Presenter: Ms. Vaishali Sharma

B.sc agriculture 2nd yr RGSC,BHU

Why we are concerned?Plant Health IssuesInjury 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.

Conclusion

Air pollution negatively affects the yield and quality of crops

Sensitivity of crops differs among species and cultivarsMeteorological conditions during crop growing season

affect the degree of negative effects on growth and yield of crops

Ozone poses the greatest threat to agriculturePlants also differ in their response to different air

pollutant combinations

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

Thanks…..