In the present study we analyzed two sweet corn hybrids, in four row spacing and five plant populations. A randomized block design was used, in a 2x4x5 factorial, corresponding to hybrid (MD2001 and MD2002), row spacing (60; 70; 80 and 90 cm) and plant populations (50; 55; 60; 65 and 70 thousand plants ha-1) with four replications. Aiming to obtain a minimum ear length of 150 mm, recommended row spacing and population were 60 cm and 67 thousand plants ha-1, respectively. Under these management conditions, hybrid MD2001 presented greater ear kernel productivity, while hybrid MD2002 presented better industrial yield. Ear length and diameter, and the number of kernel lines represented the major components in ear and kernel productivity. Kernel depth was the major component for improving the industrial yield.
Zea mays L.; ear length; ear diameter; kernel depth
