Photosynthetica, 2007 (vol. 45), issue 3

Photosynthetica 2007, 45(3):472-476 | DOI: 10.1007/s11099-007-0080-7

Effects of water deficit and selenium on common buckwheat (Fagopyrum esculentum Moench.) plants

N. Tadina1, M. Germ2, I. Kreft3, B. Breznik1, A. Gaberščik1
1 Department of Biology, Biotechnical Faculty, Ljubljana, Slovenia
2 National Institute of Biology, Ljubljana, Slovenia
3 Department of Agronomy, Biotechnical Faculty, Ljubljana, Slovenia

Two cultivars of common buckwheat (Fagopyrum esculentum), Pyra and Siva, were exposed to three treatments: water deficit (WD), foliar spraying by selenium (as Na2SeO4) (Se), and the combination of both. In WD-plants the stomatal conductance (g s) was significantly lower, while WD+Se-plants of Siva had significantly higher g s. None of the treatments resulted in significant differences of potential photochemical efficiency of photosystem 2 (PS2). A significantly higher actual photochemical efficiency of PS2 was obtained in Siva WD-plants and in Pyra Se-and WD-plants which was possibly due to improvement of plant water management during treatment. A significant interaction was observed between the effects of WD and Se on respiratory potential in Pyra. WD, Se, and the WD+Se combination resulted in shorter Pyra and Siva plants, with a reduced number of nodes. WD slightly negatively affected the yield per plant. The yield was highest in plants exposed to Se only. In Siva the number of seeds was triple while the average seed mass remained unchanged.

Keywords: photochemical efficiency; photosystem 2; root; seed number and yield; shoot; stomatal conductance

Received: November 23, 2006; Accepted: February 8, 2007; Published: September 1, 2007Show citation

ACS AIP APA ASA Harvard Chicago IEEE ISO690 MLA NLM Turabian Vancouver
Tadina, N., Germ, M., Kreft, I., Breznik, B., & Gaberščik, A. (2007). Effects of water deficit and selenium on common buckwheat (Fagopyrum esculentum Moench.) plants. Photosynthetica, 45(3), 472-476. doi: 10.1007/s11099-007-0080-7.
Download citation
  • BibTeX (.bib)
  • Bookends (.ris)
  • EasyBib (.ris)
  • EndNote (.enw)
  • EndNote 8 (.xml)
  • ISI WoS (.isi)
  • Medlars (.medlars)
  • Mendeley (.ris)
  • MODS (.xml)
  • Papers (.ris)
  • RefWorks (.txt)
  • RefManager (.ris)
  • RIS (.ris)
  • MS Word (.xml)
  • Zotero (.ris)

