Moringa leaf extract application as a natural biostimulant improves the volatile oil content, radical scavenging activity and total phenolics of coriander
Ragia M Mazrou
Recently, using the biostimulants in enhancing the growth and yield of crops is a very pressing topic especially with medicinal plants because of its therapeutic values. Moringa leaf extract (MLE) has gained more consideration among the natural biostimulants but the information about its impact on medicinal plants is scarce. Therefore, the current study is an attempt to bridge the gap. Coriander plants were foliar sprayed with MLE at 50, 100, 200 and 300 g L-1 while the untreated plants were sprayed with distilled water. MLE treatment considerably enhanced the growth characters which reflected in improving the fruit yield compared to untreated plants. Importantly, MLE treatment not only increased volatile oil yield of coriander but also enhanced volatile oil components relative to untreated plants. The major volatile oil components i.e. Limonene, ß- Cymene and Linalool were more accumulated by MLE application. Otherwise, the percentages of N, P, K and total sugars were considerably increased due to MLE treatment. Interestingly, the radical scavenging activity and total phenolics were considerably improved with the MLE application relative to untreated plants. Applying MLE at 200 g L-1 was the most effective concentration compared to the other levels. Conclusively, using MLE as a promise plant biostimulat may be suggested to improve the productivity and quality of coriander plant.
Ragia M Mazrou. Moringa leaf extract application as a natural biostimulant improves the volatile oil content, radical scavenging activity and total phenolics of coriander. J Med Plants Stud 2019;7(5):45-51.