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Response of BAR-Transformed Rice (Oryza sativa) and Red Rice (Oryza sativa) to Glufosinate Application Timing

  • Sujatha Sankula (a1), Michael P. Braverman (a1) and Steven D. Linscombe (a2)

Abstract

Glufosinate at 2.2 kg ai/ha injured rice transformed with the BAR gene more when applied to one- to two-leaf (23 to 26%) than to three- to four-leaf (13 to 19%) plants. Visible injury was least when applications were made at boot stage (3 to 14%). However, applications at boot stage caused an average grain yield reduction of 16%. Most treatments did not influence rice plant height. Among single applications (0.3, 0.4, 0.6, 0.8, and 1.1 kg/ha), 1.1 kg/ha glufosinate at three- to four-leaf stage of red rice resulted in greater control (91%) than at panicle initiation (74%) or at boot stage (77%). Injury to red rice was two to 11 times greater than the injury to BAR-transformed rice depending on glufosinate rate and application timing.

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Response of BAR-Transformed Rice (Oryza sativa) and Red Rice (Oryza sativa) to Glufosinate Application Timing

  • Sujatha Sankula (a1), Michael P. Braverman (a1) and Steven D. Linscombe (a2)

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