Influence of Weed Competition and Herbicides on Glyphosate-Resistant Soybean (Glycine max)1
| Autor: | Bryan G. Young, Joseph L. Matthews, Ronald F. Krausz, George Kapusta |
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| Rok vydání: | 2001 |
| Předmět: | |
| Zdroj: | Weed Technology. 15:530-534 |
| ISSN: | 1550-2740 0890-037X |
| DOI: | 10.1614/0890-037x(2001)015[0530:iowcah]2.0.co;2 |
| Popis: | Field studies were conducted from 1997 to 1999 to evaluate the influence of weed com- petition and herbicides on glyphosate-resistant soybean at the Belleville Research Center at Belleville, IL. Season-long weed competition did not delay maturity or reduce soybean population. However, season-long weed competition reduced soybean height by 10% and grain yield by 68%. Competition from weeds 30 cm in height or less did not increase days to maturity or reduce plant population, height, or grain yield. Chlorimuron plus thifensulfuron caused 6% height reduction at 21 d after treatment. Despite the injury from herbicides, none increased days to maturity or reduced plant height, population, or grain yield of soybean. The soil-applied herbicides alachlor, imazaquin, and pendi- methalin and the postemergence herbicides acifluorfen, bentazon, chlorimuron, imazethapyr, and thi- fensulfuron did not reduce yield of glyphosate-resistant soybean. Nomenclature: Acifluorfen; alachlor; bentazon; chlorimuron; glyphosate; imazaquin; imazethapyr; pendimethalin; thifensulfuron; soybean, Glycine max (L.) Merr. 'Asgrow 4401 RR'. Additional index words: Herbicide injury, soil-applied herbicides, preemergence, postemergence. Abbreviations: DAT, days after treatment; POST, postemergence; PRE, preemergence; UAN, urea ammonium nitrate. |
| Databáze: | OpenAIRE |
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