Influence of exogenous NAA application on quality attributes of dragon fruit

Abstract

The present investigation entitled “Influence of exogenous NAA on quality attributes of dragon fruit” was carried out at Instructional Farm, Polytechnic in Horticulture, Junagadh Agricultural University, Junagadh during the year 2024. The experiment was laid out in a Randomized Block Design (RBD) with a Factorial concept, involving four levels of GA3 and two levels of NAA, each replicated three times. With the application of NAA, the result was obtained significant in case of quality parameters like total sugar, reducing sugar, non-reducing sugar and titrable acidity. However, maximum total sugar (12.46%), reducing sugar (9.37%), non-reducing sugar (3.09%) and minimum acidity (0.30%) were observed in 20 ppm NAA application (N1). From the present study, it can be inferred that the spraying of 20 ppm NAA at 7, 14 and 21 days after the flowering led to the superior results for the quality of dragon fruit.