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^: *https://www.cambridge.org/core/journals/weed-technology/all-is sues (https://www.cambr)
^: Beam S.C.; Jennings K.M.; Chaudhari S.; Monks D.W.; Schultheis J.R.; Waldschmidt M.
^: Response of Sweetpotato Cultivars to Linuron Rate and Application Time [ Covington Murasaki-29 S-, 7 14 . ()]
^: Weed Technology, 2018; Vol.32,N 6. - P. 665-670
^: 2018
^: Bibliogr.:p.670
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^: Field studies were conducted in 2015 and 2016 in North Carolina to determine the response of Covington' and Murasaki-29' sweetpotato cultivars to four rates of linuron (420, 560, 840, and 1,120 g ai ha-1) alone or with S-metolachlor (803 g ai ha-1) applied 7 or 14 d after transplanting (DAP). Injury (chlorosis/necrosis and stunting) to both cultivars was greater when linuron was applied with S-metolachlor as compared to linuron applied alone. Herbicide application at 14 DAP caused greater injury (chlorosis/necrosis and stunting) to both cultivars than when applied at 7 DAP. At 4 wk after treatment (WAT), stunting of Covington and Murasaki-29 (hereafter Murasaki) from linuron at 420 to 1,120 g ha-1 increased from 27% to 50% and 25% to 53%, respectively. At 7 or 8 WAT, crop stunting of 8% or less and 0% was observed in Covington and Murasaki, respectively, regardless of application rate and timing. Murasaki root yields were similar in the linuron alone or with S-metolachlor treatments, and were lower than the nontreated check. In 2016, no. 1 and marketable sweetpotato yields of Covington were similar for the nontreated check, linuron alone, or linuron plus S-metolachlor treatments, but not in 2015. Decreases in no. 1 and marketable root yields were observed when herbicides were applied 14 DAP compared to 7 DAP for Covington in 2015 and for Murasaki in both years. No. 1 and marketable yields of Covington were similar for 420 to 1,120 g ha-1 linuron and nontreated check except marketable root yields in 2015. No. 1 and marketable sweetpotato yields of Murasaki decreased as application rates increased. aref1

^TRN: 1914197
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