Indian Journal of Microbiology

, Volume 51, Issue 2, pp 230–233 | Cite as

In Vitro Sensitivity of Rhizobium and Phosphate Solubilising Bacteria to Herbicides

Short Communication

Abstract

Nitrogen fixing bacteria, rhizobia and phosphate solubilizing bacteria (PSB) are the commonly applied microbial inoculants in grain legumes (Pulses). It is important to apply herbicides to control weeds in order to augment yield of the crop. The herbicides may however, be incompatible with the microbial inoculants. This study compared the effect of the recommended pre-plant incorporated herbicide, fluchloralin (20.25 × 104 ppm) and pre-emergence herbicide, pendimethalin in two doses (9 × 104 and 15 × 104 ppm) on the growth and survival of mungbean Rhizobium and PSB, under laboratory conditions. These herbicides were also used under field conditions in conjunction with biofertilizers (R, PSB) to improve grain yield of mungbean. It was found that fluchloralin (20.25 × 104 ppm) and the lower dose of pendimethalin (9 × 104 ppm) had no adverse effect on growth of Rhizobium and PSB. The higher dose of pendimethalin (15 × 104 ppm) was safe on PSB but it imposed a retarding effect on the growth of Rhizobium.

Keywords

Herbicides PSB Rhizobium 

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Copyright information

© Association of Microbiologists of India 2011

Authors and Affiliations

  1. 1.Department of Plant Breeding, Genetics and BiotechnologyPunjab Agricultural UniversityLudhianaIndia

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