Water, Air, and Soil Pollution

, Volume 18, Issue 4, pp 449–454 | Cite as

Effect of ozone and sulphur dioxide pollutants separately and in mixture on chlorophyll and carotenoid pigments ofOryza sativa

  • Madhoolika Agrawal
  • P. K. Nandi
  • D. N. Rao


Exposure of rice plants to low concentrations of O3 and SO2 singly and in combination showed foliar injury of different levels. The maximum leaf injury was noted in case of O3+SO2 treated plants and the minimum in O3 treated ones. Also the reductions in chlorophylla,b and total chlorophyll and carotenoid contents in leaves exposed to O3+SO2 mixtures were higher than the reduction noted in case of each individual pollutant. Thus the results suggest a synergism existing between O3 and SO2 regarding plant injury, especially with respect to chlorophyll and carotenoid contents of rice (Oryza sativa).


Waste Water Chlorophyll Ozone Water Pollution Carotenoid 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© D. Reidel Publishing Co. 1982

Authors and Affiliations

  • Madhoolika Agrawal
    • 1
  • P. K. Nandi
    • 1
  • D. N. Rao
    • 1
  1. 1.Centre of Advanced study in Botany, Dept. of BotanyBanaras Hindu UniversityVaranasiIndia

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