Recurrent selection of popcorn composites UEMCO1 and UEM-CO2 based on selection indices
| Autor: | Renato da Rocha, Carlos Alberto Scapim, Antonio Teixeira do Amaral Júnior, Rafael Augusto Vieira |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
Truncation selection popping expansion grain yield lcsh:Biotechnology Recurrent selection 04 agricultural and veterinary sciences multiple-trait selection Biology lcsh:Plant culture 01 natural sciences Zea mays L lcsh:TP248.13-248.65 040103 agronomy & agriculture Trait 0401 agriculture forestry and fisheries General Earth and Planetary Sciences Grain yield lcsh:SB1-1110 Composite material Selection (genetic algorithm) 010606 plant biology & botany General Environmental Science |
| Zdroj: | Crop Breeding and Applied Biotechnology, Vol 17, Iss 3, Pp 260-266 (2017) |
| ISSN: | 1984-7033 1518-7853 |
| Popis: | Selection indices were applied to data sets of 169 half-sib families of the popcorn composites UEM-Co1 and UEM-Co2 in four cycles of recurrent selection. From 2005 to 2008, the experiments were arranged in a 13 by 13 lattice square design, with two replications per cycle and composite. Genetic gains for popping expansion (PE) and grain yield (GY) were estimated based on several selection indices and truncation selection. The magnitude and balance of gains estimated for each trait by the indices were compared by an auxiliary statistical value (Ci). This value Ci consists of an arbitrary value, resulting from differences between the gains estimated for n traits by truncation selection and by index i. The indices of Subandi and Mulamba and Mock were the most promising to estimate high and balanced genetic gains for PE and GY in recurrent selection of half-sib popcorn families. |
| Databáze: | OpenAIRE |
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