Effect of seed treatment with Pseudomonas fluorescens and Trichoderma viride against Meloidogyne incognita on chickpea cv. Avrodhi under field conditions

Studies were undertaken in experimental field of Faculty of Agricultural Sciences, Aligarh Muslim University, Aligarh during 2006-07 to determine the effect of Pseudomonas fluorescens and Trichoderma harzianum alone (each @ 10 g/kg seed having 108 cfu/g talk based formulation) and in combined treatment of both the biocontrol agents (@5+5 g/kg seed) and carbosulfan @ 3% ST w/w as treated control against Meloidogyne incognita on chickpea cv. Avrodhi. Experimental results revealed that highest improvement in number of nodules (81.3%) and seed yield (20.9%) and highest reduction in final nematode population (68.2%) and root-knot index (33.3%) was observed in seed treatment with P. fluorescens + T. viride followed by T. viride alone and P. fluorescens alone, respectively as compared to untreated control.