alexander
  • E. L. Smith
  • C. Dhanasobhan


Three populations of winter wheat were formed by crossing Avrora to Sage, TAM W-101, and Danne. Approximately 10% of the F2 plants from these crosses were selected for high and low levels of number of tillers per plant, number of kernels per spike, 1000-kernel weight, and grain yield. Forty-eight solid seeded F3 lines obtained from the selected F2 plants were then selected for high and low expressions of yield components and grain yield. Realized heritabilities were estimated. Indirect responses of yield to yield component selection and direct response to selection for grain yield were measured. Heritabilities were low for tiller number, number of kernels per spike and kernel weights but were high or intermediate for grain yield when selection occurred in the F2 generation. When selection was practiced in the F3 generation, heritabilities for tiller number and yield were low, but were intermediate to high for number of kernels per spike and kernel weight and high heritabilities were found for kernel weight. Selection for kernel weight often increased grain yield; however, direct selection for grain yields was usually as effective.

Index words

Triticum aestivum L. wheat breeding indirect selection realized heritability 


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  1. Chowdhry A. R., M. Saleem & K. Alam, 1976. Relation between flag leaf, yield of grain and yield components in wheat. Expl. Agric. 12: 411–415.Google Scholar
  2. Falconer D. S., 1960. Introduction to quantitative genetics. The Ronald Press Co., New York.Google Scholar
  3. Grafius J. E., 1956. Components of yield in oats: A geometrical interpretation. Agron. J. 48: 419–423.Google Scholar
  4. Johnson V. A., J. W. Schmidt & W. Mekasha, 1966a. Comparison of yield components and agronomic characteristics of four winter wheat varieties differing in plant height. Agron. J. 58: 438–441.Google Scholar
  5. Johnson V. A., K. J. Biever, A. Haunold & J. W. Schmidt, 1966b. Inheritance of plant height, yield of grain, and other plant and seed characteristics in a cross of hard red winter wheat, Triticum aestivum L. Crop Sci. 6: 336–338.Google Scholar
  6. Ketata H., L. H. Edwards & E. L. Smith, 1976. Character association in a Centurk × Bezostaia 1 winter wheat cross. Cereal Res. Comm. 4: 23–32.Google Scholar
  7. Kronstad W. E. & W. H. Foote, 1964. General and specific combining ability estimates in winter wheat (Triticum aestivum Vill, Host). Crop Sci. 4: 616–619.Google Scholar
  8. McNeal F. H., C. O. Qualset, D. E. Baldridge; V. R. Stewart, 1978. Selection for yield and yield components in wheat. Crop Sci. 18: 795–799.Google Scholar
  9. Paroda R. S. & A. B. Joshi, 1970. Genetic architecture of yield and components of yield in wheat. Indian J. Genet. 30: 298–314.Google Scholar
  10. Sharma D. & S. S. Baghel, 1972. Plant breeding problems in maintaining high yield levels of wheat varieties and scope for shattering yield barriers in future—a review. JNKVV Res. J. 6: 63–71.Google Scholar
  11. Sharma D. & D. R. Knott, 1964. The inheritance of seed weight in a wheat cross. Can. J. Genet. Cytol. 6: 419–425.Google Scholar
  12. Sidwell, R. J., 1975. Heritability and interrelations of yield and yield-related traits in a hard red winter wheat cross (Triticum aestivum L.). Unpublished Ph.D. dissertation, Oklahoma State Univ. Stillwater.Google Scholar
  13. Sidwell R. J., E. L. Smith & R. W. McNew, 1976. Inheritance and interrelationships of grain yield and selected yield-related traits in a hard red winter wheat cross. Crop Sci. 16: 650–654.Google Scholar
  14. Smith E. L., 1976. The genetics of wheat architecture. Ann. Oklahoma Acad. Sci. 6: 117–132.Google Scholar
  15. Weibel D. E., 1956. Inheritance of quantitative characters in wheat. Iowa St. Col. J. Sci. 30: 450–451.Google Scholar
  16. Whan B. R., A. J. Rathgen & R. Knight, 1982. Response to selection for grain yield and harvest index in F2, F3 and F4 derived lines of two wheat crosses. Euphytica 31: 139–150.Google Scholar
  17. Woodworth C. M., 1931. Breeding for yield in crop plants. J. Am. Soc. Agron. 23: 388–395.Google Scholar

Copyright information

© Dr. H. Veenman en Zonen B.V 1984

Authors and Affiliations

  • W. L. Alexander
    • 1
  • E. L. Smith
    • 1
  • C. Dhanasobhan
    • 1
  1. 1.Department of AgronomyOklahoma State UniversityStillwaterUSA

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