Improving the growth, yield and volatile oil content of Pelargonium graveolens L. Herit by foliar application with moringa leaf extract through motivating physiological and biochemical parameters

Moringa (Moringa oleifera L.) leaf extract is a natural plant growth stimulant that is well-known for its ability to improve plant growth and development. A field study was conducted to evaluate the influence of MLE (Moringa Leaf Extract) on the growth, yield and nutritional improvement in two vegetable crops [Tomato (Solanum lycopersicum) and Indian Spinach (Basella alba)]. The extract was applied at two weeks interval with different frequencies. The crops were fertilized with chemical fertilizers and MLE application was done as per treatment @ 25 ml/plant. For each of the crops, this bio-stimulant had a significant boosting effect on growth, yield and nutrient uptake whereas the maximum frequency in the application i.e. T4 (foliar application of MLE at 2 weeks after transplanting and application at every 2 weeks thereafter) showed the highest influence. Indian Spinach responded proportionally more to foliar-applied MLE in terms of plant growth and nutrient uptake compared to tomato. The effect of MLE on the yield parameters was more pronounced in tomato that showed a 25% (averaged across all the growth parameters) increase over control, but Indian Spinach showed ~20% increase in yield parameters compared to control. Therefore, applying MLE to the foliage may assist in increasing the yield by improving plant growth across the different vegetable species (e.g., Tomato and Indian Spinach).

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Influence of foliage applied moringa leaf extract on growth and yield of sunflower (Helianthus annuus L.) underwater deficit conditions

Journal of Arable Crops and Marketing ◽

10.33687/jacm.001.02.3454 ◽

2019 ◽

Vol 1 (2) ◽

pp. 45-52

Author(s):

Muhammad N. Shah ◽

Muhammad J. Shafi ◽

Abdul Wahid

Keyword(s):

Leaf Extract ◽

Oil Content ◽

Foliar Application ◽

Development Stage ◽

Growth And Yield ◽

Head Diameter ◽

Knee Height ◽

Biological Yield ◽

Moringa Leaf Extract ◽

Heading Stage

With increasing population, the demand for food is also increasing. So, with the aim to increase the productivity of crop a field experiment was conducted to determine the effectiveness of the foliar application of moringa leaf extract (MLE) at growth and yield of sunflower under water deficit conditions at Agronomy research area, Bahauddin Zakariya University, Multan. The treatments comprise of Factor A: Irrigation,(I0 = Normal irrigation, I1 = Skipped at knee height stage, I2 = Skipped at knee height + heading stage, I3 = Skipped at knee height + heading + seed development stage and Factor B: Foliar application of MLE (Subplot), T0 = No spray, T1 = Spray at knee height stage, T2 = Spray at knee height + heading stage, T3 = Spray at knee height + heading + seed development stage with randomized complete block design (RCBD) split-plot design in three replications. The interactive effect between moringa leaf extract (MLE) and irrigation was significant. Maximum head diameter (22.17cm), number of achenes per head (1030.30), 1000-achenes weight (49.73g), achene yield (3474 kg/ha), and biological yield (10729.83 kg/ha), oil content (41.734%), protein content (20.8%) was observed in F3 (K+H+S) and I0 (Normal) irrigation. While minimum head diameter (15.57cm), number of achenes per head (681.67), 1000-achenes weight (42.001g), achene yield (2536.33 kg/ha), and biological yield (8209.33 kg/ha), oil content (36.3%), protein content (16.27%) was observed in F0 (no spray) and I3 (K+H+S) irrigation. Results showed that foliar application of moringa leaf extract under normal conditions boost the crop yield and drought stress at (K+H+S) is detrimental for growth and development of sunflower.

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Moringa leaf extract as a bio-stimulant on growth, yield and nutritional improvement in cabbage

Asian Journal of Medical and Biological Research ◽

10.3329/ajmbr.v6i2.48050 ◽

2020 ◽

Vol 6 (2) ◽

pp. 196-203

Author(s):

Tahsina Sharmin Hoque ◽

Md Sohel Rana ◽

Shahana Akter Zahan ◽

Israt Jahan ◽

Md Anwarul Abedin

Keyword(s):

Leaf Extract ◽

Foliar Application ◽

Growth Parameters ◽

Block Design ◽

Growth Yield ◽

Nutrient Status ◽

Nutrient Content ◽

Marketable Yield ◽

Science Field ◽

Moringa Leaf Extract

Moringa is a valuable plant whose leaves are enriched with antioxidants, amino acids, vitamins and mineral nutrients and can be used as a bio-stimulant. A field work was conducted at the Soil Science Field Laboratory of Bangladesh Agricultural University (BAU), Mymensingh, during rabi season from November 2017 to February 2018 in order to investigate the effect of moringa leaf extract (MLE) on growth, yield and nutrient status of cabbage. The experiment was laid out in a randomized complete block design with four treatments and three replications. The treatments were T1 (control), T2 (MLE) sprayed at 2 weeks after transplanting only], T3 (MLE sprayed at 2 weeks and 4 weeks after transplanting), T4(MLE sprayed at 2 weeks after transplanting and after every two weeks thereafter). The rate of MLE application was 25 mL plant-1. All the treatments received recommended dose of N, P, K, S, Zn and B fertilizers. The application of MLE significantly improved the growth parameters, yield and yield contributing characters as well as nutrient content and uptake of cabbage. Among the parameters plant height (33.40 cm), leaf number (19.33 cm), length of the largest leaf (29.00 cm), head thickness (9.67 cm), head diameter (20.33 cm), gross yield (72.83 t ha-1) and marketable yield (48.87 t ha-1), were maximum in T4 where MLE was sprayed at 2 weeks after transplanting and after every two weeks thereafter. The lowest values of all these parameters were found in T1 where no MLE was sprayed. Foliar application of MLE also improved the concentration and uptake of macronutrients (N, P, K and S) in head of cabbage. Thus, application of MLE as a bio-stimulant has the potentiality to enhance growth, yield and nutritional quality of cabbage. Asian J. Med. Biol. Res. June 2020, 6(2): 196-203

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

Scientific Reports ◽

10.1038/s41598-021-03617-w ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Abid Mehmood ◽

Khalid Naveed ◽

Qasim Ayub ◽

Saud Alamri ◽

Manzer H. Siddiqui ◽

...

Keyword(s):

Leaf Extract ◽

Oil Content ◽

Foliar Application ◽

Synergistic Effects ◽

Growth And Yield ◽

Growth Stages ◽

Black Cumin ◽

Yield And Quality ◽

History Of ◽

Moringa Leaf Extract

AbstractThe 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.

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