Effect of Integrated Nutrient Management on Flowering, Flower Quality and Flower Yield of Gaillardia (Gaillardia pulchella Foug.) under Hill Zone of Karnataka

Author: Indhumathi M., Chandrashekar S.Y., Srinivasa V., Shivaprasad M. and Girish R.

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Abstract

The integrated nutrient management (INM) focuses at efficient and judicious use of the major sources of plant nutrients. It is done in an integrated manner so as to get maximum economic yield without any deleterious effect which is affecting the physio-chemical and biological properties of the soil. Only few experimental study has been done in gaillardia for integrated nutrient management. With this background an experiment was conducted at the Experimental block located at the department of Floriculture and Landscape Architecture, College of Horticulture, Mudigere during 2021-22. The experiment was laid out in Randomized Block Design (RBD) having twelve treatments viz., T1-75% Recommended Dose of Fertilizers + vermicompost @ 1.25 t/ha T2-50% RDF + vermicompost @ 2.5 t/ha, T3 -75% RDF + vermicompost @ 1.25 t/ha + Azospirillum @ 2 kg/ha, T4 -50% RDF+ vermicompost@ 2.5 t/ha + Azospirillum @ 2 kg/ha, T5-75% RDF + Azospirillum @ 2 kg/ha + VAM@2 kg/ha, T6 - 50% RDF + Azospirillum @ 2 kg/ha + VAM @2 kg/ha, T7-75% RDF+ vermicompost @ 1.25 t/ha + VAM @2 kg/ha, T8-50% RDF+ vermicompost @ 2.5 t /ha + VAM @2 kg/ha, T9-75% RDF + vermicompost @ 1.25 t/ha + Azospirillum @ 2 kg/ha + VAM @2 kg/ha, T10-50% RDF + vermicompost @ 2.5 t/ha + Azospirillum @ 2 kg/ha + VAM @2 kg/ha, T11-100% RDF + vermicompost @1.25 t/ha + Azospirillum @ 2 kg/ha + VAM @ 2 kg/ha and T12-100% RDF (Control) replicated thrice. The treatment T9-75% RDF+ vermicompost@ 1.25 t/ha + Azospirillum@ 2 kg/ha + VAM @2 kg/ha recorded the minimum days for 50 per cent flowering (78.30), maximum flowering duration (141.67 days), flower head diameter (6.58 cm), flower petiole length (39.20 cm), corolla length (3.09 cm), shelf life (3.13 days), vase life (5.67 days), average flower weight (3.48 g), number of flowers per plant (104.30), flower yield per hectare (22.09 tonnes)and it was statistically on par with the treatment comprising of T11-100% RDF + vermicompost@ 1.25 t/ha + Azospirillum@ 2 kg/ha + VAM@ 2 kg/ha. Hence, this treatment proved to be promising for the enhancement the flower quality and yield of gaillardia under hill zone of Karnataka.

Keywords

Gaillardia, integrated nutrient management, flowering, flower quality and yield

Conclusion

From the findings of present investigation, it could be concluded that the integrated application of nutrients by different sources i.e., inorganic fertilizers, vermicopost, Azospirillum and VAM influence the plant growth, flowering, quality and yield of gaillardia. Hence, the treatment 75% RDF + vermicompost@ 1.25 t/ha + Azospirillum @ 2 kg/ha + VAM @2 kg/ha may be recommended for the commercial cultivation of gaillardia under hill zone of Karnataka.

References

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How to cite this article

Indhumathi M., Chandrashekar S.Y., Srinivasa V., Shivaprasad M. and Girish R. (2023). Effect of Integrated Nutrient Management on Flowering, Flower Quality and Flower Yield of Gaillardia (Gaillardia pulchella Foug.) under Hill Zone of Karnataka. Biological Forum – An International Journal, 15(1): 119-123.