Effect of plant bioregulator and chemical treatment on germination of papaya (Carica papaya L.) cv. Pusa Nanha

Bio inoculants have a synergistic effect on plant growth. Plant bioregulators and chemical treatment application for germination and seedling growth of papaya (Carica papaya L.) cv. Pusa Nanha was evaluated in the present study. The maximum percentage of germination was obtained in seed treated with KNO₃+soaked in water + incubated in Farm Yard Manure (FYM)followed by T₃ (Untreated + Soaked in water + incubated in FYM) and T₁₂ (Treated Na₂S₂O₃.5H₂O for 24 h + incubated in FYM for 24 h). The maximum speed of germination or coefficient of velocity was obtained from T₃ (Untreated + Soaked in water + incubated in FYM). Results indicate a promoter role of incubation of seed with bio inoculants, viz., potassium nitrate (KNO₃) and FYM for seed germination in papaya.