PHOTOSYNTHETIC RESPONSE TO NITROGEN FERTILIZATION IN SUGARCANE UNDER RAINFED AND HIGH-TEMPERATURE CONDITIONS

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AudienciaPúblico en generales_ES
CoberturaMéxicoes_ES
Fecha de ingreso2026-09-15T00:30:13Z
Fecha de publicación2020-01-01
ResumenABSTRACT Nitrogen is the most important element required for plant growth and development and is the primary nutrient limiting sugarcane production. Field experiments under rainfed condition and some periods with high temperature (above 35 °C) were carried out during 2014-2015 at the municipality of Ocampo, Tamaulipas, Mexico. The objective of the study was to determine the effect of varying doses of nitrogen fertilizer on leaf photosynthesis, plant growth, total chlorophyll, and juice quality of sugarcane commercial variety Mex 79-431 in the second ratoon crop. Six nitrogen doses (0, 60, 90, 120, 150, and 180 kg N ha-1) were tested and applied as urea 60 days after harvest, at the beginning of the rainy season. The results of the experiment indicated that the application of nitrogen in ratoon crop had a positive effect on growth and development. It is important to note that further studies are required on the subject, including timing of nitrogen application, application method, soil types, other doses, and other genotypes in the region. The maximum photosynthetic rate (27.68 pmol CO2 m-2 s-1) was attained at PAR 1500 pmol m-2 s-1 with 90 kg N ha-1. The highest yield was recorded in ratoon crop with a dose of 120 kg N ha-1. At harvest, the juice quality did not show significant variations among the treatments imposed.es_ES
Doihttps://doi.org/10.1590/1983-21252020v33n429rces_ES
URIhttps://riuat.uat.edu.mx/handle/123456789/2155
Idiomaeses_ES
EditorialFapUNIFESP (SciELO)es_ES
RelaciónRevista Caatingaes_ES
URL relacionadohttps://doi.org/10.1590/1983-21252020v33n429rces_ES
DerechosAcceso abierto (PDF local verificado)es_ES
Licenciahttp://purl.org/coar/access_right/c_abf2es_ES
FuenteRevista Caatinga
TítuloPHOTOSYNTHETIC RESPONSE TO NITROGEN FERTILIZATION IN SUGARCANE UNDER RAINFED AND HIGH-TEMPERATURE CONDITIONSes_ES
TipoArtículoes_ES
ArbitradoHa sido Arbitradoes_ES
AutorCASTRO-NAVA, SERGIO
AutorHERRERA-SEPÚLVEDA, MARCOS ROLANDO
AutorGARCÍA-GIRÓN, JOSE MANUEL
AutorCASTRO-NAVA, SERGIOes_ES
AutorHERRERA-SEPÚLVEDA, MARCOS ROLANDOes_ES
AutorGARCÍA-GIRÓN, JOSE MANUELes_ES
InstituciónUniversidad Autónoma de Tamaulipas
InstituciónUniversidad Autónoma de Tamaulipases_ES
Número4es_ES
Rango de páginas1140-1149es_ES
URL relacionadahttps://doi.org/10.1590/1983-21252020v33n429rc
Tipo de artículoIndexado
Tipo de artículoIndexadoes_ES
Volumen33es_ES

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