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Tytuł:
Impact of foliar application of copper sulphate and copper nanoparticles on some morpho-physiological traits and essential oil composition of peppermint (Mentha piperita L.)
Wpływ dolistnego podawania siarczanu miedzi i nanocząstek miedzi na cechy morfologiczne i fizjologiczne oraz na skład olejku eterycznego z mięty pieprzowej (Mentha piperita L.)
Autorzy:
Lafmejani, Z.N.
Jafari, A.A.
Moradi, P.
Moghadam, A.L.
Powiązania:
https://bibliotekanauki.pl/articles/72389.pdf
Data publikacji:
2018
Wydawca:
Instytut Włókien Naturalnych i Roślin Zielarskich
Tematy:
peppermint
Mentha piperita
essential oil content
leaf
pigment
yield
foliar spray
copper sulphate
copper nanoparticle
Opis:
Peppermint (Mentha piperita L.), a member of Lamiaceae family, is an important medicinal plant that has many useful properties. Copper is an essential micronutrient for normal plant growth and metabolism.The aim of this study was to examine the effects of copper sulphate and copper nanoparticles on morpho-physiological traits and essential oil composition of peppermint. Seven treatments of copper sulphate and copper nanoparticles in three concentrations (0.5, 1.0 and 1.5 g/l) and control were applied in foliar application three times of the interval of 15 days up to flowering stages of peppermint in Karaj, Iran in 2015. Copper nanoparticles (1.0 g/l) increased chlorophyll content and essential oil percentage of 35% and 20% higher than control, respectively. The copper sulfate (0.5 g/l) increased dry matter yield up to 58% higher than control. The effects of treatments were significant on 17 out of 34 compositions. Copper nanoparticles (1.0 g/l) increased menthol, menthone and menthofuran content up to 15, 25 and 65% higher than in control, respectively. Foliar application of copper sulfate (0.5 g/l) and copper nanoparticles (1.0 g/l) in flowering stage were suggested for increase of dry matter production, essential oil content and composition, respectively.
Mięta pieprzowa (Mentha piperita L.) z rodziny Lamiaceae jest ważną rośliną leczniczą o wielu zastosowaniach. Miedź jest ważnym mikroelementem niezbędnym do prawidłowego wzrostu i metabolizmu roślin. Celem pracy było zbadanie wpływu siarczanu miedzi i nanocząstek miedzi na cechy morfologiczne i fizjologiczne oraz na skład olejku eterycznego mięty pieprzowej. Siarczan miedzi i nanocząstki miedzi podawano dolistnie trzykrotnie w odstępie 15 dni aż do fazy kwitnienia. Hodowano także grupę kontrolną w trzech stężeniach (0,5, 1,0 i 1,5 g/l). Badanie przeprowadzono w Karaj w Iranie. Nanocząstki miedzi (1,0 g/l) spowodowały wzrost zawartości chlorofilu i olejku eterycznego (w %), odpowiednio o 35 i 20% w stosunku do grupy kontrolnej. Siarczan miedzi (0,5 g/l) zwiększał suchą masę surowca o 58% w porównaniu z grupą kontrolną. Wpływ nawożenia był istotny statystycznie w przypadku 17 związków spośród 34 składników olejku. Nanocząstki miedzi (1,0 g/l) zwiększyły zawartość mentolu, mentonu i mentofuranu odpowiednio do 15, 25 i 65% w porównaniu z grupą kontrolną. Podanie dolistne siarczanu miedzi (0,5 g/l) i nanocząstek miedzi (1,0 g/l) w stadium kwitnienia może powodować zwiększenie produkcji suchej masy surowca oraz wpływać na zawartość i skład olejku eterycznego.
Źródło:
Herba Polonica; 2018, 64, 2
0018-0599
Pojawia się w:
Herba Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of Seed Emergence, Seedling Vigor Enhancement of Some Populations From Satureja Bachtiarica With Chemical, Mechanical and Physiological Treatment
Autorzy:
Alizadeh, M. A.
Arab, H.A.
Tabaie, R.
Nasiri, M.
Jafari, A.A.
