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Effects of water deficit on photosynthetic rate and osmotic adjustment in tetraploid wheats

Abstract

Osmotic adjustment, accumulation of soluble saccharides, and photosynthetic gas exchange were studied in five durum wheat (Triticum turgidum L. var. durum) and one wild emmer wheat (Triticum turgidum L. var. dicoccoïdes) cultivars of contrasting drought tolerance and yield stability. Soil water contents (SWC) were 100, 31, 20, and 12 % of maximum capillary capacity. Under mild water stress (SWC 31 to 20 %), osmotic adjustment capacity and high accumulation of saccharides were found in cv. Cham1, a high yielding and drought tolerant cultivar, and in var. dicoccoïdes, while lowest values were noted in the durum wheat landraces Oued-Zenati and Jennah-Khotifa. Under more severe water stress (SWC 12 %), the cv. Cham1 maintained higher net photosynthetic rate (PN) than other genotypes. The observed changes in the ratio intercellular/ambient CO2 concentration (ci/ca) indicated that under mild and severe water stress, the decrease in PN was mainly due to stomatal and non-stomatal factors, respectively.

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References

  1. Ackerson, R.C., Hebert, R.R.: Osmoregulation in cotton in response to water stress. I. Alterations in photosynthesis, leaf conductance, translocation, and ultrastructure.-Plant Physiol. 67: 484–488, 1981.

    Google Scholar 

  2. Al-Hakimi, A., Monneveux, P.: Variation of some morphophysiological traits of drought tolerance in tetraploid wheats.-In: Damania, A.B. (ed.): Biodiversity and Wheat Improvement. Pp. 199–216. John Wiley and Sons, Chichester New York-Brisbane-Toronto-Singapore 1993.

    Google Scholar 

  3. Al-Hakimi, A., Monneveux, P., Galiba, G.: Soluble sugars, proline, and relative water content (RWC) as traits for improving drought tolerance and divergent selection for RWC from T. polonicum into T. durum.-J. Genet. Breed. 49: 237–244, 1995.

    Google Scholar 

  4. Ali-Dib, T., Monneveux, P.: Adaptation à la sécheresse et notion d'idéotype chez le blé dur. I. Caractères morphologiques d'enracinement.-Agronomie 12: 371–379, 1992.

    Google Scholar 

  5. Ali-Dib, T., Monneveux, P., Araus, J.L.: Breeding durum wheat for drought tolerance: Analytical, synthetical approaches, and their connections.-In: Panayotov, I., Pavlova, S. (ed.). Proceedings of International Sympoisum Wheat Breeding — Prospects and Future Approaches. Pp. 224–240. Agricultural Academy Bulgaria, Albena 1990.

    Google Scholar 

  6. Barrs, H.: Determination of water deficit in plants tissues.-In: Kozlowski, T. (ed.): Water Deficit and Plant Growth. Pp. 235–368. Academy Press, New York 1968.

    Google Scholar 

  7. Begg, J.E., Turner, N.C.: Crop water deficits.-Adv. Agron. 28: 161–217, 1976.

    Google Scholar 

  8. Berkowitz, G.A.: Chloroplast acclimation to low osmotic potential.-Plant Cell Rep. 6: 208–211, 1987.

    Google Scholar 

  9. Bichler, K., Migge, A., Fock, H.P.: The role of malate dehydrogenase in dissipating excess energy under water stress in two wheat species.-Photosynthetica 32: 431–438, 1996.

    Google Scholar 

  10. Bradford, K.J., Hsiao, T.C.: Physiological responses to moderate water stress.-In: Lange, O.L., Nobel, P.S., Osmond, C.B., Ziegler, H. (ed.): Physiological Plant Ecology II. Pp. 263–324. Springer-Verlag, Berlin-Heidelberg-New York 1982.

