Aptitud Combinatoria General Y Específica en La Calidad De Semilla De Líneas S3 De Maíz

Cervantes-Ortiz, Francisco; Hernández-Esparza, Janianny; Rangel-Lucio, José Antonio; Enríquez, Enrique Andrio; Mendoza-Elos, Mariano; Rodríguez-Pérez, Gilberto; Guevara-Acevedo, Luis Patricio

doi:10.35196/rfm.2016.3.259-268

Cited by 5 publications

(2 citation statements)

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“…Los coeficientes de variación fueron desde 6.7 % en ALP hasta 13.7 % en el índice de vigor II, los cuales se consideran aceptables. Estos porcentajes de CV son similares a los reportados por Cervantes-Ortiz et al (2016) en vigor de plántula en un grupo de líneas de maíz.…”

Section: Desglose De Factores De Variaciónunclassified

Efecto De La Fecha De Siembra Sobre La Calidad De Semilla De Trigo en El Bajío , México

et al. 2019

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La calidad de semilla se considera como un patrón que determina el desempeño en el campo o el nivel de su deterioro durante el almacenamiento; la calidad se utiliza como indicador del valor de la semilla con propósitos específicos, inclusive los relacionados con la distribución y comercialización. El objetivo de la presente investigación fue evaluar la calidad física de semilla y el vigor inicial de plántula derivada de genotipos de trigo (Triticum aestivum L.) influenciados por diferentes fechas de siembra. Se establecieron 36 genotipos de trigo en tres fechas de siembra: 15 de noviembre y 15 de diciembre de 2015, y 15 de enero de 2016 en el Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias, Campo Experimental Bajío, localizado en Celaya, Guanajuato, México. Las semillas se sometieron a pruebas analíticas de calidad física como peso volumétrico y biomasa de semilla bajo un diseño experimental completamente aleatorizado; asimismo, se realizó un ensayo en camas de arena bajo condiciones de vivero para evaluar el vigor inicial de plántula a través de velocidad de emergencia, porcentaje de emergencia, biomasa fresca y seca de vástago, altura de plántula e índices de vigor I y II mediante un diseño de bloques completos al azar. Hubo diferencias estadísticas significativas para genotipos y fechas de siembra en los caracteres registrados. La interacción genotipos por fechas de siembra modificó significativamente las características físicas y el vigor de plántula expresado a través de la velocidad de emergencia, altura de plántula e índice de vigor I. La fecha de siembra del 15 de noviembre fue consistente con los valores más altos en la mayoría de las características registradas; por lo que puede ser considerada como la fecha de siembra más apropiada para producir semilla de calidad para siembra de trigo.

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Section: Desglose De Factores De Variaciónunclassified

Efecto De La Fecha De Siembra Sobre La Calidad De Semilla De Trigo en El Bajío , México

et al. 2019

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“…Lines with high GCA effects can be used to develop synthetic varieties, while specific combinations with high yield are used in hybridization schemes. In addition, the effects caused by GCA are associated with additive effects in genetic improvement and can be used for the selection and subsequent hybridization of progenitors with good combining ability (Cervantes- Ortiz et al, 2016).…”

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General and specific combining abilities in a lulo diallel cross (Solanum quitoense Lam.)

Duarte-Alvarado

Burbano

Santander

et al. 2021

Rev. Colomb. Cienc. Hortic.

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Lulo (Solanum quitoense) is a promising agro-industry fruit tree, not only because of its nutritional value, taste, and appearance but also because it provides an alternative production system in mild and moderately cold climate zones. Lulo crop yield and production in the Department of Nariño (Colombia) has decreased in recent years when compared to other producing regions in Colombia. Therefore, the objective of this study was to estimate the effects of the general combining ability (GCA) and the specific combining ability (SCA) in a diallel cross of 10 promising parents in four growing regions of the Department of Nariño for use in breeding programs. A total of 45 hybrid combinations were obtained and assessed with Griffing method 4. The following variables were assessed: days to flowering onset (DFO), number of clusters per branch (NCB), fruit weight (FW), polar axis (PA) of the fruit, and yield (Y). The analysis of variance showed statistical differences for most variables in response to single-cross hybrid effects and locations, except for NCB and Y. Moreover, significant differences were found for the interactions between the GCA and SCA and the hybrids and locations, respectively, meaning that environment must be considered when selecting parents with specific adaptability. The effects of the GCA and SCA promoted higher positive values for the FW and Y in parents 4, 6, and 8 and their combinations. Therefore, these parental genotypes are promising for lulo genetic improvement programs since their additive effects and genetic dominance favor fruit weight and yield.

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Viability of simultaneously selecting for grain yield and seed physiological quality in maize

Costa,

Vilela,

Bruzi

et al. 2024

J. Seed Sci.

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Currently, the demand is not only for more productive corn hybrids, but also for those with high physiological seed quality. Seed quality is considered the sum of genetic, physical, physiological and sanitary attributes that directly interfere in plant vigor. The objective of this study was to evaluate the physiological parameters of the seeds of parents and maize inter varietal hybrids obtained in a reciprocal recurrent selection program through physiological and image analysis techniques and either to study the feasibility of simultaneously selecting for seed physiological quality and grain yield. Two experiments were performed, one in the field and the other in the laboratory. The evaluated traits in the field were days of female flowering, days of male flowering, insertion of the 1st ear, plant height and grain yield. For the physiological quality, the attributes of germination at four days, germination at seven days, vigor by the cold test, emergence speed index, and the ratio of the root length to shoot length were obtained using GroundEye®. Heterosis was measured for the agronomic and physiological traits. Through the contrast between the inter varietal crosse hybrids and reciprocals we measured the maternal effect. The magnitudes of heterosis allowed us to infer that as greater as the number of selection and recombination cycles, on average, greater heterosis for the traits grain yield and seed germination. The correlated response indicated that, high yield intervarietal hybrids have better seed physiological quality.

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Aptitud Combinatoria General Y Específica en La Calidad De Semilla De Líneas S3 De Maíz

Cited by 5 publications

References 20 publications

Efecto De La Fecha De Siembra Sobre La Calidad De Semilla De Trigo en El Bajío , México

Efecto De La Fecha De Siembra Sobre La Calidad De Semilla De Trigo en El Bajío , México

General and specific combining abilities in a lulo diallel cross (Solanum quitoense Lam.)

Viability of simultaneously selecting for grain yield and seed physiological quality in maize

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