THE CONTROL OF YELLOW LATEX IN MANGOSTEEN FRUIT THROUGH IRRIGATION AND FERTILIZER APPLICATION
Yellow latex on fruit is the most prominent constraint to export of mangosteen from Indonesia. Hence, the control of yellow latex is critical to increasing the number of fruit that are suitable for consumers. The objective of this research was to determine the techniques for controlling yellow latex formation. The research was conducted at the farmer orchard in Lima Puluh Kota District, a mangosteen production center of West Sumatra Province. A factorial experiment in a randomized block design with 2 factors and 3 replications was used. The first factor was irrigation (with or without irrigation) and the second factor was fertilizer (no fertilizer, NPK fertilizer, NPK+Ca1 (1000 g Urea + 500 g SP-36 + 1000 g KCl + 1000 g CaCO3), NPK+Ca2 (1000 g Urea + 500 g SP-36 + 1000 g KCl + 1500 g CaCO3), NPK+Mg+Ca1 and NPK+Mg+Ca2. Continuous drip irrigation was applied from flowering until harvest. Fertilizer was applied at the early flowering stage. There was an interaction between application of drip irrigation and fertilization on percentage of fruit with yellow latex in the fruit endocarp. Continuous drip irrigation reduced the percentage of fruit with yellow latex on the exocarp and significantly increased the percentage of fruit free from yellow latex. Application of fertilizer was able to reduce yellow latex in the fruit endocarp, with the NPK+Ca2 treatment giving the best result.
Syah, M.J.A., Mansyah, E., Affandi, , Purnama, T. and Fatria, D. (2013). THE CONTROL OF YELLOW LATEX IN MANGOSTEEN FRUIT THROUGH IRRIGATION AND FERTILIZER APPLICATION. Acta Hortic. 975, 449-454
mangosteen, yellow latex, control practices