    Google Scholar 

  11. Conroy, J.P., Virgona, J.M., Smillie, R.M., Barlow, E.W.: Influence of drought acclimation and CO2 enrichment on osmotic adjustment and chlorophyll a fluorescence of sunlower during drought.-Plant Physiol. 86: 1108–1115, 1988.

    Google Scholar 

  12. Crowe, J.H., Carpenter, J.E., Crowe, L.M., Anchrologuy, T.J.: Are freezing and dehydration similar stress vectors? A comparison of modes of interaction of stabilizing solutes with biomolecules-Cryobiology 27: 219–231, 1990.

    Google Scholar 

  13. Farquhar, G.D., Sharkey, T.D.: Stomatal conductance and photosynthesis.-Annu. Rev. Plant Physiol. 33: 317–345, 1982.

    Google Scholar 

  14. Girma, F.S., Krieg, D.R.: Osmotic adjustment in sorghum II. Relationship to gas exchange rates.-Plant Physiol. 99: 583–588. 1992.

    Google Scholar 

  15. Havaux, M., Ernez, M., Lannoye, R.: Sélection de variétés de blé dur (Triticum durum Desf.) et de blé tendre (Triticum aestivum L.) adaptées à la sécheresse par la mesure de l'extinction de la fluorescence de la chlorophylle in vivo.-Agronomie 8: 193–199, 1988.

    Google Scholar 

  16. Hsiao, T.C., Acevedo, E., Fereres, E., Henderson, D.W.: Water stress, growth and osmotic adjustment.-Phil. Trans. roy. Soc. London B 273: 479–500, 1976.

    Google Scholar 

  17. Kameli, A., Lösel, D.M.: Carbohydrates and water status in wheat plants under water stress.-New Phytol. 125: 609–614, 1993.

    Google Scholar 

  18. Kameli, A., Lösel, D.M.: Contribution of carbohydrates and other solutes to osmotic adjustment in wheat leaves under water stress.-J. Plant Physiol. 145: 363–366, 1995.

    Google Scholar 

  19. Ludlow, M.M., Chu, A.C.P., Clements, R.T., Kerslake, R.G.: Adaptation of species of centrosema to water stress.-Aust. J. Plant Physiol. 10: 119–130, 1983.

    Google Scholar 

  20. Ludlow, M.M., Fisher, M.J., Wilson, J.R.: Stomatal adjustment to water deficits in three tropical grasses and a tropical legume grown in controlled conditions and in the field.-Aust. J. Plant Physiol. 12: 131–149, 1985.

    Google Scholar 

  21. Martin, B., Rilling, C.: Gas exchange of water-stressed wheat leaves and leaves with simulated patchy photosynthesis.-In: Mathis, P. (ed.): Photosynthesis: from Light to Biosphere. Vol. IV. Pp. 557–560. Kluwer Acad. Publishers, Dordrecht-Boston-London 1995.

    Google Scholar 

  22. Meziani, L., Bamoun, A., Hamou, N., Brinis, L., Monneveux, P.: Essai de définition des caractères d'adaptation du blé dur dans différentes zones agroclimatiques de l'Algérie.-In Monneveux, P., Bensalem, M. (ed.): Tolérance à la Sècheresse des Céréales en Zones Méditerranéennes. Diversité et Amélioration Variétale. Pp. 191–203. INRA, Paris 1992.

    Google Scholar 

  23. Monneveux, P., Nemmar, M.: Contribution à l'étude de la resistance à la sécheresse chez le blé tendre (Triticum aestivum L.) et chez le blé dur (Triticum durum Desf.): étude de l'accumulation de la prolinc au cours du cycle de développement.-Agronomic 6: 583–590, 1986.

    Google Scholar 

  24. Morgan, J.M., Hare, R.A., Fletcher, R.J.: Genetic variation in osmoregulation in bread and durum wheat and its relationship to grain yields in a range of field environments.-Aust. J. agr. Res. 37: 449–457, 1986.