Powiązania:
https://bibliotekanauki.pl/articles/2199668.pdf
Data publikacji:
2016-12-20
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
dormancy
germination
Satureja bachtiarica
vigor
Opis:
The seeds of 3 populations from Satureja bachtiarica were collected from three native vegetation areas (Simirom2, Sharkord and Yazd). The different treatments including: cold stratification, gibberlic acid (50 and 100 ppm) Potassium nitrate (0.2 and 0.4 percent). Physical scarification (sand paper), chemical scarification (Ethylic alcohol %70) and distilled water (control) were used for breaking dormancy of the seed samples. For greenhouse experiment, the seed samples were treated with treatments and then were sown in pots using randomize design with three replications. Emergence percentage, emergence speed, length of root and shoot, seedling length, root/shoot length ratio, vigor index, seedling fresh and dry weight, dry/fresh weight ratio were evaluated during 45 days of experiment. Comparing of population Semirom2 form savory of Bachtiary was higher than other population. It was concluded that effect of gibberlic acid and potassium nitrate was higher than physical scarification and chemical scarification comparing with control.
Źródło:
Plant Breeding and Seed Science; 2016, 74; 37-44
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Variation and relationships of aerial yield, morpho-agronomic traits and essential oil composition in domestic populations of Ziziphora tenuior in Iran
Autorzy:
Moradi, R.
Alizadeh, M.A.
Hervan, E.M.
Shanjani, P.S.
KhanghaniS.
Jafari, A.A.
Powiązania:
https://bibliotekanauki.pl/articles/12703281.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Opis:
The present study was carried out to evaluate aerial yield, agronomic traits, essential oil production, and their relationships in 21 populations of Ziziphora tenuior in Karaj, Iran over two years (2016–2017). The experimental layout was a randomized complete block design with three replications. Data were collected for GDD (Growth Degree Days), plant height, canopy area, stem number, flower number, aerial fresh yield, aerial dry matter (DM) yield, seed yield, essential oil percentage and oil production. The essential oil compositions were detected in accession 2929 (Tassoj) using GC/MS. Result of combined analysis of variance across two years showed significant differences between years, populations and population × year interaction for all traits (P < 0.01). In comparisons among populations, the population of Avaj and Ijroud with average values of 13.5 and 14.33 g/p had higher aerial dry yield and other agronomic traits followed by Meshkin2 and 3. For seed yield, Ormieh with average values of 3.11 g/p had higher production. For oil content, the populations of Tassoj, Salmas and Sharkord with average values of 1.25 to 1.56% had higher oil content and essential oil production. Result of correlation analysis showed that DM yield was positively correlated with GDD, plant height, canopy area, stem number, flower number. Oil content was negatively correlated with aerial DM yield. The results of PCA analysis showed that the first four components accounted for 50, 20, 12 and 10% of the total variation, respectively. Plant height, canopy area, stem number, flower number and aerial yield in the PCA1, essential oil content and oil production in the PCA2, seed yield in the PCA3 and GDD in PCA4 components were identified as important traits. Using Ward cluster method, the 21 populations were grouped into 3 clusters. In total, 23 compounds were identified in the essential oil from the aerial parts Z. tenuior. The major components in the essential oil were pulegone ranged (47.54 to 65.26%) followed by neo-iso-dihydro carveol, carvacrol, piperitenone, limonene, 1.8-cineole, p-mentha-3,8-dien, alpha-terpinene and terpinen-u-ol. It was concluded that there were wide range of variations for agronomic trait and essential oil in domestic germplasm of Z. tenuior to improved breeding new varieties in Iran.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2020, 19, 1; 119-130
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Some physical propeties of wild pistachio [Pistacia vera L.] nut and kernel as a function of moisture content
Autorzy:
Nazari Galedar, M.
Jafari, A.
Tabatabaeefar, A.
Powiązania:
https://bibliotekanauki.pl/articles/26322.pdf
Data publikacji:
2008
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Źródło:
International Agrophysics; 2008, 22, 1; 117-124
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Calculation of Temperature Distribution in Eccentric Multi Core Diode Pumped Fiber Lasers by Green Function Method
Autorzy:
Gharaati, A.
