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Pak. J. Bot., 46(1): 127-134, 2014. |
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Updated: 15-01-14 | ||||
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IODINE APPLICATION INCREASED ASCORBIC ACID CONTENT AND MODIFIED THE VASCULAR TISSUE IN OPUNTIA FICUS-INDICA L.
HERMILA TRINIDAD GARCÍA OSUNA1, ADALBERTO BENAVIDES MENDOZA2*, CATALINA RIVAS MORALES1, EUFEMIA MORALES RUBIO1, JULIA VERDE STAR1 AND RENÉ MIRANDA RUVALCABA3
Abstract: The objective of this study was to discern the effect of applying both iodide and iodate to Opuntia ficus indica irrigation. The effect of iodate (KIO3, 10-4 M) and iodide (KI, 10-4 M) on plant growth, yield and morphology was studied. Experiments were carried in three samples under tunnel conditions. In the last sampling, iodine species (KIO3, KI) caused a negative effect in biomass. The amount of ascorbic acid, however, was increased over 51% in both iodine treatments. Phosphorus (0.26%), iron (50 ppm), and magnesium (1402 ppm) increases were also observed with iodate treatment in the first sampling, and increases in potassium (46.8 ppm) were apparent in the second. Iodide treatment increased the amounts of copper (1.02 ppm) and manganese (32.80 ppm) in the first sampling. Iodate treatment modified the number of xylem vessels and increased both the mucilage area and amount of druses. In general this study shows that iodate increases the amount of ascorbic acid and the morphology of the vascular tissue.
1Universidad Autónoma de Nuevo León, Departamento de Química, Facultad de Ciencias Biologicas. 66451, San Nicolás de los Garza, Nuevo León, México. 2Universidad Autónoma Agraria Antonio Narro, Departamento de Horticultura. 25315 Saltillo, Coahuila, México. 3 AUniversidad Nacional Autónoma de México, Departamento de Química, Facultad de Estudios Superiores, 54740, Cautitlán Izcalli, Estado de México, México, * Corresponding author’s e-mail: abenmen@gmail.com |
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