2011年9月26日星期一

Use of dicamba-degrading microorganisms to protect dicamba susceptible plant species

Three strains of dicamba-degrading microorganisms wrer ale to reduce the herbicidal activity of dicamba in the rhizosphere quickly enough to allow dicamba susceptible crop species to grow. Pea seedlings planted immediately after inoculation had higher wetghts over the uninoculated controls at the 0.5 and 4.0 lb/acre rates in growth chamber studies. Peas seedlings planted 2 or 5 days after inoculation had higher mass over the uninoculated controls at all treatment rates. The concentration of dicamba in the soil was reduced dramatically at all treatment rates as compared to uninoculated controls.Dicamba-degrading bacteria also showed activity in field test plots, where soybeans were protected from dicamba damage even at the 8 lb/acre application rate.

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