Growth Response And Antioxidant Content Of Aloe Vera L. Plant Under Different Types And Dosage Of Green Mulch In Sandy Soil
The research aims to determine the effect of mulch types and dosage on the growth and nutritional content of Aloe vera L. The research was conducted from December 2015 to October 2016, in Kretek Depok subdistrict, Bantul, Yogyakarta. There were two factors arranged in factorial Randomized Completely Block Design with three replications. The first factor was the types of green mulch consisting of five levels, i.e. control (without mulch), gliricidia leaves, cashew tree leaves, and casuarina leaves. The second factor was the dosage of green mulch consisting of three levels i.e.: 5.0; 7.5 and 10.0 ton. ha-1. Observation was made on the growth component and nutritional content. Growth component includes fresh and dry weight of leaf, growth index, and relative growth rate, while antioxidant component includes concentration of provitamin A, vitamin C, provitamin E, and antioxidant value. Data were analysed with analysis of variance and subjected to Duncan's Multiple Range Test at 5% significance level. The result showed interaction between types and dosage of green mulch on all variables. The highest growth and antioxidant component were obtained on the addition of 7,5 ton. ha-1 gliricidia and 10 ton ha-1 of other green mulch.
Keywords: Aloe vera, green mulch, growth component, nutritional content.