Response of Three Runner-Type Peanut Cultivars to Flumioxazin

Field studies were conducted in 1999 and 2000 at Marianna and Gainesville, FL, to evaluate the response of three runner-type peanut cultivars, 'Georgia Green', 'C-99R', and 'MDR-98', to flumioxazin applied preemergence at 0, 71, 105, and 211 g/ha in a weed-free environm...

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Bibliographic Details
Published in:Weed technology 2003-01, Vol.17 (1), p.89-93
Main Authors: MAIN, Christopher L, DUCAR, Joyce Tredaway, BEN WHITTY, E, MACDONALD, Greg E
Format: Article
Language:English
Subjects:
Agricultural management
Biological and medical sciences
Crop science
Crops
Fundamental and applied biological sciences. Psychology
Growth retardation
Herbicides
Peanuts
Vegetation canopies
Weed control
Wheat
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Summary:Field studies were conducted in 1999 and 2000 at Marianna and Gainesville, FL, to evaluate the response of three runner-type peanut cultivars, 'Georgia Green', 'C-99R', and 'MDR-98', to flumioxazin applied preemergence at 0, 71, 105, and 211 g/ha in a weed-free environment. Peanut exhibited excellent tolerance to flumioxazin, regardless of flumioxazin rate or peanut cultivar, at Gainesville in 1999 and both locations in 2000. In 1999, at Marianna, flumioxazin caused early-season stunting and season-long reduction in peanut canopy width. Peanut response was independent of cultivar and did not exceed 25%, with an increase in stunting with higher flumioxazin rates. Peanut stunting was associated with cool and extremely wet growing conditions during the first 2 mo after planting in 1999 at Marianna. Peanut yield and grade parameters, in both years, were not affected by flumioxazin treatment.
ISSN:0890-037X
1550-2740
DOI:10.1614/0890-037X(2003)017[0089:ROTRTP]2.0.CO;2