International Journal of Plant & Soil Science

The present experiment was carried out during Zaid 2021. In order to study the “Effect of Naphthalene Acetic Acid and Indole Acetic Acid on Growth, Yield and Quality of Muskmelon (Cucumis melo. L). The trail was conducted at Biotechnology polyhouse, Department of Horticulture, Naini Agriculture Institute and Prayagraj. The foliar spray two growth regulators like Naphthalene Acetic Acid and Indole Acetic Acid were spray separately at different concentration (NAA @10ppm, 20ppm, 30 ppm, 40 ppm, 50 ppm, 60 ppm, 70 ppm, 80 ppm. IAA @ 100 ppm, 200 ppm, 300 ppm, 400 ppm, 500 ppm, 600 ppm, 700 ppm, 800 ppm. The result revealed among all the treatments foliar application of NAA (80 ppm) is significantly gave positive impact on growth, yield and quality parameters.

i.e. Vine length (153.96 cm), number of days for 1^st male flower (33.6 Days), No.  of days for 1^st female flower (38.83 Days), No. of Node at which 1^st Male flower appears ( 4 . 1 ), No. of Node at  which 1^st Female flower appears ( 5 . 83) No. of Male flowers (207.33), No. of Female flowers(5.3) fruits per   plant (3), diameter of the fruit (22.53 cm), length of the fruit(13.4cm), fruit yield per plant (1.4 kg), fruit yield per hectare (12.46 t), total soluble solids (11.30 Brix°), gross returns (3,73,800 Rs/ha), net returns (2,39,844 Rs/ha) and Benefit: cost ratio (2.79) were obtained among all other treatments with foliar application of NAA @80 ppm compared to other treatments.