Advertisement

Cereal Research Communications

, Volume 36, Issue 1, pp 65–76 | Cite as

Awns and Flag Leaf Contribution Towards Grain Yield in Spring Wheat (Triticum aestivum L.)

  • I. Khaliq
  • A. Irshad
  • M. AhsanEmail author
Article

Abstract

Contribution to yield of cereals has traditionally been studied using yield and various yield components, thus neglecting the role of other organs such as ear awns and flag leaf. Here, we studied the effects of genotypes on the photosynthetic activity of the flag leaf blade and the ear awns of spring wheat. The parameters related to the photosynthetic activity were analyzed in relation to the grain yield and various yield components at maturity. In the present study, ten wheat varieties/lines were tested to find out the effects of flag leaf and ear awns detachment on grain yield. There was much genetic variability among different varieties/lines for different traits. Awns detachment exhibited less effect on yield and yield related characters as compared to flag leaf detachment, while detachment of both had more significant effects than individual treatment. Flag leaf area and some other components showed positive and significant correlation with grain yield. Which suggested that flag leaf + awns might be used a morphological marker, while selecting wheat varieties/lines for good photosynthetic activity and high yield.

Keywords

wheat associations morphological marker ear awns flag leaf area 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Abbad, H., Jaafari, S.E.L., Bort, J., Araus, J.L. 2003. Comparison of flag leaf and ear photosynthesis with biomass and grain yield of durum wheat under various water conditions and genotypes. Agronomie 24:19–28.CrossRefGoogle Scholar
  2. Ahmed, N., Khaliq, I., Chowdhry, M.A., Ahsan, M., Ibrahim, M., Maekqwq, M. 2004. Heritability estimates of some flag leaf characters in wheat. Caderno de Pesquisa Ser. Bio., Santa Cruz do Sul. 16:131–141.Google Scholar
  3. Anonymous 2005. Statistics-Agriculture, Food and Agriculture Organization of United Nations.Google Scholar
  4. Blum, A. 1985. Photosynthesis and transpiration in leaves and ears of wheat and barley varieties, J. Exp. Botany 36:432–440.CrossRefGoogle Scholar
  5. Chowdhry, M.A., Mahmood, N., Rashad, T.R., Khaliq, I. 1999. Effect of leaf area removal on grain yield and its components in spring wheat. Rachis 18:75–78.Google Scholar
  6. Das, N.R., Mukherjee, N.N. 1991. Grain yield contribution by leaf and awn in dwarf wheat (Triticum aestivum L.) after rice (Oryza sativa L.). Environment and Ecology 9:33–36Google Scholar
  7. Duncan, D.B. 1955. Multiple range and Multiple F. Test. Biometrics 11:1–42.CrossRefGoogle Scholar
  8. Jedynski, S. 2001. Influence of awns on seed size in spring wheat. Grupy problemowej hodowli Pszenicy. Proceedings of a symposium, Zakopane, Poland, pp. 30–31. Biuletyn-Instytutu-Hodowli-i-Aklimatyzaci-Roslin, 16:211–219.Google Scholar
  9. Johnson, R.R., Frey, N.M., Moss, D.N. 1974. Effect of water stress on photosynthesis and transpiration of flag leaves and spikes of barley and wheat. Crop Science 14:728–731.CrossRefGoogle Scholar
  10. Khaliq, I., Abbas, M., Rahim, M.A. 2001. Association of morphological characters with economic yield in spring wheat (Triticum aestivum L.). Online J. of Biol. Science 1:432–433.CrossRefGoogle Scholar
  11. Mahmood, N., Chowdhry, M.A. 1997. Removal of green Photo-synthetic structures and their effect on some yield parameters in bread wheat. Wheat Information Service 85:14–20.Google Scholar
  12. Mahmood, N. 1989. Association analysis for various agronomic traits in wheat (Triticum aestivum L.) under normal and stress conditions. MSc. (Hons) Agriculture, Thesis, Deptt., Pl. Br. Genet., Univ. Agric. Faisalabad.Google Scholar
  13. Narwal, N.K., Verma, P.K., Narwal, M.S. 1999. Genetic variability, correlation and path-coefficient analysis in bread wheat in two climatic zones of Haryana. Agri. Sci. Digest Karnal 19:73–76.Google Scholar
  14. Olugbemi, L.B., Bingham, J., Austin, R.B. 1976. Ear and flag leaf photosynthesis of awned and awnless Triticum species. Ann. Appl. Biology 84:231–240.CrossRefGoogle Scholar
  15. Singh, S.B., Singh, T.B. 2001. Correlation and path analysis in common wheat (Triticum aestivum L.) under light texture soil. Res. Crops 2:99–101.Google Scholar
  16. Slafer, G.A., Satorre, E.H., Andrade, F.H. 1994. Increases in grain yield in bread wheat from breeding and associated physiological changes. In: Slafer, G.A. (ed.), Genetic Improvement of Field Crops. Marcel Dekker Inc., New York, pp. 1–68.Google Scholar
  17. Sorkhi, L.B., Yazdi, S.B., Abd-Mishani, C., Gerami, A. 1998. Study on the relationship between grain yield and quality traits in 500 bread wheat lines using factor analysis. Iranian J. of Agric. Science 29:363–378.Google Scholar
  18. Steel, R.G.D., Torrie, J.H. 1980. Principles and Procedures of Statistics: A biometrical approach. 2nd Edition, McGraw Hill Book Co., New York, USA.Google Scholar
  19. Voltas, J., Romagosa, I., Lafarga, A., Armesto, A.P., Sombrero, A., Araus, J.L. 1999. Genotype by environment interaction for grain yield in two-rowed barley grown under semiarid conditions. Eur. J. Agronomy 9:147–155.CrossRefGoogle Scholar

Copyright information

© Akadémiai Kiadó, Budapest 2008

Authors and Affiliations

  1. 1.Department of Plant Breeding and GeneticsUniversity of AgricultureFaisalabadPakistan

Personalised recommendations