This presentation is mainly based on the changes that take place in Agriculture due to changes in the climatic condition.

1. Presenter: Ms. Vaishali
Sharma
B.sc agriculture 2nd yr
RGSC,BHU

4. Why we are concerned?
 Plant Health Issues
 Injury to foliage may be visible in a short time and
appear as necrotic lesions (dead tissue), or it can
develop slowly as a yellowing or chlorosis of the leaf.
 There may be a reduction in growth of various
portions of a plant. Plants may be killed outright, but
they usually do not succumb until they have suffered
recurrent injury.

23. Conclusion
 Air pollution negatively affects the yield and quality of
crops
 Sensitivity of crops differs among species and cultivars
 Meteorological conditions during crop growing season
affect the degree of negative effects on growth and yield of
crops
 Ozone poses the greatest threat to agriculture
 Plants also differ in their response to different air pollutant
combinations


25. Recommendations
 Expand air pollutant monitoring networks into
agricultural and forested areas
 Need to establish yield response relationships
applicable to different environmental conditions
 Develop bioindicator protocols for impact evaluation
 Explore high and low risk zones of air pollution impact
in different regions
 Establish realistic air quality guidelines for protecting
vegetation including crops

26. Thanks…..