‘H-563’, Híbrido De Maíz Tropical Tolerante a La Enfermedad “Mancha De Asfalto”

Montiel, Noel Orlando Gómez; Camarillo, Marino González; Almaguer, Michel Guerra; Macías, Mauro Sierra; Estrada, Bulmaro Coutiño; Salgado, Margarito Manjarrez

doi:10.35196/rfm.2013.1.81

Cited by 2 publications

(3 citation statements)

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“…That is valid in commercial sowings for the purpose of obtaining grains or in hybrid seed production. In these cases, technical recommendations often only indicate the days to flowering of the parents and, if applicable, differential plantings between females and males based on the number of days [20,[37][38][39][40]. Phenological characterization of parents based on GDD allows defining with greater precision the optimal sowing date to achieve floral synchrony [16,41].…”

Section: Hybrid Seed Production 321 Floral Synchronization In Hybrmentioning

confidence: 99%

“…When comparing the seed production complexity of these six hybrids against threeway cross public hybrids adapted to the tropical lowlands of Mexico, hybrid H-520 stands out, for which the simultaneous sowing of its parents is recommended [44]. A more complex example is H-563, for which for the autumn-winter crop season it is recommended to sow the male first and the female 11 days after [38]. In these two hybrids, a 4:2 female:male rows ratio is also recommended, which is generally the ratio used for seed production of single-cross hybrids, for which the female is an inbred line that does not have the same vigor as an FSC [45].…”

Section: Clthy15031mentioning

confidence: 99%

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Effective Seed Yield and Flowering Synchrony of Parents of CIMMYT Three-Way-Cross Tropical Maize Hybrids

et al. 2021

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Genotype, environmental temperature, and agronomic management of parents influence seed yield in three-way cross hybrid maize seed production. The objective of this research was to generate information on the seed production of six three-way cross hybrids and their progenitors, adapted to tropical lowlands. Data on days to—and duration of—flowering, distance to spike and stigmas, and seed yield of five female single crosses and five male inbred lines were recorded for different combinations of four planting densities and four sowing dates in Mexico. The effect of planting density was not significant. The male inbred line T10 was the earliest and highest seed yield and T31 the latest, occupying second place in yield. The single crosses T32/T10 and T13/T14 were the earliest and had the highest effective seed yield. At the earliest sowing date, the females were later in their flowering, accumulated fewer growing degree days (GDD), and obtained higher yields since the grain-filling period coincided with hot days and cool nights. To achieve greater floral synchronization and therefore greater production of hybrid seed, differential planting dates for parents are recommended based on information from the accumulated GDD of each parent. The three-way cross hybrids were classified according to the expected seed yield of the females and the complexity in the synchronization of flowering of their parents.

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Section: Hybrid Seed Production 321 Floral Synchronization In Hybrmentioning

confidence: 99%

Section: Clthy15031mentioning

confidence: 99%

Effective Seed Yield and Flowering Synchrony of Parents of CIMMYT Three-Way-Cross Tropical Maize Hybrids

et al. 2021

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“…The commercial trilinear control hybrids H-563 and H-565 exhibited greater production of green fodder at a population density of 75 000 plants ha -1 , which have adapted to tropical climates, with a tortilla dough yield of 1.8 and 1.9 kg per 1 kg of maize (Gómez et al, 2013a;2013b). The H-564C hybrid produced high RFV, good cob coverage, plant and cob health and dough and tortilla quality is good (Sierra et al, 2011).…”

Section: Results Analysis Of Variance and Comparison Of Meansmentioning

confidence: 99%

Genotipos de maíz con potencial forrajero para las condiciones de secano del estado de Guerrero, México

Alberto

García

Montiel

et al. 2019

Remexca

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El desarrollo de genotipos de maíz (Zea mays L.) para producción de forraje en condiciones de secano es incipiente, debido a que no se ha difundido variedades específicas para tal fin. El objetivo fue identificar híbridos con potencial forrajero para condiciones de secano del estado de Guerrero, México. Se evaluaron 25 genotipos de maíz en condiciones de secano, bajo un diseño experimental de bloques completos al azar con tres repeticiones. La unidad experimental consistió de cuatro surcos de 5 m de longitud, 0.8 m de ancho entre surcos, a 0.17 m entre plantas para obtener una densidad de población de 73 529 plantas ha-1. Se fertilizó con la fórmula 120N-60P-00K. Los caracteres estudiados fueron: altura de planta, altura de mazorca, peso de planta, peso de mazorca, rendimiento de forraje verde, de grano y de forraje seco. Los resultados indicaron diferencias altamente significativas en los caracteres estudiados. Los híbridos trilineales experimentales H-H562xHCF2-91, H-H565xHCF2-91, H-H516xHCF2-91, híbrido de cruza simple 329x97 y el testigo H-564C destacaron en rendimiento de forraje verde y los híbridos de cruza simple 1275x1277, 1278x1276, híbridos experimentales H-H516xHCF2-91 y H-H565xHCF2-91 expresaron mayor rendimiento de forraje seco.

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‘H-563’, Híbrido De Maíz Tropical Tolerante a La Enfermedad “Mancha De Asfalto”

Cited by 2 publications

References 0 publications

Effective Seed Yield and Flowering Synchrony of Parents of CIMMYT Three-Way-Cross Tropical Maize Hybrids

Effective Seed Yield and Flowering Synchrony of Parents of CIMMYT Three-Way-Cross Tropical Maize Hybrids

Genotipos de maíz con potencial forrajero para las condiciones de secano del estado de Guerrero, México

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