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Papaya is one of the most important fruit crops belongs to the family Caricaceae grown in tropical to subtropical areas all over the world and is mainly propagated by seeds which show wide variability in germination and seedling growth. The present experiment was conducted to study the influence of potting media on seed germination, seedling growth and vigour in TNAU Papaya CO.8 with different treatments viz., control (M1), cocopeat + vermicompost + azospirillum + phosphobacteria (M2), cocopeat + vermicompost + pseudomonasfluorescens (M3), cocopeat + azospirillum + phosphobacteria (M4), cocopeat + azospirillum + phosphobacteria + pseudomonasfluorescens (M5) and cocopeat + vermicompost + azospirillum + phosphobacteria + pseudomonasfluorescens (M6) were evaluated and compared. the best results were obtained by cocopeat + vermicompost + azospirillum + phosphobacteria + pseudomonasfluorescens (M6) followed by cocopeat + vermicompost + pseudomonasfluorescens (M3) which showed highest seed germination percentage, seedling height, seedling girth, leaf nutrient contents, chlorophyll content and leaf soluble protein content.
Key words: Cocopeat, vermicompost, Azospirillum, Phosphobacteria, Pseudomonasfluorescens, papaya, seed germination, seedling growth and vigour.