Studies on Foliar Application of Growth Regulators on Fruit Quality of Guava cv. Taiwan Pink

Author: Hemalatha Lakshmi Kumari T., Harsha Vardhan A., Omprasad J. and Uma Krishna K.

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Abstract

The present investigation entitled “Studies on foliar application of growth regulators on fruit quality of guava cv. Taiwan pink” was carried out at Department of Fruit Science, Dr. YSRHU-College of Horticulture, Venkataramanannagudem, West Godavari district of Andhra Pradesh during January 2023 to August 2023. The experiment was laid out in a Randomized Block Design (RBD) with nine treatments and each treatment replicated thrice. The results revealed that the fruits harvested from the plants sprayed with Ethrel @ 500ppm + GA3 @ 200ppm + NAA @ 300ppm(T4) had showed significant effect on quality attributes viz., maximum TSS (10.04 °Brix), TSS/Acid ratio (33.47), total sugars (7.17 %), reducing sugars (4.58 %), non-reducing sugars (2.59 %), ascorbic acid content (219.53 mg 100 g-1pulp) and lowest titrable acidity (0.30 %). While minimum TSS (8.35 °Brix), TSS/Acid ratio (13.92), total sugars (5.76 %), reducing sugars (4.03 %), non-reducing sugars (1.73 %), ascorbic acid content (190.74 mg 100 g -1) and highest titrable acidity (0.60 %) was recorded in control-water spray (T9).

Keywords

Guava, Ethrel, GA3, NAA, quality parameters

Conclusion

On the basis of results obtained in the present investigation, it could be concluded that, the fruits sprayed with (T4) Ethrel @ 500ppm + GA3 @ 200ppm + NAA @ 300ppm have showed better results in terms of fruit quality attributes viz., TSS, titrable acidity, TSS/Acid ratio, reducing sugars, non-reducing sugars, total sugars and ascorbic acid content.

References

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How to cite this article

Hemalatha Lakshmi Kumari T., Harsha Vardhan A., Omprasad J. and Uma Krishna K. (2023). Studies on Foliar Application of Growth Regulators on Fruit Quality of Guava cv. Taiwan Pink. Biological Forum – An International Journal, 15(10): 432-435.