biologia plantarum

International journal on Plant Life established by Bohumil Nìmec in 1959

Biologia plantarum 44:385-389, 2001 | DOI: 10.1023/A:1012498811945

Decreased Ultraviolet-B Radiation Alters the Vertical Biomass Distribution in Cocksfoot

E. Cayenberghs1, G. Deckmyn1, R. Ceulemans1
1 Research Group of Plant and Vegetation Ecology, Department of Biology, University of Antwerp UIA, Wilrijk, Belgium

A greenhouse experiment was conducted to investigate whether small differences in UV-B irradiance would lead to changes in competition between cocksfoot (Dactylis glomerata L. cv. Athos) and white clover (Trifolium repens L. cv. Mervi). Plants were grown in greenhouses covered with different thicknesses of UV-transmittant plexi (3 and 5 mm) resulting in 82 % and 88 % of ambient UV-B radiation. Aboveground biomass was harvested at 4-week intervals and the vertical distribution of biomass, leaf thickness and specific leaf area were determined. Tillering, stubble and root biomass and crop height were also measured. There was only one significant effect: at 88 % of ambient UV-B radiation a larger fraction of the biomass was present in the lower layers and a smaller fraction was present in the upper layers.

Keywords: Dactylis glomerata; growth parameters; Trifolium repens
Subjects: biomass distribution, vertical, UV-B radiation; clover; cocksfoot; competition in canopy, biomass distribution; Dactylis glomerata; Trifolium repens; ultraviolet-B radiation, biomass distribution

Published: September 1, 2001  Show citation

ACS AIP APA ASA Harvard Chicago IEEE ISO690 MLA NLM Turabian Vancouver
Cayenberghs, E., Deckmyn, G., & Ceulemans, R. (2001). Decreased Ultraviolet-B Radiation Alters the Vertical Biomass Distribution in Cocksfoot. Biologia plantarum44(3), 385-389. doi: 10.1023/A:1012498811945
Download citation

References

  1. Adamse, P., Britz, S.J.: Amelioration of UV-B damage under high irradiance. I: Role of photosynthesis.-Photochem. Photobiol. 56: 645-650, 1992. Go to original source...
  2. Adamse, P., Britz, S.J.: Rapid fluence-dependent responses to ultraviolet-B radiation in cucumber leaves: the role of UV-absorbing pigments in damage protection.-J. Plant Physiol. 148: 57-62, 1996. Go to original source...
  3. Allen, D.J., Nogués, S., Baker, N.R.: Ozone depletion and increased UV-B radiation: is there a real threat to photosynthesis?-J. exp. Bot. 49: 1775-178, 1998. Go to original source...
  4. Ambasht, N.K., Agrawal, M.: Influence of supplemental UV-B radiation on photosynthetic characteristics of rice plants.-Photosynthetica 34: 401-408, 1997. Go to original source...
  5. Barnes, P.W., Ballaré, C.L., Caldwell, M.M.: Photomorphogenic effects of UV-B radiation on plants: consequences for light competition.-J. Plant Physiol. 148: 15-20, 1996. Go to original source...
  6. Barnes, P.W., Maggard, S., Holman, S.R., Vergara, B.S.: Intraspecific variation in sensitivity to UV-B radiation in rice.-Crop Sci. 33: 1041-1046, 1993. Go to original source...
  7. Björn, L.O.: Effects of ozone depletion and increased UV-B on terrestrial ecosystems.-Int. J. environ. Stud. 51: 217-243, 1996. Go to original source...
  8. Bornmann, J.F., Vogelmann, T.C.: Effect of UV-B radiation on leaf optical properties measured with fibre optics.-J. exp. Bot. 42: 547-554, 1991. Go to original source...
  9. Caldwell, M.M.: Solar ultraviolet radiation and the growth and development of higher plants-In: Giese, A.C. (ed.): Photophysiology. Pp. 131-177. Academic Press, New York 1971. Go to original source...
  10. Caldwell, M.M., Bjorn, L.O., Bornman, J.F., Flint, S.D., Kulandaivelu, G., Teramura, A.H., Tevini, M.: Effects of increased solar ultraviolet radiation on terrestrial ecosystems.-J. Photochem. Photobiol. 46: 40-52, 1998. Go to original source...
  11. Day, T.A., Vogelmann, T.C., De Lucia, E.H.: Are some plant life forms more effective than others in screening out ultraviolet-B radiation?-Oecologia 92: 513-519, 1992. Go to original source...
  12. Deckmyn, G., Impens, I.: The ratio UV-B/photosyntetically active radiation (PAR) determines the sensitivity of rye to increased UV-B radiation.-Environ. exp. Bot. 37: 3-12, 1997. Go to original source...
  13. Deckmyn, G., Impens, I.: UV-B and PAR in a grass (Lolium perenne L.) canopy.-Plant Ecol. 41: 95-99, 1998. Go to original source...
  14. Deckmyn, G., Impens, I.: Seasonal responses of six Poaceae to differential levels of solar UV-B radiation.-Environ. exp. Bot. 41: 177-184, 1999. Go to original source...
  15. Deckmyn, G., Martens, C., Impens, I.: The importance of the ratio UV-B/photosynthetic active radiation (PAR) during leaf development as determining factor of plant sensitivity to increased UV-B irradiance: effects on growth, gas exchange and pigmentation of bean plants (Phaseolus vulgaris cv. Label).-Plant Cell Environ. 17: 295-301, 1994. Go to original source...
  16. Greenberg, B.M., Wilson, M.I., Gerhardt, K.E., Wilson, K.E.: Morphological and Physiological responses of Brassica napus to ultraviolet-B radiation: photomodification of ribulose-1,5-biphosphate carboxylase/oxygenase and potential acclimation processes.-J. Plant Physiol. 148: 78-85, 1996. Go to original source...
  17. Jenkins, G.I.: UV and blue light signal transduction in Arabidopsis.-Plant Cell Environ. 20: 773-778, 1997. Go to original source...
  18. Landry, L.G., Chapple, C.C. S., Last, R.L.: Arabidopsis mutants lacking phenolic sunscreens exhibit enhanced ultraviolet-B injury and oxidative damage.-J. Plant Physiol. 109: 1159-1166, 1995. Go to original source...
  19. Rozema, J., Van de Staaij, J., Björn, L.O., Caldwell, M.M.: UV-B as an environmental factor in plant life: stress and regulation.-Trees 12: 22-28, 1997. Go to original source...