| cyanobacterial diversity shifts induced by butachlor in selected indian rice fields in eastern uttar pradesh and western bihar analyzed with pcr and dgge. | the present study examines the effects of 30 mg/kg butachlor on the cyanobacterial diversity of rice fields in eastern uttar pradesh and western bihar in india. a total of 40 samples were grouped into three classes [(i) acidic, (ii) neutral, and (iii) alkaline soils], based on physicochemical and principle component analyses. acidic soils mainly harbored westillopsis, trichormus, anabaenopsis, and unicellular cyanobacteria; whereas nostoc, anabaena, calothrix, tolypothrix, and aulosira were foun ... | 2012 | 22297214 |