Effect of low-level ozone fumigations on crown rust of oats

Journal Article · Sun Feb 01 00:00:00 EST 1970 · Phytopathology; (United States)

DOI:https://doi.org/10.1094/Phyto-60-252· OSTI ID:5762745

Heagle, A S

Exposure of crown rust differential varieties of Avena spp. to 10 pphm ozone for 6 hr in the light for 10 days after infection with Puccinia coronata significantly reduced the growth of uredia. Urediospores produced on the plants exposed to ozone germinated as well, produced as many appressoria, and resulted in as much infection as spores produced on unexposed leaves. Exposure on dry leaves to 20 pphm ozone for 3 hr for 1-5 days did not affect urediospore germination, appressoria formation, or penetration. 9 references, 1 figure, 3 tables.

• Research Organization: North Carolina State Univ., Raleigh
• OSTI ID: 5762745
• Journal Information: Phytopathology; (United States), Vol. 60:2
• Country of Publication: United States
• Language: English

Related Subjects

63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
FUNGI
PLANT GROWTH
OZONE
BIOLOGICAL EFFECTS
INHIBITION
ACUTE EXPOSURE
EXPERIMENTAL DATA
PLANT DISEASES
DATA
GROWTH
INFORMATION
NUMERICAL DATA
PLANTS
560303* - Chemicals Metabolism & Toxicology- Plants- (-1987)