Foliar Application of Diammonium Phosphate Increases Essential Oil Content and Changes its Compositions in Mexican Marigold (Tagetes minutaL.)

Background: Thymus plants are well-known medicinal plants and it is believed that the pharmaceutical and therapeutically properties of these plants are related to their essential oils. The quality and quantity of the essential oils, as a secondary metabolite of aromatic plant, is directly related to the physiological state of the plant. The role of jasmonates in the plant as signal molecules in mediation and up-regulation of plant defense and secondary metabolism processes is well recognized. Objective: With the aim of increasing the performance and stimulating secondary metabolites, this study evaluate the influence of foliar application of MJ on essential oil content and composition of three different Thymus species, whether as an elicitor or an activator. Method: The experiment was arranged in a randomized block design with MJ treatments in four levels (0, 30, 60, 100 mM) and three replications. Results: Compared to the control, essential oil content of all three species increased in all treatment levels. However, the changes of essential oil composition were different. Under MJ treatments, the amount of sesquiterpenes (especially caryophyllene oxide) increased in T. daenensis and T. fedtschenkoi. In addition, the amount of thymol in T. daenensis, thymol, and γ-terpinene in T. vulgaris increased, whereas carvacrol methyl ether in T. daenensis and p-cymene in T. vulgaris decreased. Conclusion: It seems the type of plant species has a specific role in determining the response. There were no interpretable changes between treatment levels.

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Salicylic acid foliar application increases biomass, nutrient assimilation, primary metabolites and essential oil content in Achillea millefolium L

Scientia Horticulturae ◽

10.1016/j.scienta.2020.109436 ◽

2020 ◽

Vol 270 ◽

pp. 109436 ◽

Cited By ~ 2

Author(s):

Pedro Henrique Gorni ◽

Ana Cláudia Pacheco ◽

Adriana Lima Moro ◽

Jonathan Fogaça Albuquerque Silva ◽

Ronaldo Rossetti Moreli ◽

...

Keyword(s):

Salicylic Acid ◽

Essential Oil ◽

Oil Content ◽

Foliar Application ◽

Achillea Millefolium ◽

Primary Metabolites ◽

Nutrient Assimilation

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Effect of Harvesting Time and Iron Application on Moldavian balm

Notulae Scientia Biologicae ◽

10.15835/nsb649357 ◽

2014 ◽

Vol 6 (4) ◽

pp. 505-508

Author(s):

Prshang KHALILI ◽

Reza AMIRNIA

Keyword(s):

Essential Oil ◽

Iron Content ◽

Oil Content ◽

Foliar Application ◽

Block Design ◽

Dry Weight ◽

Herbaceous Plant ◽

Harvest Time ◽

Branch Number ◽

Study Results

Dracocephalum moldavica L. of the Labiatae family is an annual herbaceous plant. In Iran it is known as Badrashbi and Badrashboo. Recent publications have reported antibacterial and antimicrobial properties of its essential oil, which have a wide usage in industry. In this research, the effects of iron foliar application and different yields’ harvest times on the essential oil content and some morphological treats (plant height, branch number, fresh and dry weights, essential oil content and leaf Iron content) were investigated under experimental study in faculty of Agriculture of Urmia University during 2012. A factorial experiment in a randomized complete block design with three replications was used in the present study. Results showed that foliar application of iron had a significant effect on branch number, fresh and dry weight, biomass and oil percentage. Similarly, harvest time had a significant influence on fresh and dry weight, essential oil content, essential oil yield and leaf iron content, but its effect was not significant on stem diameter and branch number. The best harvest time for Dracocephalum moldavica L. was at 100% of flowering and 6 ml/l of iron application showed the best results in all characters measured.

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Foliar Application of Salicylic acid Changes Essential oil Content and Chemical Compositions of Peppermint (Mentha piperitaL.)

Journal of Essential Oil Bearing Plants ◽

10.1080/0972060x.2014.892839 ◽

2014 ◽

Vol 17 (3) ◽

pp. 435-440 ◽

Cited By ~ 16

Author(s):

Mohammad J. Saharkhiz ◽

Tahereh Goudarzi

Keyword(s):

Salicylic Acid ◽

Essential Oil ◽

Oil Content ◽

Foliar Application ◽

Chemical Compositions

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The Effect of Foliar Application of Zinc on Essential Oil Content and Composition of Holy Basil [Ocimum sanctum] at First and Second Harvests

Journal of Essential Oil Bearing Plants ◽

10.1080/0972060x.2017.1284609 ◽

2017 ◽

Vol 20 (2) ◽

pp. 449-458 ◽

Cited By ~ 4

Author(s):

