Evaluation of Some Maize (Zea Mays L.) Varieties in Different Environments of the Nuba Mountain of Sudan

A field experiment was conducted during two successive rainy seasons (2002/03 and 2003/04) at two locations (Kadugli and Korgol ) in the Nuba Mountains of Sudan, to evaluate eight maize varieties. Two local varieties (Dalanj and Kadugli) and six introduced varieties (Hudeiba I, Hudeiba II, Mugtama 45, Pannar 6804, Pannar 6568 and 113). A randomized complete block design in four replications was used. The results showed that, Variety 113 reached 50% tasselling earlier. Pannar 6568 was the tallest, Variety Hudeiba II scored the highest number of ears, number of rows per ear, ears weight and grain yield, whereas, the local variety Kadugli recorded the least grains number and the least grain yield. Positive correlation observed between grain yield and plant height, number of ears, number of seeds per ear and ears weight. Significant differences of grain yield were observed among varieties and locations. A cross locations and seasons, the variety Hudeiba II scored the highest grain yield.