Impact of Post-harvest Treatments of Plant Growth Regulators and Antioxidant on the Quality of Guava (Psidium guajava L.)

Tanishka Thapa and Vijaya Rawat

Abstract

In ambient storage settings, the study was conducted to assess the impact of antioxidants and plant growth regulators on the quality attributes of guava (Psidium guajava L.). Throughout the investigation, fruits were subjected to varying concentrations of plant growth regulators and antioxidants, specifically T1 (NAA @ 100 ppm), T2 (NAA @ 200 ppm), T3 (NAA @ 300 ppm), T4 (GA3 @ 100 ppm), T5 (GA3 @ 200 ppm), T6 (GA3 @ 300 ppm), T7 (ascorbic acid (AA) @ 100 ppm), T8 (AA @ 200 ppm), and T9 (AA @ 300 ppm), and these treatments were contrasted with the control. According to the study, the various AA dosages were found to be significantly different from the other treatments. It was observed that the application of 300 ppm of AA resulted in the minimum Physiological Weight Loss besides reporting the maximum acidity, total soluble solids (TSS), firmness, total sugar, reducing sugar, AA, and fruit size followed by other AA treatments such as T7 AA (100 ppm) and T8 AA (200 ppm) in comparison to the different concentration of GA3 and NAA. The outcomes clearly show that guava fruit quality attributes could be improved by applying 300 ppm AA.

Published on: November 15, 2023
doi: 10.17756/jfcn.2023-s1-068
Citation: Thapa T, Rawat V. 2023. Impact of Post-harvest Treatments of Plant Growth Regulators and Antioxidant on the Quality of Guava (Psidium guajava L.). J Food Chem Nanotechnol 9(S1): S541-S545.

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