Which crops are especially sensitive to atmospheric ozone?
I could find a relatively recent review by Mills et al. (2007) that lists sensitivity to ozone for several crops. Among the most sensitive were (table 1)


Watermelons (albeit with very few data points used)
Pulses
Cotton
Wheat


While the most resistant crops were


Barley
Fruits (Plums and Strawberries)
Broccoli


The measure for ozone used in this review is AOT40, which accounts for accumulated ozone levels over 40ppbV within the time from 8AM to 8PM.