Exploring the potential of moringa leaf extract as bio stimulant for improving yield and quality of black cumin oil

Abstract

The history of plants to be utilized as medicines is thousands of years old. Black cumin is one of the most widely examined plant possessing naturally occurring compounds with antimicrobial potential. Foliar application of growth stimulators is a successful strategy to enhance yield and quality in many crops. A field study was planned to apply growth stimulator like moringa leaf extract on black cumin crop grown under field conditions using RCB design with three replications. All other agronomic inputs and practices were uniform. The treatments were moringa leaf extract concentrations (10%, 20%), growth stages (40 days after sowing, 80 DAS, 120 DAS, 40 + 80 DAS, 40 + 120 DAS, 80 + 120 DAS, 40 + 80 + 120 days after sowing) and two controls unsprayed check (i.e. no moringa leaf extract, no water) and sprayed check (no moringa leaf extract + water). Application of 20% moringa leaf extract at stage-7 (40 + 80 + 120 days after sowing) had significantly increased plant height, branches plant−1, essential oil content, fixed oil content, peroxidase value and iodine value of black cumin oil over unsprayed control. Application of moringa leaf extract showed maximum results and improves growth and yield of black cumin when applied at 40 + 80 + 120 days after sowing. As this study was only conducted using moringa leaf extract, it is advisable to conduct an experiment with various bio stimulants along with fertilizer combinations and growth regulators to check their synergistic effects for more reliable and acceptable recommendations in future.

Untitled

“…Additionally, Moringa leaf extract significantly enhanced the average plant height, number of leaves, number of branches, and yield of tomato plants, according to [19]. According to Mehmood et al [20], MLE foliar spray acquired the greatest values of black cumin plant growth and yield metrics. Considering these facts, the current study was conducted to evaluate different concentrations of moringa leaf extract and neem leaf extract for improving the storage of tomato fruits.…”

Physiochemical and Antioxidant Evaluation of Moringa Oleifera Leaf Extract Followed by Phytochemical Screening and Antibacterial Activity

“…Antibacterial assay of ethanolic extract was performed. Four different strains of bacteria were selected on the basis of their suitability and functionality, which were made up of two gram positive bacteria (Staphylococcus aureus and Bacillus subtilis) and two gram negative bacteria (Escherichia coli and Pseudomonas aeruginosa) [22]. These were cultured on selective agar media, while antibacterial assay was carried out on nutrient broth media.…”

Exogenous application of ascorbic acid improves physiological and productive traits of Nigella sativa

“…Black cumin is one of the most studied plants for its naturally occurring anti-cancer chemicals. It's a buttercup-like field crop from the Ranunculaceae family [ 1 ]. It has been used to treat a range of health conditions, including respiratory issues, digestive problems, and skin conditions.…”