    Google Scholar 

  25. Munns, R.: Why measure osmotic adjustment?-Aust. J. Plant Physiol. 15: 717–726, 1988.

    Google Scholar 

  26. Pecceti, L., Annicchiarico, P.: Grain yield and quality of durum wheat landraces in dry mediterranean region of northern Syria.-Plant Breed. 110: 243–249, 1993.

    Google Scholar 

  27. Premachandra, G.S., Saneoka, H., Fujita, K., Ogata, S.: Osmotic adjustment and stomatal response to water deficits in maize.-J. exp. Bot. 43: 1451–1456, 1992.

    Google Scholar 

  28. Rascio, A., Platani, C., Scalfati, G., Tonti, A., Fonzo, N.D.: The accumulation of solutes and water binding strength in durum wheat.-Physiol. Plant. 90: 715–721, 1994.

    Google Scholar 

  29. Scholander, P.F., Hammel, E.A., Hemmingsen, E.D., Bradstreet, E.D.: Sap pressure in vascular plants.-Science 148: 339–346, 1964.

    Google Scholar 

  30. Schonfeld, M.A., Johnson, R.C., Carver, B.F., Mornhinweg, D.W.: Water relations in winter wheat as drought resistance indicators.-Crop Sci. 28: 528–531, 1988.

    Google Scholar 

  31. Schulze, E.-D.: Carbon dioxide and water vapor exchange in response to drought in the atmosphere and in the soil.-Annu. Rev. Plant Physiol. 37: 247–274, 1986.

    Google Scholar 

  32. Sharkey, T.D., Seemann, J.R.: Mild water stress effects on carbon-reduction-cycle intermediates, ribulose biphosphate carboxylase activity, and spatial homogeneity of photosynthesis in intact leaves.-Plant Physiol. 89: 1060–1065, 1989.

    Google Scholar 

  33. Shields, R., Burnett, W.: Determination of protein-bound carbohydrate in serum by a modified anthrone method.-Anal. Chem. 32: 885–886, 1960.

    Google Scholar 

  34. Turner, N.C.: Adaptation to water deficits: a changing perspective.-Aust. J. Plant Physiol. 13: 175–190, 1986.

    Google Scholar 

  35. Turner, N.C., Begg, J.E., Tonnet, M.L.: Osmotic adjustment of sorghum and sunflower crops in response to water deficits and its influence on the water potential at which stomata close.-Aust. J. Plant Physiol. 5: 597–608, 1978.

    Google Scholar 

  36. Turner, N.C, Jones, M.M.: Turgor maintenance by osmotic adjustment: A review and evaluation.-In: Turner, N.C., Kramer, P.J. (ed.): Adaptation of Plants to Water and High Temperature Stress. Pp. 87–103. Wiley and Sons, New York-Chichester-Brisbane-Toronto 1980.

    Google Scholar 

  37. Virgona, J.M., Barlow, E.W.R.: Drought stress induces changes in the non-structural carbohydrate composition of wheat stems.-Aust. J. Plant Physiol. 18: 239–247, 1991.

    Google Scholar 

  38. Wilson, J.R., Fisher, M.J., Schulze, E.D., Dolby, G.R., Ludlow, M.M.: Comparison between pressure-volume and low point-hygrometry techniques for determining water relation characteristics of grass and legume leaves.-Oecologia 41: 77–88, 1979.

    Google Scholar 

  39. Wright, G.C., Smith, R.C.G., Morgan, J.M.: Differences between two grain sorghum genotypes in adaptation to water stress. III. Physiological responses.-Aust. J. agr. Res. 34: 637–651, 1983.

    Google Scholar 

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Rekika, D., Nachit, M., Araus, J. et al. Effects of water deficit on photosynthetic rate and osmotic adjustment in tetraploid wheats. Photosynthetica 35, 129–138 (1998). https://doi.org/10.1023/A:1006890319282

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  • drought tolerance
  • durum wheat
  • intercellular CO2 concentration
  • leaf water status
  • Triticum
  • water stress
  • wild emmer wheat