Influence of Plant Growth Regulators on Growth and Flowering Behaviors of Bottle Gourds (Lagenaria siceraria L.). cv. Narendra Jyoti

The present investigation was carried out with the title Influence of plant growth regulators on growth and flowering behavior of bottle gourd (Lagenaria siceraria L.). cv. Narendra Jyotion at the agriculture research farm of Sanjeev Agrawal Global Educational University, Bhopal, during the Zaid season of 2024. The experiment was laid out with RBD (randomized block design) with three replications and thirteen treatments. The experiment was conducted with four levels of each of three plant growth regulators namely (NAA, GA3 and Ethylene) respectively were sprayed on bottle gourd to find out their response on growth and flowering behavior. In this experiment, three plant growth regulators were used with four split doses, such as NAA at 50 ppm, 75 ppm, 100 ppm, and 150 ppm, GA3 at 20 ppm, 40 ppm, 60 ppm, and 80 ppm, whereas ethylene also had four split doses at 50 ppm, 100 ppm, 150 ppm, and 200 ppm on cv. Narendra Joyti. Different growth and flowering behaviors such as number of primary branches, number of nodes to the first male flower anthesis, number of nodes to the first female flower anthesis, days to the first male flower opening, days to the first female flower opening, days to the first harvest, and vine length at the time of final harvesting were observed during this experiment. The result indicated that the growth and flowering behaviour of bottle gourds showed significant better result at NAA@ 150 ppm over NAA @100, NAA @50 ppm and NAA @25ppm, while in case of Gibberellic acid GA3 @80 ppm recorded better results over GA3@60, GA3 @40, and GA3 @ 20 ppm, whereas in ethylene, Ethrel @200 ppm performed better results for all growth and flowering traits over Ethrel @ 150, Ethrel @100, and Ethrel @50 ppm.