Publication:
Physiological response of sugarcane (Saccharum spontaneum, cv US 67-22-2) to nitrogen levels

dc.contributor.advisor de la Torre, Winston
dc.contributor.author Torres-Justiniano, Salvio
dc.contributor.college College of Agricultural Sciences en_US
dc.contributor.committee Pérez-Alegría, Luis R.
dc.contributor.committee Olmeda, Rafael F.
dc.contributor.department Department of General Programs in Agricultural Sciences en_US
dc.contributor.representative Salas Quintana, Salvador
dc.date.accessioned 2018-04-09T15:42:46Z
dc.date.available 2018-04-09T15:42:46Z
dc.date.issued 2005
dc.description.abstract This experiment quantified the agronomical and physiological response of environmental cane US 67-22-2 to N fertilization levels, and developed mathematical relationships between dependent traits and independent climatological parameters. A preliminary greenhouse experiment, was the foundation for the design of a field experiment conducted on a Vertisol soil at Puerto Rico, in which the sugarcane response to four N levels (0, 448, 896, 1344 Kg N/ha) and three harvest intervals (HI) (240, 270, 300 days after planting) was studied. At the greenhouse experiment and in terms of leaf area, plant height and number of leaves, the plants with N were significantly superior to the control, and statistically similar among them. At the field experiment it was observed that the application of 448 Kg N/ha is enough to obtain adequate plant cane yield, photosynthetic rate and relative chlorophyll content. The optimum dry matter yield (25,811 Kg/ha) was obtained at 300 days HI. en_US
dc.description.abstract Este experimento midió la respuesta de la variedad de caña US 67-22-2 a niveles de N y desarrollo relaciones matemáticas entre variables dependientes y parámetros climatológicos independientes. Un estudio preliminar de invernadero sirvió como base para el experimento de campo realizado en un suelo Vertisol, en el cual se estudio la respuesta de la caña a cuatro niveles de N (0, 448, 896, 1344 Kg/ha) y tres intervalos de cosechas (IC) (240, 270, 300 días). En el invernadero y en términos de área foliar, altura de planta y número de hojas. Las plantas con N resultaron significativamente superior al control y estadísticamente similares entre ellas. En el experimento de campo se observo una producción adecuada, una buena tasa fotosintética, y un buen contenido relativo de clorofila con la aplicación de 448 Kg N/ha. La producción optima de materia seca (25,811 Kg/ha) se obtuvo a un IC de 300 días. en_US
dc.description.graduationYear 2005 en_US
dc.identifier.uri https://hdl.handle.net/20.500.11801/447
dc.language.iso en en_US
dc.rights.holder (c) 2005 Salvio Torres-Justiniano en_US
dc.rights.license All rights reserved en_US
dc.subject Mathematical en_US
dc.subject Climatological parameters en_US
dc.subject Vertisol soil en_US
dc.subject.lcsh Sugarcane--Field experiments en_US
dc.subject.lcsh Crops and nitrogen en_US
dc.subject.lcsh Soils--Nitrogen content en_US
dc.subject.lcsh Nitrogen fertilizers en_US
dc.title Physiological response of sugarcane (Saccharum spontaneum, cv US 67-22-2) to nitrogen levels en_US
dc.type Thesis en_US
dspace.entity.type Publication
thesis.degree.discipline Agronomy en_US
thesis.degree.level M.S. en_US
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