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A field experiment was conducted during summer (zaid) 2015 at Department of Horticulture, MJRP College of Agriculture & Research, MJRP University Jaipur (Rajasthan). The experiment consisted of nine treatments with three replications evaluated in randomized block design. Results of field experiment revealed that the minimum days required to opening female flower from sowing (36.36 days) and node number at which first female flower appears (4.95) was recorded under T8 treatment followed by T7 (38.69 days) whereas the maximum days (43.26 days and 6.92) were under control. Whereas, length of main vine and per cent fruit set were the maximum recorded under application of T8. Maximum length (42.85 cm), girth (24.32 cm), fresh weight (1077.27 g) and number of fruits per plant (13.44) were recorded under T8 treatment and the minimum under control. The maximum yield (361.96 q ha-1) was obtained under T7 and the minimum under control (91.84 q ha-1). Application of 110 kg N + 70 kg P2O5 ha-1 recorded significantly higher net returns (327756.52 Rs ha-1) and B: C ratio (9.58) which was found statistically superior over other treatments.
Keywords: Bottle gourd, nutrients, growth characters, fruit characters, fruit yield and B: C ratio.