Optimizing Growth, Yield and Essential Oil Composition of Coriander (Coriandrum sativum L.) Through Integrated Compost Fertilization and Antioxidant Foliar Treatment

Abstract

For examining the influence of various compost rates (0.0, 5.0, 10.0 and 20.0 ton/ hectare), various acid types (control as tap water, proline acid, ascorbic acid and proline + ascorbic acid each 100 ppm), an experimental filed was established at Agric. Fac. experimental Farm, Misurata University, Libya during 2024/2025 year. The experimental design was split plot in three replicates. The main plots were compost rates, whereas, the sub-plot was occupied by proline and ascorbic acid. Any compost rate significantly enhances coriander height, branch number and plant fresh and dry weights, fruit yield per plant and per hectare as well as volatile oil yield characters compared to control. Moreover, the highest rate of compost (20 ton/ hectare) significantly produced the highest values in growth, fruit yield components and volatile oil production compared to control and the lowest rates under study. In the same time, any acid sources under study significantly improve coriander growth and productivity compared to control plants. The best results in this regard was noticed when coriander plants sprayed with proline + ascorbic acid treatment. In general, the profitable treatment in enhance coriander growth and fruit yield and volatile oil productivity was 20-ton compost/ hectare combined proline + ascorbic acid type. The major compound detected by GC-MS in coriander volatile oil were Beta-Myrcene, L-Linalool followed by Trans-beta-Ocimene and Beta-Ocimene.