Glyphosate Resistance Confirmation and Field Management of Red Brome (Bromus rubens L.) in Perennial Crops Grown in Southern Spain
نویسندگان
چکیده
The excessive use of the herbicide glyphosate on annual and perennial crops grown in Southern Spain has caused an increase resistant weed populations. Bromus rubens begun to spread through olive almond cultivars due low control over these species, whereas previously it had been well controlled with field dose (1080 g ae ha−1). Characterization using Simple Sequence Repeat (SSR) markers confirmed presence B. collected Andalusia. A rapid shikimic acid accumulation screening showed 17 (R) populations values between 300 700 µg shikimate g−1 fresh weight three susceptible (S) 1200 1700 weight. In dose–response experiments GR50 agreed previous results resistance factors (RFs: R/GR50 S (Br1)) were 4.35 (Br9) 7.61 (Br19). Foliar retention assays shown no differences both R tests carried out a (Br10) demonstrated efficacy pre-emergence herbicides since flazasulfuron tank mix up 80% 15 120 days after application (DAA) grass postemergence herbicides, such as propaquizafop + quizalofop glyphosate, 90% 90 DAA. Results confirm first scientific report glyphosate-resistant worldwide; however, another mode action (MOA) is best tool for integrated management.
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ژورنال
عنوان ژورنال: Agronomy
سال: 2021
ISSN: ['2156-3276', '0065-4663']
DOI: https://doi.org/10.3390/agronomy11030535