Biofertilizers on Improving Bunch and Berry Attributes in Grapes

Author: Kavitha C., T. Vijayalakshmi T., K.A. Shanmugasundaram and I. Muthuvel

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Abstract

An experiment was conducted at Coimbatore to study the effect of biofertilizers on the bunch and berry attributes of grapes. The biofertilizers viz., Azotobacter, phosphate solubilizing bacteria (PSB) and potash releasing bacteria (KRB) were applied to the individual vines at three different doses of 100 g, 200 g and 300 g each along with 75% and 100% RDF and control (100% RDF alone). Application of 300 g each of Azotobacter, phosphate solubilizing bacteria, potash releasing bacteria with 100% RDF registered positive impact on the bunch and berry attributes of grape viz., maximum number of bunches (32.05), bunch length (20.72 cm), bunch circumference (33.87 cm), bunch weight (275.81 g), berry length (17.49 mm), berry width (16.64 mm) and berry volume (4.12 cm3). The application of biofertilizers also positively influenced total chlorophyll, total carbohydrate content, nitrate reductase activity, leaf petiole nutrient content, available nutrient and microbial population in the soil.

Keywords

Azotobacter, PSB, KRB, Grapes, bunch, berry, attributes

Conclusion

The results from the present investigation indicated that application of 300 g each of Azotobacter, phosphate solubilising bacteria and potassium releasing bacteria along with 100% RDF /vine registered better performance for bunch and berry attributes in grapes cv. Muscat Hamburg.

References

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How to cite this article

Kavitha C., T. Vijayalakshmi T., K.A. Shanmugasundaram and I. Muthuvel (2023). Biofertilizers on Improving Bunch and Berry Attributes in Grapes. Biological Forum – An International Journal, 15(4): 405-410.