Spring Wheat Tolerance to De-750 Applications at Different Growth Stages
| Autor: | C.M. Lozano, E.V. Abello, M.G. Monterubbianesi, M.I. Leaden |
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| Rok vydání: | 2007 |
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| Zdroj: | Weed Technology. 21:406-410 |
| ISSN: | 1550-2740 0890-037X |
| Popis: | Spring wheat tolerance to DE-750 applications was studied in Balcarce, Argentina, during 2002 and 2003. Rates of DE-750 evaluated were 6 and 12 g ae/ha tank-mixed either with metsulfuron at 4 g ai/ha or 2,4-D at 240 g ae/ha and applied at three different Zadoks growth stages: Zd 15/22, Zd 16/23, and Zd 32. The first two Zadoks stages corresponded to Nerson's elongated apex with two or more visible primordia and the glumes differentiation stage, respectively. Dicamba plus metsulfuron and picloram plus 2,4-D were included as comparative treatments and applied at the same growth stage. In both 2002 and 2003, Baguette 10 tolerated the DE-750 plus metsulfuron and DE-750 plus 2,4-D mixtures sprayed during the first two applications (Zd 15/22 and Zd 16/23). However, DE-750 plus metsulfuron (12 g/ha + 4 g/ha) and DE-750 plus 2,4-D (6 g/ha + 240 g/ha and 12 g/ha + 240 g/ha) sprayed during the last application (Zd 32) caused significant yield reductions in the 2002 spring season. On the other hand, picloram plus 2,... |
| Databáze: | OpenAIRE |
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