Effect of PGRS on specific gravity of potato tubers

Abstract

In this study, we performed an experiment at Research Cum Instructional Farm, College of Agriculture, IGKV, Raipur (C.G), during the Rabi season 2018-19. The experiment was carried out with Factorial RBD with 14 treatment combinations consisting of two methods of application S (Seed treatment) and F (Foliar Spray application) and 7 levels of plant growth regulators viz., T1 (Plain water), T2 (GA3 -15 ppm), T3 (GA3-25 ppm), T4 (GA3- 50 ppm), T5 (IBA-100 ppm), T6 (IBA-200 ppm) and T7 (IBA-250 ppm) were replicated three times. The methods of PGRs application non-significantly differentiate the specific gravity of potato tuber. Specific gravity of tuber was observed maximum (1.05) in F (Foliar spray application) regarding treatments T6 was found maximum (1.07). The interaction effect of these two factors were found maximum in both the combination FT6 (1.10) followed by FT5 (1.07). However, maximum specific gravity of potato tuber was recorded (1.10).