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Pakistan Journal of Biological Sciences

Year: 2002 | Volume: 5 | Issue: 3 | Page No.: 251-254
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Authors

G. B. Saleh

S. A. S. Alawi

K. Panjaitan

Keywords

Research Article

Performance, Correlation and Heritability Studies on Selected Sweet Corn Synthetic Populations

G. B. Saleh, S. A. S. Alawi and K. Panjaitan
Nine advanced selected synthetic populations and a check variety of sweet corn were used to compare the performance among populations, to determine correlations between important traits in the populations, and to estimate a broad-sense heritability of the traits. The populations showed a wide range of performance in fresh ear yield and other traits and yield components measured. The potential of two populations, MMX368NS and P368 was revealed, and could be short-listed for further testing and selection before release as new varieties. Population MMX368NS, in particular possessed high ear yield of 8750 kg/ha, high number of ears per hectare, moderate plant height, moderate maturity, superior ear measurements as yield components and moderate brix content. Number of ears per hectare, ear weight, ear length and number of kernels per ear row were found to be most correlated with ear yield, while plant height, days to tasseling and ear length were the traits found to be most heritable in these populations of sweet corn. This information would be greatly useful to help breeders in making appropriate selection in genetic improvement of tropical sweet corn populations.
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