    • Open full article

    References

    1. Albritton, D.L., Meira Filho, L.G.: Technical summary of the working group I report.-In: Houghton, J.T., Ding, Y., Griggs, D.J., Noguer, M., van der Linden, P.J., Dai, X., Maskell, K., Johnson, C.A. (ed.): Climate Change 2001: the Scientific Basis. Pp. 71-73. Cambridge University Press, Cambridge 2001.
    2. Björkman, O., Demmig, B.: Photon yield of O2 evolution and chlorophyll fluorescence characteristics at 77 K among vascular plants of diverse origins.-Planta 170: 489-504, 1987. Go to original source...
    3. Breznik, B., Germ, M., Gaberščik, A., Kreft, I.: Combined effects of elevated UV-B radiation and the addition of selenium on common (Fagopyrum esculentum Moench) and tartary [Fagopyrum tataricum (L.) Gaertn.] buckwheat.-Photosynthetica 43: 583-589, 2005. Go to original source...
    4. Chaves, M.M., Pereira, J.S., Maroco, J., Rodrigues, M.L., Ricardo, C.P.P., Osório, M.L., Carvalho, I., Faria, T., Pinheiro, C.: How plants cope with water stress in the field? Photosynthesis and growth.-Ann. Bot. 89: 907-916, 2002. Go to original source...
    5. Desclaux, D., Huynh, T.-T., Roumet, P.: Identification of soybean plant characteristics that indicate the timing of drought stress.-Crop Sci. 40: 716-722, 2000. Go to original source...
    6. Egert, M., Tevini, M.: Influence of drought on some physiological parameters symptomatic for oxidative stress in leaves of chives (Allium schoenoprasum).-Environ. exp. Bot. 48: 43-49, 2002. Go to original source...
    7. Germ, M., Kreft, I., Osvald, J.: Influence of UV-B exclusion and selenium treatment on photochemical efficiency of photosystem II, yield and respiratory potential in pumpkins (Cucurbita pepo L.).-Plant Physiol. Biochem. 43: 445-448, 2005. Go to original source...
    8. Halbrecq, B., Romedenne, P., Ledent, J.F.: Evolution of flowering, ripening and seed set in buckwheat (Fagopyrum esculentum Moench): quantitative analysis.-Eur. J. Agron. 23: 209-224, 2005. Go to original source...
    9. Hartikainen, H., Xue, T., Piironen, V.: Selenium as an antioxidant and pro-oxidant in ryegrass.-Plant Soil 225: 193-200, 2000. Go to original source...
    10. Hu, Q.H., Xu, J., Pang, G.X.: Effect of selenium on the yield and quality of green tea leaves harvested in early spring.-J. agr. Food Chem. 51: 3379-3381, 2003. Go to original source...
    11. Kawakami, J., Iwama, K., Jitsuyama, Y.: Soil water stress and the growth and yield of potato plants grown from microtubers and conventional seed tubers.-Field Crops Res. 162: 903-911, 2006. Go to original source...
    12. Kenner, R.A., Ahmed, S.I.: Measurements of electron transport activities in marine phytoplankton.-Mar. Biol. 33: 119-127, 1975. Go to original source...
    13. Kuznetsov, Vas.V., Kholodova, V.P., Kuznetsov, V.V., Yagodin, B.A.: Selenium regulates the water status of plants exposed to drought.-Dokl. biol. Nauk 390: 266-268, 2003. Go to original source...
    14. Larcher, W., Physiological Plant Ecology. Ecophysiology and Stress Physiology in Functional Groups.-Springer-Verlag, Berlin-Heidelberg-New York 2001.
    15. Mazej, Z., Gaberščik, A.: ETS-activity as a measure of vitality of different macrophyte species.-Phyton 39: 181-185, 1999.
    16. McKersie, B.D., Leshem, Y.Y.: Stress and Stress Coping in Cultivated Plants.-Kluwer Academic Publ., Dordrecht 1994. Go to original source...
    17. Packard, T.T.: The measurement of respiratory electron-transport activity in marine phytoplankton.-J. mar. Res. 29: 235-243, 1971.
    18. Schreiber, U., Bilger, W., Neubauer, C.: Chlorophyll fluorescence as a nonintrusive indicator for rapid assessment of in vivo photosynthesis.-In: Schulze, E.-D., Caldwell, M.M. (ed.): Ecophysiology of Photosynthesis. Pp. 49-70. Springer-Verlag, Berlin-Heidelberg-New York 1995. Go to original source...
    19. Smrkolj, P., Germ, M., Kreft, I., Stibilj, V.: Respiratory potential and Se compounds in pea (Pisum sativum L.) plants grown from Se enriched seeds.-J. exp. Bot. 14: 3595-3600, 2006. Go to original source...
    20. Tapiero, H., Townsend, D.M., Tew, K.D.: Dossier: Oxidative stress pathologies and antioxidants: The antioxidant role of selenium and seleno-compounds.-Biomed. Pharmacotherapy 57: 134-144, 2003. Go to original source...
    21. Terry, N., Zayed, A.M., de Souza, M.P., Tarun, A.S.: Selenium in higher plants.-Annu. Rev. Plant Physiol. Plant mol. Biol. 51: 401-423, 2000. Go to original source...
    22. Turakainen, M., Hartikainen, H., Seppänen, M.M.: Effects of selenium treatments on potato (Solanum tuberosum) growth and concentrations of soluble sugars and starch.-J. agr. Food Chem. 25: 5378-5382, 2004. Go to original source...
    23. Xue, T.L., Hartikainen, H.: Association of antioxidative enzymes with the synergistic effect of selenium and UV irradiation in enhancing plant growth.-Agr. Food Sci. Finland 9: 177-186, 2000.
    24. Xue, T., Hartikainen, H., Piironen, V.: Antioxidative and growth-promoting effect of selenium in senescing lettuce.-Plant Soil 237: 55-61, 2001. Go to original source...

    Return to the content