An experiment was carried out at farmer’s field, to study the effect of biofertilizers on the yield and quality of grape cv. Muscat Hamburg. The biofertilizers viz., Azotobacter, phosphate solubilising bacteria and potash releasing bacteria were applied at the rate of 100 g, 200 g and 300 g each along with 75% and 100% recommended dose of fertilizers and control. Among the treatments, the application of 300 g each of Azotobacter, phosphate solubilising bacteria, potash releasing bacteria along with100% recommended dose of fertilizers exhibited profound effect on yield and yield attributing traits, reflected by higher number of bunches (32.05 per vine), maximum bunch weight (275.81 g) and maximum yield (8.84 kg/vine). The same treatment also positively influenced the quality attributes viz., TSS, TSS: acid ratio and total sugars. Application of biofertilizers along with 100% recommended dose of fertilizers have better impact on yield and quality attributes of grape cv. Muscat Hamburg.

Azotobacter, phosphate solubilising bacteria, potash releasing bacteria, yield, quality

Based on the present investigation, it is concluded that application of biofertilizers viz., 300 g Azotobacter, 300 g Phosphate solubilising bacteria and 300 g Potassium releasing bacteria/vine along with 100% RDF in grapes cv. Muscat Hamburg is found to improve the yield and quality attributes.

Vijayalakshmi T., C. Kavitha, K.A. Shanmugasundaram and I. Muthuvel (2022). Effect of Biofertilizers on Yield and Quality Attributes of Grape cv. Muscat Hamburg. Biological Forum – An International Journal, 14(4a): 238-241.