The correct answer 1. 25 x 1. 25 m. Papaya (Carica papaya) belongs to family Caricaceae. Centre of origin is Mexico. It is a polygamous plant and produces fruits throughout the year. Tropical fruit and more sensitive to frost. Yellow color in papaya is due to Carica xanthin. It needs a pH range 6. 5 - 7. A spacing of 1. 8 x 1. 8 m accommodating 3086 plants/ha. is normally followed. For High Density Planting, a closer spacing of 1. 25 x 1. 25 m for Pusa Nanha is adopted having 6400 plants/ha.