STUDI MORFOLOGI DAN ANALISIS KORELASI ANTAR KARAKTER KOMPONEN HASIL TANAMAN SEREH WANGI (Cymbopogon sp.) DALAM UPAYA PERBAIKAN PRODUKSI MINYAK

<p>Study Morphology and Correlation Analysis Inter Componen<br />Yield Caracter of Citronella (Cymbopogon citratus). Lemongrass isfamiliar in Indonesia as a cooking ingredient known as Lemongrass (Cymbopogon citratus). Citronella considered as a rare plant that most peopledo not recognize yet. There are two species of Citronella are known Citronella Lenabatu (Cymbopogon nardus) and Citronella Mahapengiri (Cymbopogon winterianus) which is an essential oil taken as a raw material tomake medicine and perfume. This research was conducted in BKPH Southern Lawu, RPH Watu kempul and consortium village of Sendang, district Jatipuro, Wonogiri on December 2010. The purpose of this research are to find morphology characteristic, yield of essential oil and the variety level of Citronella, that all used as the selection foundation to get a bit of blood. This research uses 30 samples/accessions based on Random Proportions. Observation is conducted on the characteristic of morphology and yield of essential oil, variety level is implemented based on the Cluster analysis with average linkage method. The results show that 24,90% variety of Citronella in the area is not too varied. This variation can be seen from the morphological characteristic, and the differences of yield of essential oil produced.Accessions 26 and accessions 24 have highest oil yield with 1.421% and1.25%. The two samples have similar in the morphology, which they have similar red to purple leaf color, similar in the minimum number of plants inone clump (50-100) and the tall of plant that not too high (150 cm-200 cm).Components of plant cintronella fragrant hat could be use as selection criteria including of low plant hight, shorter of leaf size, number of plants per hill slightly and Shorter of stem length.</p>

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What drives the vital rates of secondary hemiepiphytes? A first assessment for three species of Heteropsis (Araceae) in the Colombian Amazon

Journal of Tropical Ecology ◽

10.1017/s0266467415000115 ◽

2015 ◽

Vol 31 (3) ◽

pp. 251-265 ◽

Cited By ~ 4

Author(s):

María Paula Balcázar-Vargas ◽

Tinde R. van Andel ◽

Paul Westers ◽

Pieter A. Zuidema

Keyword(s):

Growth Rates ◽

Vegetative Propagation ◽

Slow Growth ◽

Gradual Increase ◽

Leaf Size ◽

Stem Length ◽

Vital Rates ◽

Size Number ◽

Colombian Amazon ◽

Study Species

Abstract:Secondary hemiepiphytes rely on other plants (hosts) to grow vertically. After germinating on the forest floor, their seedlings search a host to ascend. We recorded information on survival, growth, reproduction and vegetative propagation of three Heteropsis species, to evaluate what drives their vital rates. We measured 700 individuals of each study species between 2007 and 2009 in the southern Colombian Amazon. A gradual increase in stem length, leaf size, number of roots and plagiotropic branches was found with increasing height of Heteropsis individuals on their hosts. Survival of leafless non-climbing seedlings was very low (28% annually); increasing substantially (84–94%) once the seedling had ascended a host. The three Heteropsis species presented slow height growth rates (c. 2–8 cm y−1) with large variation, while a substantial percentage of the stems (31–62%) did not grow or dried out. Vegetative propagation in Heteropsis may act as a dispersion-propagation strategy to find a suitable host and reach the canopy again after falling. The slow growth rates suggest that Heteropsis individuals that have reached the canopy are rather old. Once plants have reached the tree crowns, their longevity is largely determined by the survival of the host tree.

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Performanţele soiurilor-clone de lavandă (Lavandula angustifolia Mill.)

10.53040/gppb7.2021.49 ◽

2021 ◽

Author(s):

Violeta Butnaras ◽

◽

Maria Gonceariuc ◽

Zinaida Balmus ◽

Pantelimon Botnarenco ◽

...

Keyword(s):

Essential Oil ◽

Plant Size ◽

Raw Material ◽

Spike Length ◽

Stem Length ◽

Cultivation Conditions ◽

Lavandula Angustifolia ◽

Qualitative Characters ◽

Corolla Color ◽

Essential Oil Production

The varieties of L. angustifolia created are differ by terms of technical maturation: early - Moldoveanca 4, Favoare); (intermediates - Vis Magic 10, Aroma Unica); (late-Alba 7 and Svetlana). They are distinctive by a string of quantitative and qualitative characters (plant size, bush shape, inflo-rescence length, corolla color, floral spike length, floral stem length, number of floral stems, etc.). The productivity of these clone varieties varies depending on the annual cultivation conditions from 5.2 t/ha to 10.4 t/ha raw material production and 75-179 kg/ha essential oil production.

