Paper Title :Effect of Pollution on Relative Water Content in Temperate Species Growing along National Highway 5 in Himachal Pradesh
Author :Bhavika Sharma, Sandeep Sharma, S.K. Bhardwaj
Article Citation :Bhavika Sharma ,Sandeep Sharma ,S.K. Bhardwaj ,
(2017 ) " Effect of Pollution on Relative Water Content in Temperate Species Growing along National Highway 5 in Himachal Pradesh " ,
International Journal of Advances in Science, Engineering and Technology(IJASEAT) ,
pp. 15-18,
Volume-5, Issue-3, Spl. Iss-1
Abstract : Exposure of evergreen plants to air pollutants creates many changes in physiological and biochemical parameters.
High water content in plants ensures the maintenance of the physiological balance under stresses such as air pollution, and
the relative water content (RWC) is usually associated with the protoplasmic permeability of cells, which is involved in the
loss of water and dissolved nutrients in plants, resulting in senescence of leaves. RWC has been found to vary with air
pollution. In the present study, the species-wise variation in relative water content of commonly growing plant species along
the National Highway 5 was studied and it was observed that RWC varied significantly in different species. Maximum RWC
was observed in case of Hypericum oblongifolium while the least was observed in Quercus leucotrichophora. The distancewise
variation in relative water content of species growing along the National Highway 5 revealed that distance from the
National Highway had significant effect on RWC. Maximum RWC was observed in case of Hypericum oblongifolium
(84.83%) at the distance >100 m while minimum RWC was observed in case of Quercus leucotrichophora (64.79%) at the
distance 0-5 m from the National Highway. RWC was found to be highest at the distance >100 m from the National
Highway in all the species except Grevillea robusta; the difference, however, was not significant. Since Grevillea robusta
showed an increase in RWC with increase in pollution, it can thus be suggested for growing along the highways for green
belt development.
Keywords - Pollution, Relative Water Content, Temperate species
Type : Research paper
Published : Volume-5, Issue-3, Spl. Iss-1
DOIONLINE NO - IJASEAT-IRAJ-DOIONLINE-9035
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Published on 2017-10-21 |
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