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http://dx.doi.org/10.5660/WTS.2015.4.1.44

Weed Control and Safety of Transgenic Rice Event, CPPO06 in Direct-Seeding Flooded Rice Field  

Won, Ok Jae (Department of Crop Science, Chungnam National University)
Park, Su Hyuk (Department of Crop Science, Chungnam National University)
Eom, Min Yong (Department of Crop Science, Chungnam National University)
Kim, Chang-Gi (Bio-Evaluation Center, Korea Research Institute of Bioscience and Biotechnology)
Lee, Bum Kyu (Biosafety Division, National Academy of Agricultural Science)
Kang, Hong-Gyu (Subtropical Horticulture Research Institute, Jeju National University)
Lee, Jeung Ju (Department of Plant Medicine, IALS, Gyeongsang National University)
Park, Kee Woong (Department of Crop Science, Chungnam National University)
Publication Information
Weed & Turfgrass Science / v.4, no.1, 2015 , pp. 44-48 More about this Journal
Abstract
This study was conducted to evaluate the efficacy of weed control and phytotoxicity of oxyfluorfen using a transgenic rice line (CPPO06 event) resistant to protoporphyrinogen oxidase (Protox) inhibiting herbicides in the direct-seeding flooded rice. Five annual weeds including Echinochloa oryzoides and two perennial weeds were occurred in the test field. Oxyfluorfen at 120 g a.i. $ha^{-1}$ in the application timing of two days before sowing and 0 and five days after sowing showed more than 90% weed control value except for Juglans mandshurica. Total weed control value was more than 95% in any application timing indicating a highly effective herbicide in the direct-seeding flooded rice. When compared with untreated control, no visual injuries were detected at single and double dosage of oxyfluorfen. The agronomic characteristics and yield components of CPPO06 event was reasonable in any time of application in this study. Based on these data, oxyfluorfen application before and after sowing can be applied to provide effective weed management in the direct-seeding flooded field.
Keywords
Direct-seeding flooded rice; Oxyfluorfen; Transgenic rice; Weed control;
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