Water melon (Citrullus lanatus (Thumb) Malsunand Nakai) varieties Long grown in 1998 in rows 1.5m at plant spacing of 1.8m, 0.9 and 0.6m representing 7407, 14814 and 22222 plants/ha respectively (2 plants/spot). Total fruit weight, fruit number and estimated gross return were determined for each planting density. Total fruit weight, fruit number and gross returns/ha were in the order Sugar baby> Suger sweet> Long crimson. Except for long crimson and super sweet, total marketable fruit yields per unit land area increased by 69% as plant population density increased from 7407 to 22222 plants/ha in sugar baby.
The potential for increasing water melon gross returns exists by increasing Sugar baby population beyond 22222 plants/ha during the second in Southern Nigeria.