Grain yield

Selection index based on the relative importance of traits and possibilities in breeding popcorn

R. A. Vieira, Rocha, R., Scapim, C. A., Júnior, A. T. Amaral, Vivas, M., Vieira, R. A., Rocha, R., Scapim, C. A., Júnior, A. T. Amaral, Vivas, M., Vieira, R. A., Rocha, R., Scapim, C. A., Júnior, A. T. Amaral, and Vivas, M., Selection index based on the relative importance of traits and possibilities in breeding popcorn, vol. 15, p. -, 2016.

One of the major difficulties faced by popcorn breeders is the negative correlation between popping expansion (PE) and grain yield (GY). It is necessary to overcome this difficulty to obtain promising genotypes. One helpful tool in this process is a selection index because it allows multiple features of interest to be selected. Thus, the present study proposes a new and comprehensive selection index applied in 169 half-sib families in UEM-Co1 and UEM-Co2 composites during two cycles of recurrent selection.

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