scholarly journals Adventitious rooting of auxin-treated Lavandula dentata cuttings

2010 ◽  
Vol 40 (5) ◽  
pp. 1210-1213 ◽  
Author(s):  
Claudine Maria de Bona ◽  
Luiz Antonio Biasi ◽  
Bernardo Lipski ◽  
Magda Aparecida Maia Masetto ◽  
Cícero Deschamps
Keyword(s):  
Essential Oil ◽  
Oil Content ◽  
Adventitious Rooting ◽  
Root Weight ◽  
Root Number ◽  
Quadratic Regression ◽  
Polystyrene Foam ◽  
Rooted Cuttings ◽  
Significant Difference ◽  
The Mean

Lavandula species may be propagated by seeds. However, plants will present expressive variation both in size and essential oil content. Indole-3-butyric acid (IBA) is a growth regulator which efficiently stimulates rooting and the objective of this research was to observe the influence of different IBA concentrations on rooting of L. dentata cuttings. Herbaceous cuttings with approximately 10cm in length and around 1/3 of leaf retention had their bases submerged into 0 (control), 500, 1.000, 2.000 or 3.000mg dm-3 of IBA diluted in de-ionized water for 30 seconds and placed in polystyrene foam trays filled with commercial substrate and kept under intermittent mist system. Averages of root number, length of the longest root, fresh and dry root weight, and percentage of rooted cuttings were evaluated after 60 days. There was no significant difference between treatments for the length of root, fresh and dry root weight. The percentage of rooted cuttings increased with IBA concentrations. A quadratic regression was obtained to root number. The 2.000mg dm-3 dose increased the percentage of rooted cuttings and the mean root number per cutting. L. dentata cuttings are easy to root.

scholarly journals Influence of cutting type and size on rooting of Lavandula dentata L

2012 ◽  
Vol 14 (1) ◽  
pp. 8-11 ◽  
Author(s):  
C.M. Bona ◽  
I.R. Biasetto ◽  
M. Masetto ◽  
C. Deschamps ◽  
L.A. Biasi
Keyword(s):  
Essential Oil ◽  
Vegetative Propagation ◽  
Plant Material ◽  
The Other ◽  
Root Weight ◽  
Root Number ◽  
Polystyrene Foam ◽  
High Quality ◽  
Cutting Propagation ◽  
Superior Clones

Even though the Lavandula species may be propagated by seeds, it should not be the preferred propagation method because it causes a great lack of uniformity. On the other hand, asexually propagated lavender crops would provide more homogeneous crops, and clones from high quality plant material would increase the odds for obtaining a higher quality essential oil. However, problems such as poor rooting and restrict market availability for superior clones have been a problem in vegetative propagation of the Lavandula species. The objective of this work was to define which type and size of cutting is more adequate for cutting propagation of L. dentata, a very productive Lavandula species. Cuttings with 5, 8, 10 or 13 cm and from the apical or basal parts of stems cut from L. dentata stock plants were placed in Plantmax HT® filled polystyrene foam trays and kept under intermittent mist system for two months. Averages of root number, length of the longest root, fresh and dry root weight, and percentage of rooting were evaluated. Apical cuttings combined 97.9% rooting with an average of 13.2 roots per cutting and basal cuttings 93.7% rooting with 2.98 roots per cutting. Apical cuttings with at least 10 cm in length were considered the most adequate for cutting propagation of L. dentata.

scholarly journals Influence of preemergently applied herbicides on the yield and quality of caraway achenes (Carum carvi L.)

2008 ◽  
Vol 56 (2) ◽  
pp. 255-266
Author(s):  
Antonín Vaculík
Keyword(s):  
Essential Oil ◽  
Standard Length ◽  
Oil Content ◽  
Competitive Ability ◽  
Weed Species ◽  
Yield And Quality ◽  
Significant Difference ◽  
Positive Effect ◽  
Different Doses

Caraway has very low competitive ability against most of weed species. Therefore, it is important to choose a suitable herbicide control, especially at biennial caraway. The experiments with the herbicides applied in caraway were found in pure growth, with variety Kepron (with standard length of ve­ge­ta­ti­ve period). The aim of the trials was to find out the differences at achenes yiled and essential oil content after the treatment by the various herbicides, applied preemergently. Also, the selective ac­ti­vi­ty of individual herbicides was tested, including the different doses. The herbicides used in the ex­pe­ri­ments had enough level of selektivity on the plants of caraway. They had a positive effect on the yiled comparing to non-treated control variant in all observed years. There was no statistically significant difference in essential oil kontent between the treated variants and non-treated control. On the basis of these results, the most suitable herbicide was chosen for the „minor“ registration for caraway.