Elahi, P.
Jafari, M.
Powiązania:
https://bibliotekanauki.pl/articles/1791240.pdf
Data publikacji:
2009-10
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
42.55.Wd
42.60.Da
Opis:
In this paper, the temperature distribution in fiber lasers pumped by multi diode bars located in out-of-fiber axis has been investigated semi-analytically. For this reason, we consider heat deposition in fiber lasers due to pump and the nonhomogeneous heat conduction equation has been solved by using Green function method in a cylindrical coordinate system. Our model has been used for single, double and multi pumped configuration and, for a typical fiber lasers, the results have been plotted and discussed.
Źródło:
Acta Physica Polonica A; 2009, 116, 4; 566-569
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of some diets on demographic parameters of Ectomyelois ceratoniae (Zeller) (Lepidoptera:Pyralidae) in vitro
Autorzy:
Mortazavi, S.
Samih, M.A.
Ghajarieh, H.
Jafari, A.
Powiązania:
https://bibliotekanauki.pl/articles/65132.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:
The carob moth, Ectomyelois ceratoniae (Zeller) (Lepidoptera: Pyralidae), is a cosmopolitan species widely distributed in different habitats worldwide. This moth is a well known pest of many fruits as well as dried fruits in storage. In this study, the biological parameters of the carob moth were studied in a growth chamber under controlled conditions (30±2°C, 65±5% and 16L : 8D). The studied moths were on four diets including pistachio, and pomegranate (both are referred to as the natural diets), and semi-synthetic, and synthetic food. The results demonstrated that survival rate of the carob moth on the two natural diets was higher than the survival rate of the carob moth on the semi-synthetic, and synthetic diets (also referred to as the artificial diets). The highest and lowest amount of life expectancy (ex) were obtained for moths on the pistachio diet (38.82), and the pomegranate diet (29.32), respectively. The highest age-stage specific reproductive value (vxj) was observed for moths on the pistachio diet (181.1). The intrinsic rate of increase (r) and finite rate of increase (λ) were calculated to be highest when the pomegranate diet was used (0.091 and 1.096) and lowest when the synthetic diet was used (0.06) and (1.062). The highest amounts of net reproductive rate and mean fecundity were obtained for moths fed the pistachio diet and the lowest were for moths fed the synthetic diet. Our results also showed that the mean generation times were 48.32, 44.42, 37.19, and 42 days for moths fed synthetic food, pistachio, pomegranate, and semi-synthetic food, respectively. The outcome of this research can be used to effectively select the most useful rearing of carob moths for using them in natural pheromone traps as Integrated Pest Management programs.
Źródło:
Journal of Plant Protection Research; 2015, 55, 2
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
In vitro shoot proliferation of Passiflora caerulea L. via cotyledonary node and shoot tip explants
Autorzy:
Jafari, M.
Daneshvar, M.H.
Lotfi, A.
Powiązania:
https://bibliotekanauki.pl/articles/80666.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Passiflora caerulea
shoot proliferation
in vitro
acclimatization
plant growth regulator
regeneration
rooting
shoot explant
shoot multiplication
indole butyric acid
thidiazuron
cytokinin
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2017, 98, 2
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Morphological and physiological traits in seedlings’ populations obtained from the hybridization of promising genotypes of quince (Cydonia oblonga Mill.)
Autorzy:
Tatari, M.
Jafari, A.
Najafi Solari, H.
