Influence of growth regulator schedule on fruit yield and quality of Manjri Naveen grape variety

Abstract

The different concentration of GA3 (i.e. 1, 2, 5, 10, 15 and 20 ppm) and CPPU (i.e. 0.5, 1 and 2 ppm) were applied at different physiological stages (i.e. at pre-bloom and berry development stages) as a different schedule at two growing seasons. The all traits observed significant. The schedule 3 of high concentration of compounds showed significant effect on berry length (27.3 mm), 50-berry weight (195.1 g), bunch weight (388.9 g), yield per vine (14.8 kg), bricks yield (444.2), yield per hectare (25.9 ton) and pedicel thickness (2.59 m). Number of berries per bunch (94) and berry diameter (19.3 mm) observed highest in schedule 2. Yield per hectare was positively correlated with berry length (0.959*) and pedicel thickness (0.967*). Berry length significantly positive correlated with pedicel thickness (0.983*), Thus, the study clearly indicates that the schedule 3 of higher concentration of GA3 and CPPU was best suited for the Manjri Naveen grape variety for recording higher yield and quality.