Bioindicator Plants - Crops

sensitive varieties (cultivars) of watermelons, muskmelons, cucumbers, squash, snapbeans, potatoes, as well as other crops

Commonly used bioindicators for air pollutants

For Ozone:

  • Petunia (certain cultivars only)
  • Pinto Bean
  • Green Bean (cv. Bush Blue Lake 290)
  • Tobacco (cv. b el W-3)
  • White pine (certain strains only)
  • Watermelon (cv. Sugar Baby)

For PAN:

  • Pinto Bean
  • Petunia (some white-flowered cultivars)

For Fluorides

  • Iris
  • Ponderosa pine

For SO2:

  • Alfalfa
  • White pine (certain strains only)
  • Bean (cv. OSU 1604)
  • Summer crookneck squash
  • White birch

Source: Modification from Purdue Univ. Coop. Ext. Serv. Publication HO-195:
Using plants to monitor air pollution by J.E. Simon, M. Simini, and D.R. Decoteau. 1986