Integrated Management of Soybean Stem Rot

P. Datta; B. C. Das; D. K. Hazarika

doi:10.18311/jbc/2000/4030

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Authors

P. Datta
Department of Plant Pathology, Assam Agricultural University Jorhat 785 013, Assam ,IN
B. C. Das
Department of Plant Pathology, Assam Agricultural University Jorhat 785 013, Assam ,IN
D. K. Hazarika
Department of Plant Pathology, Assam Agricultural University Jorhat 785 013, Assam ,IN

DOI:

https://doi.org/10.18311/jbc/2000/4030

Keywords:

Carrier, Disease Index, Methylcellulose, Rhizoctonia solani, Thiram, Trichoderma harzianum.

Abstract

Combination of four different carriers along with Trichoderma harzianum as seed treatement was tested in pot condition against Rhizoctonia solani causing soybean stem rot. Conidial suspension (1 x 10⁸ conidia per ml) of the antagonist was used for seed treatment. Seed germination (%) and yield (g/plant) was found higher in all treatments irrespective of carrier and antagonist used. However, seed germination and yield was found to he on par. The higbest germination (85.33%) and yield (11.78 g/plant) and lowest disease index (1.5) were obtained when seeds were treated with T. harzianum + methylcellulose. Seed treatment with sub-lethal doses of thiram (0.05 and 0.01 %) and T. harzianum showed lower disease index, higher germination and yield than the lethal dose (0.3 %) alone.