A field experiment was conducted at the College of Agronomy Teaching and Research Farm of the University of Agriculture Makurdi during the rainy season (July – November) of 2015 to evaluate the response of three plant densities /53, 333, 66,666 and 106,666 plants /ha) on four varieties of maize (ZEA Mays L) for grain and Stover yield in Makurdi, Benue State in the Southern guinea savanna ecology of Nigeria. The maize varieties (IWDC3, SAMMAZ 11, 2009 TZEE –ORI and LOCAL) were evaluated under three different spacing of 25cm, 40cm and 50cm x 75cm. parameters observed were shoot fresh and dry weight, days to 50% flowering, plant height, ear height, ear weight/plants, Stover yield, biological yield/plant, cob length, cob circumference, number of kernel rows/cob, number of kernels/row, number of kernels/cob, grain yield/plant, 100 seed weight, harvest index and grain yield. The study revealed that plant height, days to 50% anthesis, shoot fresh and dry weight, ear weight/plant, Stover yield, biological yield/plant, cob length, cob circumference, grain yield/plant, 100 seed weight, harvest index and grain yield were significantly influenced by spacing at P<0.05. The result of Stover yield (t/ha) indicated that the highest value of 2.45 t/ha was realized from 25cm (plant density of 106,666 stands/ha) while the value of 1.47 t/ha was observed for 50cm (plant density of 53,333 stands/ha). In respect to grain yield (t/ha), highest value of 3.53 t/ha was obtained from 40cm (plant density of 66,666 stands /ha) and the least value of 2.96 t/ha was realized in 50cm. This implies that maximum grain and Stover yield were obtained from a closer spacing of about 66,666 – 106666 stands/ha is suitable for the production of high yield grain and Stover of maize during the rainy season in the southern guinea of Nigeria.
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