A field experiment was conducted at the Horticultural Research Farm of Prof. Rajendra Singh (Rajju Bhaiya) University, Naini, Prayagraj, during the Rabi season of 2025–26 to evaluate the effect of plant growth regulators of okra cv., Arka Anamika. The research experiment was laid out in a Randomized Block Design (RBD) with nine treatment and three replications. The results revealed that the combined application of GA₃ and NAA significantly influenced the growth, yield and quality attributes of okra. Among all treatments, T₉ (GA₃ @ 200 ppm + NAA @ 200 ppm) recorded the maximum plant height (39.44, 128.29 and 176.44 cm at 30, 60 and 90 DAS, respectively), number of leaves per plant (8.74 and 21.65 at 30 and 60 DAS, respectively), leaf length (21.78 and23.30cm at 30 and 60 DAS), leaf width (29.82 and 34.18 cm at 30 and 60 DAS), number of branches per plant (3.90 at 60 DAS). Additionally, T9 minimized the crop duration, requiring only 47 days to first flowering and 56 days to first harvest. While, maximizing reproductive and yield components such as the number of flower buds per plant (3.34 and 11.02 at 30 and 60 DAS), pod length(15.11cm), pod diameter (1.94 cm), number of seed per pods (53.33), number of pods per plant (14.37), fresh weight of pod (17.38g), pod yield per plot (3.51kg), total yield t/ha (8.78). Conversely qualitative parameters were also improved T₇ (GA₃ @ 100 ppm + NAA @ 200 ppm) producing superior ascorbic acid content(16.70mg/100g), total soluble solids (5.330brix) and moisture percentage in pods (90.07%). Overall, the combined application of GA3 and NAA exhibited enhanced vegetative development, overall plant vigor, and yield traits compared to the control treatment.
A. Yadav, Lavkush Pandey, Shivkant Singh Chandel et al.· International Journal of Pla...· 0 citations
Onion (Allium cepa L.) is an economically important vegetable crop valued for its culinary, nutritional, and commercial significance. Optimising the foliar application of plant growth regulators and micronutrients may improve onion growth, bulb yield, quality, and production economics. The study aims to evaluate the effects of plant growth regulators and zinc on the growth, yield, and quality of onion. A field experiment was conducted during the rabi season of 2025–26 at the Horticulture Research Field, Prof. Rajendra Singh (Rajju Bhaiya) University, Naini, Prayagraj, Uttar Pradesh, The experiment was arranged in a randomised block design with seven treatments and three replications. The treatments comprised GA₃ (100 ppm), NAA (200 ppm), zinc (0.1%), and their combinations, applied as foliar sprays at 30 and 60 days after transplanting (DAT). Among the treatments, T₅ (GA₃ 100 ppm + zinc 0.1%) produced the highest plant height (56.57, 60.12, and 66.19 cm), number of leaves per plant (6.87, 8.00, and 13.01), pseudostem length (6.83, 9.32, and 14.74 cm), and pseudostem diameter (1.92, 2.83, and 3.51 cm) at 45, 60, and 90 DAT, respectively. The same treatment also recorded the highest average bulb weight (85.36 g), polar diameter (6.14 cm), equatorial diameter (6.33 cm), yield per plot (11.35 kg plot⁻¹), and yield per hectare (28.38 t ha⁻¹), followed by T₆ (NAA 200 ppm + zinc 0.1%). In contrast, the highest total soluble solids (12.20 °Brix), titratable acidity (0.31%), ascorbic acid (13.43 mg 100 g⁻¹), and total sugar content (6.43%) were recorded under T₄ (GA₃ 100 ppm + NAA 200 ppm). The control (T₇) recorded the lowest values for most parameters. In this study, GA₃ (100 ppm) combined with zinc (0.1%) improved onion growth and yield, whereas GA₃ (100 ppm) combined with NAA (200 ppm) improved bulb quality.
G. Singh, Lavkush Pandey, Shivkant Singh Chandel et al.· International Journal of Pla...· 0 citations
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