Influence of Bioagents on Seed Yield and Quality of Soybean (Glycine max (L.) Merrill)

Field and Laboratory experiments were conducted to know the influence of bioagents viz., soybean Rhizobium, Pseudomonas fluorescence, Bacillus subtilis, Trichoderma viridae, VAM and co-inoculation on seed yield and quality of soybean. Seeds treated with soybean Rhizobium @ 20 g/kg seed + Bacillus subtilis @ 20 g/kg seed + VAM @ 10 kg/ha + Trichoderma viridae @ 5 g/kg seed recorded significantly higher number ofnodules in plant (39.3 and 54.1 at 30 and 60 days after sowing respectively), number of pods (54.7 and 77.0 at 60 days after sowing harvest, respectively), seed yield (21.61 g/plant and 29.95 q/ha), net returns (Rs 58,244), benefit:cost (4.5), 100 seeds weight (14.85 g), total dehydrogenase activity (0.950), protein content (41.73 %), germination (97%), seedling length (34.3 cm), seedling dry weight (58.8 mg), vigour index-I (3323) and II (6676), and number of bacteria and fungal colonies (42 x 10⁶cfu/g soil and 16 x 10³cfu/g soil).