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| Format: | Artículo científico |
| Language: | en |
| Published: |
Universidade Estadual de Maringá
2021
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| Online Access: | https://www.redalyc.org/articulo.oa?id=303067924042 https://www.redalyc.org/journal/3030/303067924042/ https://www.redalyc.org/journal/3030/303067924042/html/ https://www.redalyc.org/journal/3030/303067924042/303067924042.epub https://www.redalyc.org/journal/3030/303067924042/movil |
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Table of Contents:
- Selection of S3 progenies of forage maize based on topcrosses with different testers Carlos Augusto daSilva Marcos Ventura Faria Elida Auxiliadora Peralta Paiva Welton Luiz Zaluski Emanuel Gava Diego Fernando De Marck Marcelo Cruz Mendes Mikael Neumann Agrociencias Zea mays L digestibility combining ability acid detergent fiber neutral detergent fiber Maize forage is commonly used as silage in milk and beef cattle livestock production systems. Despite the wide variety of maize hybrids with high potential for grain production, few available hybrids have been developed exclusively for forage aptitude. The present study aimed to select S3 maize progenies derived from the single hybrid AS1572 based on the combining ability of forage traits in topcrosses with testers AG8025, 70.H26.1, and MLP102. The 135 resulting topcross hybrids were assessed in partial diallel in Guarapuava and Rio Bonito do Iguaçu, Paraná State, Brazil. Were evaluated the contents of neutral detergent fiber (NDF, %DM) and acid detergent fiber (ADF, %DM), forage dry matter yield (DMY, t ha-1), and in situ digestibility of forage dry matter (DIG, %DM). For all evaluated traits, the variability allowed us to select superior progenies. Progenies 3.1, 22.1, and 39.1stood out in terms of NDF, ADF, and DIG, whereas progenies 47.1, 73.1, 79.1, and 90.2 were efficient in increasing the forage dry matter yield. The testers AG8025 and 70.H26.1, of narrow genetic base, are the best to explore genetic variability among progenies. 2021 artículo científico 1679-9275 https://www.redalyc.org/articulo.oa?id=303067924042 https://www.redalyc.org/journal/3030/303067924042/ https://www.redalyc.org/journal/3030/303067924042/html/ https://www.redalyc.org/journal/3030/303067924042/303067924042.epub https://www.redalyc.org/journal/3030/303067924042/movil 10.4025/actasciagron.v43i1.51223 en http://www.redalyc.org/revista.oa?id=3030 Acta Scientiarum. Agronomy application/pdf Universidade Estadual de Maringá Acta Scientiarum. Agronomy (Brasil) Vol.43