Compare the effect of aromatherapy using lavender and Damask rose essential oils on the level of anxiety and severity of pain following C-section: A double-blinded randomized clinical trial

2020 ◽  
Vol 17 (3) ◽  
Author(s):  
Ali Abbasijahromi ◽  
Hamed Hojati ◽  
Saeid Nikooei ◽  
Hossein Kargar Jahromi ◽  
Hamid Reza Dowlatkhah ◽  
...  
Keyword(s):  
Clinical Trial ◽  
Essential Oil ◽  
Essential Oils ◽  
Randomized Clinical Trial ◽  
Control Group ◽  
Content Type ◽  
Gate Control Theory ◽  
Significant Difference ◽  
The Mean ◽  
Damask Rose

AbstractBackgroundAnxiety is the most common psychological reaction in women during labor. Similar to numerous other surgeries, postoperative pain is also reported following cesarean section (C-section). According to the (Gate) Control Theory, there is a relationship between pain and psychological problems such as anxiety. Accordingly, the present study aimed to compare the effect of aromatherapy using lavender and Damask rose essential oils on the level of anxiety and severity of pain following C-section.MethodsThis triple-group randomized clinical trial was performed on 90 mothers who visited Motahari Hospital of Jahrom, Iran, for C-section in 2017. The incidence and severity of pain and anxiety were measured and recorded for all three groups prior to intervention. The intervention groups underwent aromatherapy with lavender and Damask rose essential oils. Patients were asked to inhale cotton balls, separately stained with three drops of each essential oil at a distance of 10 cm for 30 mins. The severity of pain and anxiety was measured using the visual analogue scale (VAS) and the Spielberger State-Trait Anxiety Inventory (STAI) 5 min after the specified process, respectively. The control group underwent aromatherapy in a similar fashion with normal saline. Finally, data were analyzed using descriptive statistical indices and ANOVA and Kruskal–Wallis tests in SPSS 21.ResultsThere was no significant difference between the three groups in the mean severity of pain and anxiety before the intervention (p>0.05). The mean severity of pain and overt anxiety in the lavender and Damask rose aromatherapy groups was significantly different than the control group after the intervention (p<0.001). In addition, no significant difference was observed between the overt and overall anxiety levels of the two intervention groups after the intervention (p>0.05).ConclusionsThe findings suggested that inhalation aromatherapy can reduce the severity of overt anxiety and pain after C-section, with Damask rose essential oil showing a larger effect than lavender.

scholarly journals Effect of Aromatherapy with Lavender 10% Essential Oil on Motor Function, Speech and Delirium in Patients with Acute Thrombotic Cerebral Ischemia

2019 ◽  
Vol 5 (2) ◽  
pp. 49-55
Author(s):  
Shiva Seyed Salehi ◽  
◽  
Zahra Lorigooini ◽  
Nahid Jivad ◽  
Keyvan Ghadimi ◽  
...  
Keyword(s):  
Cerebral Ischemia ◽  
Essential Oil ◽  
Motor Function ◽  
Intervention Group ◽  
Herbal Medicines ◽  
T Test ◽  
Double Blind ◽  
Significance Level ◽  
Significant Difference ◽  
The Mean

