Combining ability and potential of s1 popcorn progenies for early selection



Título del documento: Combining ability and potential of s1 popcorn progenies for early selection
Revista: Acta scientiarum. Agronomy
Base de datos: PERIÓDICA
Número de sistema: 000459574
ISSN: 1679-9275
Autores: 1
2
3
2
4
2
Instituciones: 1Ingredion Brasil, Mogi Guacu, Sao Paulo. Brasil
2Instituto Agronomico, Centro de Graos e Fibras, Campinas, Sao Paulo. Brasil
3Centro de Tecnologia Canavieira, Piracicaba, Sao Paulo. Brasil
4Agencia Paulista de Tecnologia dos Agronegocios, Polo Regional de Desenvolvimento Tecnologico Capao Bonito, Capao Bonito, Sao Paulo. Brasil
Año:
Volumen: 44
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Experimental, analítico
Resumen en inglés Evaluation of combined ability can eliminate lines that are inefficient and enable the subsequent program steps to be more successful. The objective of this study was to predict the general (gi) and specific (sij) combination ability of popcorn S1 progenies for early selection. A total of 288 topcrosses were performed under a randomized complete block design with two replicates at two sites (Campinas and Capão Bonito, São Paulo State, Brazil). Diallel analyses were performed using mixed models and the maximum likelihood restricted/best unbiased linear prediction method. Evaluated traits included grain yield (GY; kg ha-1), weight of 100 grains (g), and popping expansion (PE; mL g-1). Ear components were also evaluated, including ear length, ear diameter (cm), and the number of grain rows (unit). The S1 progeny 32 presented the highest gi for GY in Campinas, whereas progeny 46 presented the highest gi for GY in Capão Bonito. The S1 progeny, 114 was an important parent for the popcorn breeding program, because it presented high gi for the traits of agronomic interest at both sites. Combination 86×IAC12 exhibited a high sij, and the 86 parent presented the second-highest gi for PE in Campinas, and it should be used for high PE genotypes
Disciplinas: Agrociencias,
Biología
Palabras clave: Gramíneas,
Genética,
Fitotecnia,
REML/BLUP,
Maíz palomero,
Dialelos,
Híbridos
Keyword: Gramineae,
Genetics,
Crop husbandry,
Popcorn,
REML/BLUP,
Dialleles,
Hybrids
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