Métodos de Griffing: revisión sobre su importancia y aplicación en fitomejoramiento convencional

Guevara, Claudia Saavedra; López, Delfina de Jesús Pérez; Huerta, Andrés González; Martínez, Julio; Arriaga, Martín Rubí; Dávila, José Francisco Ramírez

doi:10.29312/remexca.v12i7.3040

Cited by 4 publications

(1 citation statement)

References 42 publications

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“…Four simple hybrids generated from a dialelic design were evaluated using Griffing I. method (Saavedra-Guevara et al, 2021), which consisted of direct crosses, reciprocal crosses with the p 2 families (complete dialelic) and included p, DC and RC (p +Cp 2 + Cp 2 ), in six lines of white grain maize, and five of yellow grain. In this equation, p: represents the parents; DC: direct crosses; RC: reciprocal crosses; Cp 2 : square of the cross of the parents.…”

Section: Plant Material Treatments and Experimental Designmentioning

confidence: 99%

Morphology and yield components of single hybrids white and yellow maize in the Yaqui Valley

Pérez-López,

Algentel-Martínez,

Peñuelas-Rubio

et al. 2024

Agraria

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Maize breeding has evolved increasingly with the emergence of new scientific technologies, mainly hybridization. This technique allows new genetic combinations to be obtained in specific areas where some genotypes have desirable characteristics. By crossing them, hybrids with better morphological, physiological and agronomic performance are obtained. Based on the above, the objective of this research was to evaluate the morphological and reproductive variables, final plant height (FPH), ear height (EH), number of leaves above (NLAE) and below (NLBE) the ear, grain depth (GD), number of rows per ear (NRE), number of grains per row (NGE), volumetric weight (VW), and grain yield (Y), in four simple maize hybrids, two white-grain hybrids (WG1 and WG2), and two yellow-grain hybrids (YG1 and YG2). The crop was established in the period December-May 2023. These hybrids come from a dialelic of homozygous lines, carried out at the Tecnológico Nacional de México, campus Valle del Yaqui. Significant differences were found in all the variables evaluated. The GBI hybrid showed the highest FPH (264 cm), EF (159 cm) and NLAE (9.8). Similarly, this hybrid had the highest GD (2.1 mm) and NRE ( 16). The YG1 hybrid showed a higher number of grains per row (32) and volumetric weight (389 g), without differences from WG1. These two hybrids (WG1 and YG1) had the highest grain yield (11.8 t ha -1 ). There was a positive and significant correlation between several variables, with the highest correlation between FPH and NLAE and between the variables NGE and Y.

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Section: Plant Material Treatments and Experimental Designmentioning

confidence: 99%

Morphology and yield components of single hybrids white and yellow maize in the Yaqui Valley

Pérez-López,

Algentel-Martínez,

Peñuelas-Rubio

et al. 2024

Agraria

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Protein and carbohydrates mobilization rate and their relationship with grain yield in simple hybrids of white and yellow maize

López,

Argentel-Martínez,

Peñuelas-Rubio

et al. 2024

Vegetos

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Uso de Opstat para validar resultados en un dialélico parcial con ocho líneas de maíz evaluadas en un ambiente

Jasso-Bobadilla

González-Huerta²,

Pérez-López³

et al. 2022

Remexca

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Se describen los procedimientos de muestreo en un experimento dialélico parcial aplicando el método de Kempthorne y Curnow (1961) a ocho líneas de maíz (S7) derivadas de la misma variedad, utilizadas cada una en cinco cruzamientos (s= 5). Para los 20 híbridos de cruza simple se indican los cálculos para obtener el análisis de varianza para un ambiente con un diseño experimental de bloques completos al azar con cuatro repeticiones. Los efectos entre cruzas se dividen en aptitud combinatoria general y específica utilizando álgebra de matrices, se estiman los efectos de gi y Sij, para cada progenitor y en cada cruza, respectivamente. Además, se calculan los componentes de varianza y las heredabilidades en sentido amplio y estrecho. En todas las etapas se indica como verificar los cálculos empleando una calculadora de escritorio y, finalmente, se validan los resultados usando el paquete estadístico Opstat.

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Métodos de Griffing: revisión sobre su importancia y aplicación en fitomejoramiento convencional

Cited by 4 publications

References 42 publications

Morphology and yield components of single hybrids white and yellow maize in the Yaqui Valley

Morphology and yield components of single hybrids white and yellow maize in the Yaqui Valley

Protein and carbohydrates mobilization rate and their relationship with grain yield in simple hybrids of white and yellow maize

Uso de Opstat para validar resultados en un dialélico parcial con ocho líneas de maíz evaluadas en un ambiente

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