Background: Stroke is one of the most disabling diseases worldwide. Herbal medicines, especially lavender, have been used to treat ischemic diseases today. Objectives: The aim of our study was to investigate the effect of aromatherapy with lavender 10% essential oil on motor function, speech and delirium in acute thrombotic cerebral ischemia patients. Materials & Methods: In this double blind clinical trial, 70 patients with acute thrombotic cerebral ischemia were enrolled. Patients were randomly assigned into two equal groups; the first group received lavender essential oil (10%) as aromatherapy, and the second group received placebo. Motor function, speech and delirium scores were calculated using standard questionnaire before and one week after treatment. The level of antioxidants and melancholically was also measured in post-treatment patients .Data were analyzed in SPSS V. 18 using descriptive statistics and paired t-test and independent t-test with a significance level of P<0.05 Results: There was no significant difference between the two groups in terms of demographic information, motor function, speech and delirium scores (P>0.05). After treatment, the mean scores of motor function, speech and delirium were changed significantly in both groups, and the mean of these scores in the intervention group was significantly less than placebo, and in the intervention group the level of antioxidants was significantly higher and level of malondialdehyde was significantly less than placebo group (P<0.05). Conclusion: Using lavender 10% essential oil in our study improved the symptoms of patients such as motor function, speech and delirium after ischemic thrombolytic stroke. This is associated with decrease in malondialdehyde level and an increase in the level of antioxidants.

scholarly journals Innovation of Shallot (Allium Ascalonicum L) Essential Oil for Fever Reduction in Infants Post DTaP Immunization

2021 ◽  
Vol 14 (3) ◽  
pp. 187-195
Author(s):  
Setiawandari Setiawandari ◽  
Istiqomah Istiqomah ◽  
Marquita Da Silva Ximenes
Keyword(s):  
Body Temperature ◽  
Essential Oil ◽  
Repeated Measures ◽  
Control Group ◽  
Test Results ◽  
Mean Body Temperature ◽  
Significant Difference ◽  
Post Test ◽  
Quasi Experimental ◽  
The Mean

DTaP vaccination causes an increased body temperature or fever in most infants. There are pharmacological or non-pharmacological efforts to reduce fever in infants post-DTaP immunization. In addition, shallots are a family medicinal plant in Indonesia commonly used to reduce fever. There should be innovation in the dosage form of shallots so their use is more effective and efficient. This study analyzes the effect of shallot essential oil on fever reduction in infants post-DTaP vaccination. It was a quasi-experimental research design, with one group pre and post-test design. The population of this research was all infants aged 1-12 months who were enrolled in the infant cohort in 2020 at Independent Midwifery Practice (IMP) Istiqomah from May to August 2020. Meanwhile, there were 20 samples by accidental sampling. The research instruments were shallot extract oil, a digital thermometer, and an observation sheet. The data analysis used the Repeated Measures Anova test. The results showed that the mean body temperature before immunization was 36.57 degrees Celcius, while after the experiment was 36.9 degrees Celcius. The statistical test results value ρ = 0.000. There was a significant difference in the mean body temperature from time to time in infants with shallot essential oil administration. This study concludes that shallot essential oil reduces fever in infants post-DTaP immunization. Further research should use a control group, more significant samples, and inclusion criteria limitation.

scholarly journals Essential oil content, chamazulene content and antioxidative properties of Achillea millefolium agg. extracts from Slovenia

2021 ◽  
Vol 117 (2) ◽  
pp. 1
Author(s):  
Boris TURK ◽  
Dea BARIČEVIČ ◽  
Franc BATIČ
Keyword(s):  
Essential Oil ◽  
Dry Matter ◽  
Oil Content ◽  
Steam Distillation ◽  
Biochemical Properties ◽  
Achillea Millefolium ◽  
Antioxidative Capacity ◽  
Distillation Method ◽  
Significant Difference ◽  
Diploid Taxon

The study aimed to clarify some biochemical properties, important for the phytopharmaceutical use of yarrow from the A. millefolium agg.. The study comprised 41 populations from Slovenia. The most abundant taxa were included: Achillea millefolium L., A. roseoalba Ehrend., A. collina (Wirtg.) Becker ex Rchb., A. distans Waldst. &amp; Kit. ex Willd., A. pannonica Scheele, A. pratensis Saukel &amp; R.Länger and A. nobilis L. Assessment of essential oil content with the steam distillation method showed no significant difference between taxa. Essential oil content was the lowest in A. collina (6.50 ml kg-1 of dry matter), followed by A. pannonica (7.75 ml kg-1), A. distans (8.50 ml kg-1), A. nobilis (9.40 ml kg-1), A. pratensis (9.65 ml kg-1), A. nobilis × A. millefolium (12.25 ml kg-1), A. roseoalba (12.75 ml kg-1) and A. millefolium (13.50 ml kg-1). The content of azulenes was determined by photometrical measurement of chamazulene in essential oil extracts. Chamazulene was only present in the diploid taxon and one tetraploid taxon, i.e., A. roseoalba (0.16 % of dry plant mass) and A. collina (0.05 %). The differences in antioxidative capacity of extracts from different taxa were not statistically significant, so we can assume that specific antioxidative capacity is not bound to a specific taxon or ploidy level.

