Grain growth components of maize prolyphic cultivars

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AudienciaPúblico en generales_ES
CoberturaMéxicoes_ES
Fecha de ingreso2026-10-05T16:32:18Z
Fecha de publicación2004-01-01
ResumenMaize grain yield is determined by grain number per plant and the individual grain weight, the last one is defined by the effective grain filling period and grain filling rate; these have relationships among them and with environmental factors which impact on growth and plant development. The objective of this investigation was to determine the effect of population density on grain biomass accumulation of maize prolyphic cultivars. Six cultivars were evaluated at Guemez Tam. in three population densities: 25 000, 50 000 and 75 000 plants/ha. The individual grain weight, effective grain filling period and grain filling rate were determined in primary and secondary ears. When population density increased from 25 000 to 75 000 plants/ha the individual grain weight decreased in 8 and 9 \% in primary and secondary ears, respectively, due to a lower grain filling period. Population density did not have effect on grain filling rate in primary and secondary ears. The H-437 cultivar had the largest individual grain weight in primary and secondary ears at 294.2 and 287.5 g, respectively, due to its highest grain filling period (42.4 and 41.6 d, respectively) and grain filling rate (6.90 y 6.91 mg d(-1) respectively); the individual grain weight and grain growth components were significantly highest in the primary ears (P > 0.05) that in the secondary ear.es_ES
URIhttps://riuat.uat.edu.mx/handle/123456789/4131
Idiomaeses_ES
EditorialSOC MEXICANA FITOGENETICAes_ES
RelaciónRevista Fitotecnia Mexicanaes_ES
DerechosAcceso restringido / Suscripción (Metadatos de producción científica)es_ES
Licenciahttp://purl.org/coar/access_right/c_16eces_ES
FuenteRevista Fitotecnia Mexicana
Palabra claveZea mays L.es_ES
Palabra claveprolificacyes_ES
Palabra clavegrain filling ratees_ES
Palabra claveeffective grain filling periodes_ES
Palabra clavepopulation densityes_ES
TítuloGrain growth components of maize prolyphic cultivarses_ES
TipoArtículoes_ES
ArbitradoHa sido Arbitradoes_ES
AutorLopez Santillan, Jose Alberto
AutorReyes Mendez, Cesar A.
AutorCastro Nava, Sergio
AutorBriones Encinia, Florencio
AutorLopez Santillan, Jose Albertoes_ES
AutorReyes Mendez, Cesar A.es_ES
AutorCastro Nava, Sergioes_ES
AutorBriones Encinia, Florencioes_ES
InstituciónUniversidad Autónoma de Tamaulipas
InstituciónUniversidad Autónoma de Tamaulipases_ES
NúmeroSIes_ES
Rango de páginas23-26es_ES
Tipo de artículoIndexado
Tipo de artículoIndexadoes_ES
Volumen27es_ES

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