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1 July 2012 Georgia-06G, Florida-07, and Tifguard Peanut Cultivar Response to Chlorimuron
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Abstract

Recent shifts in the peanut cultivars commercially grown have led to a renewed interest in the tolerance of these new cultivars to herbicides. Field experiments were conducted in Georgia from 2008 to 2011 to evaluate the effects of chlorimuron on the incidence of tomato spotted wilt virus (TSWV) and yield of ‘Florida-07’, ‘Georgia-06G’, and ‘Tifguard’. Chlorimuron at 9 g ai ha−1 was applied at 60 to 69, 70 to 79, 90 to 99, and 100 to 109 d after peanut emergence (DAE). TSWV was increased by only 3% when chlorimuron was applied to Tifguard at 60 to 69 DAE. Yields of Florida-07 were not influenced by any timing of chlorimuron. Chlorimuron applied 60 to 69, 70 to 79, and 90 to 99 DAE caused yield reductions when applied to Georgia-06G. Yields of the cultivar Tifguard were reduced when chlorimuron was applied 70 to 79, 90 to 99, and 100 to 109 DAE. Yield losses from chlorimuron ranged from 7 to 11%.

Nomenclature: Chlorimuron; peanut, Arachis hypogaea L.

Weed Science Society of America
Eric P. Prostko, Robert C. Kemerait, and Theodore M. Webster "Georgia-06G, Florida-07, and Tifguard Peanut Cultivar Response to Chlorimuron," Weed Technology 26(3), 429-431, (1 July 2012). https://doi.org/10.1614/WT-D-11-00177.1
Received: 7 December 2011; Accepted: 1 February 2012; Published: 1 July 2012
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