scholarly journals The Influence of Laser Beam and Auxins on Rooting of Leatherleaf Viburnum (VIBURNUM RHYTIDOPHYIIUM Hemsl.) Cuttings

2014 ◽  
Vol 22 (1) ◽  
pp. 63-66 ◽  
Author(s):  
Hanna Szajsner ◽  
Przemysław Bąbelewski
Keyword(s):  
Laser Beam ◽  
Semiconductor Laser ◽  
Root Length ◽  
Laser Beams ◽  
Root Weight ◽  
Root Number ◽  
Rooted Cuttings ◽  
Fresh Root

AbstractThe aim of this work is to compare the effect of three- and sixfold irradiation with a semiconductor laser beams of 200 mW power and wavelength equal to 670 nm and the rooting agent on the percentage and quality of rooted cuttings of leatherleaf viburnum. The most effective for root number and root length was threefold irradiation and for fresh root weight threefold irradiation applied together with the rooting agent.

scholarly journals The clinical efficacy of lavender oil inhalation on intensity of menstrual pain from primary dysmenorrhea

2019 ◽  
Vol 8 (3) ◽  
pp. 218-223
Author(s):  
Farid Zayeri ◽  
Ziba Raisi Dehkordi ◽  
Fatemeh Sadat Hosseini-Baharanchi
Keyword(s):  
Essential Oil ◽  
Intervention Group ◽  
Control Group ◽  
Primary Dysmenorrhea ◽  
Medical Sciences ◽  
Lower Abdomen ◽  
Estimation Equations ◽  
Significant Difference ◽  
The Mean ◽  
Double Blinded

Introduction: Primary dysmenorrhea is defined as painful menses with cramping sensation in the lower abdomen with normal ovulatory cycles which has no pelvic pathology. This study aimed to evaluate the effect of inhalation of Lavandula angustifolia (lavender) essential oil on alleviating primary dysmenorrhea.Methods: This randomized double-blinded clinical trial included 96 students (48 in lavender and 48 in placebo groups) from Tehran University of Medical Sciences, Tehran, Iran. Single students with regular menstrual cycles suffering from primary dysmenorrhea regarding the verbal multi-dimensional scoring system were included. The intervention group was administered to inhale lavender essential oil (diluted in sesame oil in 2:1 ratio). The control group only inhaled sesame essential oil. The visual analogue scale (VAS) was used to assess the pain score at the baseline and 1, 2, 4, and 48 hours after intervention. Generalized estimation equations method was used for data analysis.Results: The students’ mean ± standard deviation (SD) age was 20.32±1.38 years. No significant difference was found in demographic and menstrual characteristics between groups. The mean VAS was not significantly different between groups at the baseline. Lavender inhalation reduced the mean±SD primary dysmenorrhea score of 2.92±0.2 according to VAS significantly during 48 first hours adjusted for baseline VAS (P < 0.001).Conclusion: It could be concluded that lavender inhalation can decrease primary dysmenorrhea. The observed effectiveness of lavender inhalation as an inexpensive therapy without evidence of adverse event supports the interest for potential application of this therapy.

Vowel Recognition Threshold as a Function of Temporal Segmentations

1970 ◽  
Vol 13 (4) ◽  
pp. 715-724 ◽  
Author(s):  
Richard L. Powell ◽  
Oscar Tosi
Keyword(s):  
Normal Hearing ◽  
Recognition Threshold ◽  
Vowel Sound ◽  
Significant Difference ◽  
The Mean ◽  
Vowel Recognition ◽  
Temporal Segment

Vowels were segmented into 15 different temporal segments taken from the middle of the vowel and ranging from 4 to 60 msecs, then presented to 6 subjects with normal hearing. The mean temporal-segment recognition threshold of 15 msecs with a range from 9.3 msecs for the /u/ to 27.2 milliseconds for the /a/. Misidenti-fication of vowels was most often confused with the vowel sound adjacent to it on the vowel-hump diagram. There was no significant difference between the cardinal and noncardinal vowels.

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