Powiązania:
https://bibliotekanauki.pl/articles/1078110.pdf
Data publikacji:
2020
Wydawca:
Instytut Ogrodnictwa
Tematy:
morphological trait
physiological trait
seedling
hybridization
quince
Cydonia oblonga
annual growth
iron content
chlorophyll content
catalase activity
peroxidase activity
Opis:
Some morphological and physiological traits of seedlings in eight quince populations from seeds obtained in 2015 (350 progenies per population) were evaluated in 2017 and 2018. They resulted from open pollination of ‘Viduja’, KVD2 and KVD4 genotypes as well as from the crossings of ‘Viduja’ × KVD4, KVD2 × ‘Viduja’, KVD2 × KVD4, KVD4 × ‘Viduja’ and KVD4 × KVD2. Populations showed significant differences in some measured traits, including height and diameter of seedlings, canopy width, annual growth, leaf iron, and chlorophyll content, as well as catalase and peroxidase activities. Based on the results of descriptive statistics, a high variation coefficient was observed in canopy width, peroxidase activity, chlorophyll, and iron content traits. Results of simple correlation showed that there were significant positive correlations between leaf iron content and catalase activity as well as canopy width with both annual growth and leaf length. Cluster analysis among populations based on total traits divided the populations into four distinct groups. The role of the female parents was visible in reciprocal crosses of ‘Viduja’ × KVD4 and KVD2 × KVD4, but all populations with similar female parents were not grouped in the same clusters.
Źródło:
Journal of Horticultural Research; 2020, 28, 2; 53-60
2300-5009
Pojawia się w:
Journal of Horticultural Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Effect of Solvent, Hydrogen Peroxide and Dioxide Titanium on Degradation of PCBs, Using Microwave Radiation in Order to Reduce Occupational Exposure
Autorzy:
Tajik, R.
Mohabadi, H. A.
Khavanin, A.
Jafari, A. J.
Eshrati, B.
Powiązania:
https://bibliotekanauki.pl/articles/205106.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
degradation
ethanol
microwave
transformer oil
degradacja
etanol
mikrofale
olej transformatorowy
Opis:
Polychlorinated biphenyls (PCBs) are one group of persistent organic pollutants (POPs) that are of international concern because of global distribution, persistence, and toxicity. Removal of these compounds from the environment remains a very difficult challenge because the compounds are highly hydrophobic and have very low solubility in water. A 900 W domestic microwave oven, pyrex vessel reactor, pyrex tube connector and condensing system were used in this experiment. Radiation was discontinuous and ray powers were 540, 720 and 900 W. The PCBS were analyzed by GC-ECD. The application of microwave radiation and H2O2/TiO2 agents for the degradation of polychlorinated biphenyl contaminated oil was explored in this study. PCB – contaminated oil was treated in a pyrex reactor by microwave irradiation at 2450 MHz with the addition of H2O2/TiO2. A novel grain TiO2 (GT01) was used. The determination of PCB residues in oil by gas chromatography (GC) revealed that rates of PCB decomposition were highly dependent on microwave power, exposure time, ratio to solvent with transformer oil in 3:1, the optimal amount of GT01 (0.2 g) and 0.116 mol of H2O2 were used in the study. It was suggested that microwave irradiation with the assistance of H2O2/TiO2 might be a potential technology for the degradation of PCB – contaminated oil. The experiments show that MW irradiation, H2O2 oxidant and TiO2 catalyst lead to a degradation efficiency of PCBs only in the presence of ethanol. The results showed that the addition of ethanol significantly enhanced degradation efficiency of PCBs.
Źródło:
Archives of Environmental Protection; 2014, 40, 2; 91-102
2083-4772
2083-4810
Pojawia się w:
Archives of Environmental Protection
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Static, free and forced vibration analysis of a delaminated microbeam-based MEMS subjected to the electrostatic force
Autorzy:
Razeghi-Harikandeei, A.
Azizollah Ganji, B.
Jafari-Talookolaei, R.-A.
Abdipour, A.
Powiązania:
https://bibliotekanauki.pl/articles/38444172.pdf
Data publikacji:
2020
Wydawca:
Instytut Podstawowych Problemów Techniki PAN
Tematy:
microelectromechanical systems (MEMS)
delaminated microbeam
static deflection
pull-in voltage
non-linear electrostatic force
Opis:
In this paper, the delamination effect on the static and natural frequency response of a microbeam subjected to the nonlinear electrostatic force is studied using a semi-analytical approach for the first time. The Euler–Bernoulli beam assumption along with the non-classical modified couple stress theory is used to obtain the governing differential equation of motion and then a reduced-order model based on Galerkin’s decomposition method is obtained. At first the microbeam with very small delamination like an intact microbeam is solved and then the solution is compared with those reported in the literature and the solution obtained using 3D-coupled electromechanical software. After validation, the effects of delamination length and its locations in thickness and length directions on the microbeam behavior are investigated in details. It is shown that the delamination has remarkable effects on the characteristics of the microbeam, especially near the pull-in voltage. Also, the delaminated microbeam with various thicknesses is studied using both the classical and the non-classical theories. It is found that the difference between the two models is significant for the thin microbeam with a thickness near of below than its material length scale parameter. This investigation is helpful for the nondestructive detection of the delamination in the beams.
