Changes in essential oil content and composition of Tansy (Tanacetum vulgareL.) under foliar application of salicylic and orthophosphoric acids

2015 ◽  
Vol 28 (1) ◽  
pp. 64-70 ◽  
Author(s):  
Tahereh Goudarzi ◽  
Mohammad Jamal Saharkhiz ◽  
Vahid Rowshan ◽  
Azin Taban
2012 ◽  
Vol 15 (2) ◽  
pp. 244-249 ◽  
Author(s):  
Mohammad Jamal Saharkhiz ◽  
Maryam Negahban Estahbanati ◽  
Mahrooz Rezaei ◽  
Enayatollah Tafazoli ◽  
Hassan Delavar

Author(s):  
Alireza Shayganfar ◽  
Davod Akhzari

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.


2020 ◽  
Vol 270 ◽  
pp. 109436 ◽  
Author(s):  
Pedro Henrique Gorni ◽  
Ana Cláudia Pacheco ◽  
Adriana Lima Moro ◽  
Jonathan Fogaça Albuquerque Silva ◽  
Ronaldo Rossetti Moreli ◽  
...  

2014 ◽  
Vol 6 (4) ◽  
pp. 505-508
Author(s):  
Prshang KHALILI ◽  
Reza AMIRNIA

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.


2017 ◽  
Vol 20 (2) ◽  
pp. 449-458 ◽  
Author(s):  
Zohreh Moghimipour ◽  
Mohammad Mahmoodi Sourestani ◽  
Naser Alemzadeh Ansari ◽  
Zahra Ramezani

Agronomy ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1285
Author(s):  
Asma Bastami ◽  
Reza Amirnia ◽  
R. Z. Sayyed ◽  
Hesham A. El Enshasy

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.


2014 ◽  
Vol 62 ◽  
pp. 526-532 ◽  
Author(s):  
Sajad Heidari ◽  
Majid Azizi ◽  
Forouzandeh Soltani ◽  
Javad Hadian

HortScience ◽  
2013 ◽  
Vol 48 (4) ◽  
pp. 462-465 ◽  
Author(s):  
Valtcho D. Zheljazkov ◽  
Tess Astatkie ◽  
Ekaterina Jeliazkova

Spearmint (Mentha spicata L.) is a major essential oil crop in the United States. Developing means for increased biomass and oil yields and increased concentrations of carvone would be beneficial for the essential oil industry. A field experiment was conducted to study the effect of foliar application treatments [water (control), water + Tween20, sagebrush essential oil + Tween20, sagebrush water extract, juniper essential oil + Tween20, juniper water extract, and methyl jasmonate] on ‘Native’ spearmint essential oil content, shoot fresh weight, oil yield, and oil composition. The essential oil content was low in the water + Tween20 and in juniper essential oil (EO) + Tween20 treatments and high in the juniper water extract and in methyl jasmonate (MJ) treatments; however, neither of these were different from the water control or from the sagebrush EO + Tween20. Biomass fresh weight was lower in the sagebrush water extract (SWE) and in the juniper water extract (JWE) relative to the water control. The application of juniper EO + Tween20 reduced the concentration of carvone in the oil relative to the water control or to the water + Tween20 treatment. The sagebrush water extract, juniper EO + Tween20, juniper water extract, and MJ increased the concentrations of beta-caryophyllene relative to the water treatment. The concentration of trans-beta-farnesene was lower in the control water treatment and higher in all other treatments. Also, with the exception of sagebrush EO + Tween20, all treatments increased the concentration of germacrene D relative to the water control but not relative to water + Tween20. This study demonstrated that foliar application of sagebrush EO, sagebrush water extract, juniper EO, or juniper water extract to ‘Native’ spearmint may affect the essential oil profile of spearmint essential oil. Some of the treatments increased the concentrations of beta-caryophyllene, trans-beta-farnesene, and germacrene D in the essential oil; however, neither of the treatments increased the concentration of carvone, the main essential oil constituent of ‘Native’ spearmint oil.


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