Cytoplasmic effect and heritability of some characters in three way cross hybrids of maize (Zea mays L.)
1988
Saadalls, H.A. | Auad, S.A. | Kadim, Z.K. (Scientific Research Council, Baghdad (Iraq). Agriculture and Water Resources Research Centre, P.O. Box 2416)
The data of six three way cross hybrids were analysed according to "Nested". Significant differences among hybrids were observed for mid-silking, plant height, ear height, number of rows/ear and ear length. No maternal effect was observed on all characters. Inbred line CO125 combinations gave a greater plant and ear height and number of rows/ear. Heritability estimation for the studied characters were: for plant height 70%, ear height 55%, date of-silking 37%, date of mid-tasseling 0%, number of rows/ear 87% and ear length 9%. The results obtained suggested that successful improvement through mass selection could be achieved for plant height, ear height and number of rows/ear. The inbred line CO125 could be used as a tester as it showed to be a good combiner for plant and ear height and number of rows/ear
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