Effects of Botrytis and ozone on bracts and flowers of poinsettia cultivars

Journal Article · Fri Sep 01 04:00:00 EDT 1972 · Plant Dis.; (United States)

OSTI ID:5011204

Manning, W J; Feder, W A; Perkins, I

Variability, ranging from complete resistance to extensive susceptibility, was observed when flowers and bracts of 14 cultivars of poinsettia were inoculated with spores of Botrytis cinerea. Flowers and bracts were not visibly injured by exposure to ozone levels up to 45 pphm. Ozone did not have significant fungicidal effects, as measured by visual disease incidence following incubation, when inoculated flowers and bracts were exposed to ozone at 15, 25, 35, and 45 pphm ozone for 4 hr prior to incubation. 8 references, 1 table.

• Research Organization: Univ. of Massachusetts, Waltham
• OSTI ID: 5011204
• Journal Information: Plant Dis.; (United States), Journal Name: Plant Dis.; (United States) Vol. 56:9; ISSN PLDID
• Country of Publication: United States
• Language: English

Related Subjects

560303* -- Chemicals Metabolism & Toxicology-- Plants-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
BIOLOGICAL EFFECTS
DOSE-RESPONSE RELATIONSHIPS
ORNAMENTAL PLANTS
OZONE
PLANT DISEASES
PLANTS
RESPONSE MODIFYING FACTORS
SENSITIVITY
VARIATIONS