Correlations between air pollution injury and certain agronomic, chemical, and physical characteristics of Maryland tobacco
Thirty-six Maryland tobacco (Nicotiana tabacum L.) entries including eight parent cultivars (Catterton, Wilson, Gertz, Moore, Maryland 59, Maryland 10, Maryland 64, and Maryland 609) and 28 hybrids (obtained by crossing the eight parent cultivars in all possible combinations including reciprocals) were grown at three locations with differing soil types in Maryland in 1972. The plants were scored for air pollution injury (weather fleck) at maturity. Plants grown on deep sandy soils and showing drought stress symptoms exhibited less injury from air pollution than plants grown on sandy loam or silt loam soils. Correlations were made between weather fleck intensity and eleven agronomic, chemical, and physical characteristics of the tobacco. Reductions in yield, average price, and value of the cured tobacco were associated with increases in weather fleck intensity at two of the three locations. Also, taller plants and wider internode lengths were associated with increased fleck intensity at two of the three locations. Days to flower, filling capacity, and burn duration were associated with increased fleck intensity in a positive manner and total alkaloid contents in a negative manner at single locations only. Correlation values for either total nitrogen contents or leaves per plant with weather fleck intensity were nonsignificant at all locations.
- Research Organization:
- Univ. of Wisconsin, Madison
- OSTI ID:
- 6594682
- Journal Information:
- J. Environ. Qual.; (United States), Journal Name: J. Environ. Qual.; (United States) Vol. 5:4; ISSN JEVQA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
560303* -- Chemicals Metabolism & Toxicology-- Plants-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AIR POLLUTION
BIOLOGICAL STRESS
FEDERAL REGION III
GEOGRAPHICAL VARIATIONS
GROWTH
INJURIES
MARYLAND
NICOTIANA
NORTH AMERICA
PLANT GROWTH
PLANTS
POLLUTION
PRICES
PRODUCTIVITY
SOILS
USA
VARIATIONS