Źródło:
Archives of Mechanics; 2020, 72, 2; 169-188
0373-2029
Pojawia się w:
Archives of Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Estimation of the demand for health for urban households using Grossmans model in Shiraz, Iran
Autorzy:
Jafari, A.
Ravangard, R.
Kavosi, Z.
Sajjadnia, Z.
Powiązania:
https://bibliotekanauki.pl/articles/1914053.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Medyczny w Białymstoku
Tematy:
demand for health
health stock
health production
Grossman's model
Opis:
Purpose: To study the effects of socioeconomic variables on health stock using Grossman model in Shiraz, Iran. Materials and Methods: This was an applied, cross-sectional and analytical-descriptive study conducted in Iran, Shiraz in 2012. A sample of 1538 individuals from 769 households was determined using stratified sampling proportional to size and systematic random sampling methods. Health stock was measured using Quality of Life SF36 questionnaire, and an ordered probit model was used to econometrically estimate the demand for health equation. Results: The results showed that being male and having high school and university degrees had positive and significant effects on health stock (p<0.05). Also, ages over 44 years and being unemployed had negative, and significant effects on health stock (p <0.05). However, the estimated effects of monthly income level, public health insurance coverage status and supplementary health insurance coverage status were positive, but not significant. Conclusions: According to the results, the following suggestions can be made for improving individuals' health status: providing education opportunities and facilities for all, increasing health and wellness education programs at different education levels, providing health education for all people through the media at the appropriate time, implementing health subsidies and exemption from payment policies for the elderly, increasing recreational, and sports facilities for women, etc.
Źródło:
Progress in Health Sciences; 2014, 4, 1; 31-40
2083-1617
Pojawia się w:
Progress in Health Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Some physical and hydrodynamic properties of two varieties of apple [Malus domestica Borkh L.]
Autorzy:
Kheiralipour, K.
Tabatabaeefar, A.
Mobli, H.
Rafiee, S.
Sharifi, M.
Jafari, A.
Rajabipour, A.
Powiązania:
https://bibliotekanauki.pl/articles/25635.pdf
Data publikacji:
2008
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Źródło:
International Agrophysics; 2008, 22, 3; 225-229
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Classification of Cactus Graphs According to their Domination Number
Autorzy:
Hajian, Majid
Henning, Michael A.
Rad, Nader Jafari
Powiązania:
https://bibliotekanauki.pl/articles/32315639.pdf
Data publikacji:
2022-05-01
Wydawca:
Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii
Tematy:
domination number
lower bounds
cycles
cactus graphs
Opis:
A set S of vertices in a graph G is a dominating set of G if every vertex not in S is adjacent to some vertex in S. The domination number, γ(G), of G is the minimum cardinality of a dominating set of G. The authors proved in [A new lower bound on the domination number of a graph, J. Comb. Optim. 38 (2019) 721–738] that if G is a connected graph of order n ≥ 2 with k ≥ 0 cycles and ℓ leaves, then γ(G) ≥ ⌈(n − ℓ + 2 − 2k)/3⌉. As a consequence of the above bound, γ(G) = (n − ℓ + 2(1 − k) + m)/3 for some integer m ≥ 0. In this paper, we characterize the class of cactus graphs achieving equality here, thereby providing a classification of all cactus graphs according to their domination number.
Źródło:
Discussiones Mathematicae Graph Theory; 2022, 42, 2; 613-626
2083-5892
Pojawia się w:
Discussiones Mathematicae Graph Theory
Dostawca treści:
Biblioteka Nauki
Artykuł
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