author(s)
SS Rabari, JR Vadodaria, SG More, MD Acharya and BM Chaudhary

abstract
A field experiment entitled, “Effect of different organic sources of nitrogen with biofertilizers on plant growth, flowering and sex expression of bottle gourd (Lagenaria siceraria Mol. Standl.) cv. Pusa Naveen” was carried out during summer season of the year 2016 at the Department of Vegetable Science, College of Horticulture, S. D. Agricultural University, Sardarkrushinagar. Experiment was laid out in randomized block design with different seventeen treatments. Results of experiment revealed that, minimum days taken for germination was observed with treatments T₁₇ (100 % Nitrogen through Poultry manure + Azotobacter + PSB + Trichoderma viride), T₁₆ (100 % Nitrogen through Vermicompost + Azotobacter + PSB + Trichoderma viride), T₁₅ (100 % Nitrogen through Castor cake + Azotobacter + PSB + Trichoderma viride), T₁₃ (100 % Nitrogen through Poultry manure + PSB + Trichoderma Viride), T₁₀ (100 % Nitrogen through FYM + PSB + Trichoderma viride), T₈ (100 % Nitrogen through Vermicompost + Azotobacter + Trichoderma viride) and T₅ (100 % Nitrogen through Poultry manure). Maximum length of vine at 45 DAS and at last harvest were recorded with 100 % Nitrogen through Poultry manure + Azotobacter + PSB + Trichoderma viride (T₁₇). Whereas, The maximum number of branches per vine was recorded for 100 % Nitrogen through Poultry manure (T₅). Whereas, leaf area per vine at 45 DAS was found not significant. Minimum number of male flowers per vine recorded with application of 100 % Nitrogen through FYM. Whereas, number of female flowers per vine and sex ratio of male and female flowers were found not significant.