Yellow Sap Contamination on Mangosteen (Garcinia mangostana L.) Fruit in Relation to Soil Calcium Contents and Plant Tissue
. Martias
Indonesia Tropical Fruits Research Institute, Indonesia, Jl. Raya Solok-Aripan Km. 8, Solok 27301, West Sumatra, Indonesia.
Titin Purnama
Indonesia Tropical Fruits Research Institute, Indonesia, Jl. Raya Solok-Aripan Km. 8, Solok 27301, West Sumatra, Indonesia.
. Riska
Indonesia Tropical Fruits Research Institute, Indonesia, Jl. Raya Solok-Aripan Km. 8, Solok 27301, West Sumatra, Indonesia.
. Affandi
Indonesia Tropical Fruits Research Institute, Indonesia, Jl. Raya Solok-Aripan Km. 8, Solok 27301, West Sumatra, Indonesia.
Sri Yuliati
Indonesia Tropical Fruits Research Institute, Indonesia, Jl. Raya Solok-Aripan Km. 8, Solok 27301, West Sumatra, Indonesia.
Nini Marta
Indonesia Tropical Fruits Research Institute, Indonesia, Jl. Raya Solok-Aripan Km. 8, Solok 27301, West Sumatra, Indonesia.
Tri Budiyanti
Indonesia Tropical Fruits Research Institute, Indonesia, Jl. Raya Solok-Aripan Km. 8, Solok 27301, West Sumatra, Indonesia.
Deni Emilda
Indonesia Tropical Fruits Research Institute, Indonesia, Jl. Raya Solok-Aripan Km. 8, Solok 27301, West Sumatra, Indonesia.
Dewi Fatria
Indonesia Tropical Fruits Research Institute, Indonesia, Jl. Raya Solok-Aripan Km. 8, Solok 27301, West Sumatra, Indonesia.
. Hendri
Indonesia Tropical Fruits Research Institute, Indonesia, Jl. Raya Solok-Aripan Km. 8, Solok 27301, West Sumatra, Indonesia.
I. G. K. D. Arsana
Bali Assessment Institute for Agricultural Technology, Jl. By pass Ngurah Rai No.1A, Denpasar 80222, Bali, Indonesia.
Ratna W. Arief
Assessment Institute for Agriculture Technology of Lampung. Jl. Z.A. Pagar Alam No. 1 A, Bandar Lampung City35145, Lampung, Indonesia.
Robet Asnawi
Assessment Institute for Agriculture Technology of Lampung. Jl. Z.A. Pagar Alam No. 1 A, Bandar Lampung City35145, Lampung, Indonesia.
Made J. Mejaya *
Indonesian Legumes and Tuber Crops Research Institute (ILETRI), Jl. Raya Kendakpayak Km 8 PO Box 66, Malang 65101, East Java, Indonesia.
*Author to whom correspondence should be addressed.
Abstract
Yellow sap contamination (YSC) is one of the mangosteen quality constrain in Indonesia. Calcium is the prominent nutrient that influence the incidence of yellow sap contamination. A research with objective to observe the relationship between incidence YSC and Ca availability in soil as well as plant tissue was done in ten locations in West Sumatra, Lampung and West Java provinces. Purposive random sampling method was used to determine the site locations. The plant and soil samples were collected from 10 sites and ten tree per sites. Correlation analysis was used to measure the relationship between incidence YSC and Ca content in fruit endocarp, mesocarp, peel, soil and leaf. The result showed that there was a variation of incidence YSC in site location with range of 8.7%−54.04%; 4.0−51.6%; and 17.7−78.6% for percentage of YSC in fruit flesh, segmentation and peel, respectively. Ca content in soil, endocarp, mesocarp and leaf were given significantly negative correlation toward incidence YSC in fruit flesh and segmentation. Ca content in leaf part correlates significantly to Ca availability in soil, endocarp and mesocarp. Ca content in leaf in the range of 1.40- 1.70% indicates YSC less than 10%.
Keywords: Yellow sap, calcium, soil, plant tissue, mangosteen