Aman J, Bantte K, Alamerew S and Tolera B*
Maize is an important food crop in Ethiopia. However, its nutritional value is deficient because its seed protein lacks two essential amino acids (lysine and tryptophan). The aim of the present study was to evaluate the performance of quality protein maize (QPM) hybrids developed by CIMMYT. 43 QPM hybrids and 2 control plants were tested using a 5x9 alpha grid design with two replicates. The data were subjected to ANOVA using SAS version 9.2. The ANOVA revealed very significant differences among genotypes (p < 0.001) for 50% tassel formation, ear height, plant number and grain yield. High phenotypic variances were observed in ear height, number of rows/ear, number of grains/row and grain yield. The phenotypic coefficient of variation and the genotypic coefficient of variation were high for ear height, plant number, number of rows/ear, number of grains/row and grain yield. The maximum (0.91) and minimum (0.23) broad sense heritability were recorded for number of rows/spikelet and days to 50% tassel formation, respectively.