Researchers tested the sensitivity of ten Bangladeshi wheat cultivars to various levels of ozone by exposing them to different concentrations over set periods, measuring several growth metrics like dry weight and chlorophyll content.
Results showed that ozone exposure led to reduced shoot biomass, chlorophyll levels, and leaf greenness across most cultivars, with Akbar being the most sensitive and Kanchan the least.
The study found that visible leaf injury and the chlorophyll b/a ratio were key indicators of ozone sensitivity, while the timing of cultivar breeding showed no correlation with ozone tolerance.