Concentración de fructosa en frutos de toronja (Citrus paradisi Macf.) en desarrollo
Fructose concentration in fruit development in grapefruit (Citrus paradisi Macf.)
DOI:
https://doi.org/10.54167/tch.v10i1.580Keywords:
girdling, carbohydrates, citrus, gibberellic acid, foliar ureaAbstract
This research was conducted during the production year 2014-15 on a 18-year in a grapefruit (Citrus paradasi Macf.) grove, Rio Red variety in the municipality of General Teran, N.L. Mexico. The objective was to evaluate the concentration of fructose in small fruits from trees with a high production year («on») and others with a low production year («off») throughout the whole productive cycle, as a result of the application of gibberellic acid (Acigib 10 % of GA3 , 25 ppm), foliar urea (1 kg 100 L-1) and girdling. Fructose was quantified in fruits of grapefruit at 30, 60 and 90 days after anthesis (DDA). Fructose analysis was done by High Pressure Liquid Chromatography (HPLC). According with the results, application of foliar urea and GA3 on trees «on» at 30 DDA, resulted in the highest values in the concentration of fructose in fruit. Treatments applied at 60 DDA resulted in not statistically differences for fructose concentration in fruits. Fruit fructose concentration from samples at 90 DDA showed statistical differences in trees «on» treated with foliar urea and girdling obtained the lowest concentration of fructose. The behavior of the concentration of fructose between samples was increased in all treatments of trees «on» and «off».
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References
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