Zohreh Moghimipour ◽

Mohammad Mahmoodi Sourestani ◽

Naser Alemzadeh Ansari ◽

Zahra Ramezani

Keyword(s):

Essential Oil ◽

Oil Content ◽

Foliar Application ◽

Ocimum Sanctum ◽

Holy Basil

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Influence of foliar application of arginine and phenylalanine on growth and essential oil content in dill (Anethum graveolens L.) cultivars

Research on Crops ◽

10.31830/2348-7542.2019.122 ◽

2019 ◽

Vol 20 (4) ◽

Keyword(s):

Essential Oil ◽

Oil Content ◽

Foliar Application ◽

Anethum Graveolens

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Foliar applications of phosphate increase the yield of essential oil inmenthol mint (Mentha arvensis)

Australian Journal of Experimental Agriculture ◽

10.1071/ea02196 ◽

2003 ◽

Vol 43 (10) ◽

pp. 1263 ◽

Cited By ~ 6

Author(s):

M. Ram ◽

R. Singh ◽

D. Ram ◽

R. S. Sangwan

Keyword(s):

Essential Oil ◽

Orthophosphoric Acid ◽

Field Experiments ◽

Foliar Application ◽

Foliar Spray ◽

Metabolic Model ◽

Diammonium Phosphate ◽

Oil Yield ◽

Phosphate Effect ◽

Essential Oil Yield

Field experiments were conducted at Lucknow, India, to study the effect of foliar application of orthophosphoric acid and diammonium phosphate filtrate on the biosynthesis and yield of essential oil in transplanted menthol mint: a foliage rich and vegetatively harvested crop. A foliar spray of 10% diammonium phosphate filtrate on the plants of menthol mint enhanced the biosynthesis of essential oil in the leaves to the extent of 15.6–18.7% over the control. A spray of 0.1% orthophosphoric acid gave an increase in the range 8.0–9.4%. When different varieties of menthol mint were sprayed with 10% diammonium phosphate filtrate, the variety Kosi exhibited 13, 78.3 and 66% higher essential oil yield over the varieties Himalaya, Hariti and Kalka, respectively. At the same concentration of spray, the variety Kosi enhanced the essential oil yield by 60% compared with that of the control. The early transplanted crop (18 March) was found to be good in terms of higher essential oil production by about 31% than the later transplanted crop (31 March). It is recommended that in order to get a high essential oil yield from a transplanted mint crop, a foliar spray of 10% diammonium phosphate filtrate should be applied twice, first in the second week of April and second in the first week of June. The optimum time to transplant mint plantlets in the field is the third week of March. A putative working metabolic model of the phosphate effect on biosynthesis of essential oil in volatile plants has been proposed.

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The Effect of Mycorrhizal Fungi and Organic Fertilizers on Quantitative and Qualitative Traits of Two Important Satureja Species

Agronomy ◽

10.3390/agronomy11071285 ◽

2021 ◽

Vol 11 (7) ◽

pp. 1285

Author(s):

Asma Bastami ◽

Reza Amirnia ◽

R. Z. Sayyed ◽

Hesham A. El Enshasy

Keyword(s):

Essential Oil ◽

Mycorrhizal Fungi ◽

Oil Content ◽

Foliar Application ◽

Block Design ◽

Organic Fertilizers ◽

The Third ◽

Randomized Complete Block Design ◽

Satureja Khuzestanica ◽

Essential Oil Yield

The quantitative yield and essential oil percentage and composition of two important savory species in response to various fertilizers were explored in a field experiment as a factorial study based on a randomized complete block design with three replications in north Lorestan, Iran, in 2017–2019. The first factor was assigned to three mycorrhizal fungi (Funneliformis mosseae, Rhizophagus irregularis, and Glomus fasciculatum), phosphate biofertilizer (Baravar-2), fish manure (800 kg/ha), cattle manure (20 t/ha), vermicompost (5 t/ha), and a control (no fertilization); the second factor was assigned to two savory species, including Satureja khuzestanica and S. rechingeri. The results of the combined analysis of variance for the second and third years showed that the simple effects of fertilizers and species were significant on all recorded traits, except for some constituents of the essential oil. Among the mycorrhizal fungi, R. irregularis and S. khuzestanica outperformed S. rechingeri in all traits, except for essential oil content and yield. The interaction between year and species was significant for all traits. The essential oil content of S. rechingeri in the third year (5.1%) was 18% higher than that of S. rechingeri in the second year (4.3%) and 41% higher than that of S. khuzestanica in the third year (3.6%). According to the results, the foliar application of vermin compost at a rate of 5 t/ha can contribute to the sustainable production of both savory species, improving their growth and essential oil yield.

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