TY  - EJOU
AU  - Martias, 
AU  - Fatria, Dewi 
AU  - Siregar, Adha Fatmah 
AU  - Praptana, Raden Heru 
AU  - Kasno, Antonius 
AU  - Yufdy, Muhammad Prama 
AU  - Riska, 
AU  - Indriyani, Ni Luh Putu 
AU  - Affandi, 
AU  - Budiyanti, Tri 
AU  - Hadiati, Sri 
AU  - Mansyah, Ellina 
AU  - Muas, Irwan 
AU  - Jumjunidang, 
AU  - Istianto, Mizu 
AU  - Mulyono, Djoko 
AU  - Cempaka, Intan Gilang 
AU  - Dewi, Triyani 
AU  - Supriyo, Agus 
AU  - Nuryanto, Bambang 

TI  - Critical Concentration of Zinc for Increasing Production and Quality of Mangosteen Fruit in West Sumatera, Indonesia
T2  - Phyton-International Journal of Experimental Botany

PY  - 2024
VL  - 93
IS  - 11
SN  - 1851-5657

AB  - West Sumatera is one of the largest mangosteen production centers in Indonesia. After the 2019 harvest season, there were variations in fruit production and quality which indicated symptoms of zinc (Zn) deficiency. This study evaluates the status of Zn for increasing the production and quality of mangosteen fruit Ratu Kamang cv. The study was conducting using the observation method in Lima Puluh Kota, West Sumatera from January to December 2020. This study used ten mangosteen trees aged 23 years in three locations selected purposively. Parameters observed included soil properties, leaf nutrients, number of fruits; fruit, rind, aril and seed weights, percentage of fruit scars (FS) and percentage of fruit contaminated with yellow sap (YSC). The relationship between Zn concentration in leaves and fruit production and quality was analyzed using Pearson’s correlation and regression models. The results showed that Zn played a role in increasing the production and quality of mangosteen fruit at certain concentration ranges in the leaves. Zinc concentrations of 23.45–30.00 mg/kg play a role in increasing production, while Zn concentrations of 26.29–30.29 mg/kg play a role in increasing quality. The lowest incidence of FS and YSC was found in trees with Zn concentration in the leaves between 30.00–32.00 mg/kg. Zinc concentration in the leaves of 30.00 mg/kg was the critical concentration in increasing the production and quality of mangosteen fruit under local cultivation conditions. Zinc has an antagonistic relationship to iron (Fe) and copper (Cu) in leaf tissue.
KW  - Mangosteen fruit; fertilizer management; fruit grade; production; level of zinc

DO  - 10.32604/phyton.2024.055686