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Changes in the component composition of Thymus vulgaris L. essential oil depending on the method of distillation

Plant Biology and Horticulture: theory, innovation ◽

10.36305/2712-7788-2020-1-154-106-115 ◽

2020 ◽

pp. 106-115

Author(s):

Yu. S. Khokhlov ◽

I. A. Fedotova ◽

O. M. Shevchuk

Keyword(s):

Essential Oil ◽

Mass Fraction ◽

Raw Materials ◽

Component Composition ◽

Raw Material ◽

Gas Chromatography Mass Spectrometry ◽

Thymus Vulgaris ◽

Mass Flowering ◽

Two Samples ◽

Volatile Terpene

The objective of the work was to identify changes in the amount and component composition of essential oil in the raw material of Thymus vulgaris L. (common thyme) when using different distillation methods. The object of the study was two samples of thyme-thymol and linalool chemotypes. Essential oil was obtained from freshly harvested raw materials (inflorescences in the mass flowering phase) by the following methods: hydrodistillation method on Clevenger apparatuses and steam extraction method on the installation for the production of essential oil and intermediates "Alpha-Ether Compact". The component composition of volatile substances was determined by gas chromatography-mass spectrometry. In the composition of volatile compounds of plant essential oil, 29 components for the thymol chemotype were identified, and 18 components for the linalool chemotype were identified. It was found that the use of the hydrodistillation method allows extracting 40-50% more essential oil. Significant differences were found between the mass fraction of extracted essential oil components using different methods and the content of the mass fraction of essential oil in the raw material of Th. vulgaris and found that depending on the method of obtaining essential oil, the proportion of volatile terpene hydrocarbons and oxygen-containing compounds changes. The method of steam distillation leads to a deterioration of the component composition of the essential oil, reducing the content of the dominant components of both chemotypes (thymol and linalool).

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Mental representation of economic crisis in Italian and Swiss samples 1The authors would like to thank Maurizio Mistri for his help in the construction of items. This research was supported by a grant from the Italian Murst (ex 40%).

Swiss Journal of Psychology ◽

10.1024//1421-0185.60.1.11 ◽

2001 ◽

Vol 60 (1) ◽

pp. 11-14 ◽

Cited By ~ 10

Author(s):

Lucia Savadori ◽

Eraldo Nicotra ◽

Rino Rumiati ◽

Roberto Tamborini

Keyword(s):

Economic Crisis ◽

Mental Representation ◽

Mental Representations ◽

Social Contexts ◽

Raw Material ◽

National Context ◽

Cluster Procedure ◽

Total N ◽

Two Samples ◽

Important Symptom

The content and structure of mental representation of economic crises were studied and the flexibility of the structure in different social contexts was tested. Italian and Swiss samples (Total N = 98) were compared with respect to their judgments as to how a series of concrete examples of events representing abstract indicators were relevant symptoms of economic crisis. Mental representations were derived using a cluster procedure. Results showed that the relevance of the indicators varied as a function of national context. The growth of unemployment was judged to be by far the most important symptom of an economic crisis but the Swiss sample judged bankruptcies as more symptomatic than Italians who considered inflation, raw material prices and external accounts to be more relevant. A different clustering structure was found for the two samples: the locations of unemployment and gross domestic production indicators were the main differences in representations.

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Behavioural and biochemical responses in adult Pacific white shrimp, Litopenaeus vannamei , exposed to the essential oil of Cymbopogon citratus

Aquaculture Research ◽

10.1111/are.15482 ◽

2021 ◽

Author(s):

Alessandra J. Becker ◽

Patrícia B. Ramos ◽

José M. Monserrat ◽

Wilson Wasielesky ◽

Bernardo Baldisserotto

Keyword(s):

Essential Oil ◽

Litopenaeus Vannamei ◽

Pacific White Shrimp ◽

White Shrimp ◽

Cymbopogon Citratus ◽

Biochemical Responses

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Formulation of a Floor Cleaning Product using Lemongrass (Cymbopogon citratus) Essential Oil and Evaluation of Foamability and Foam Durability

IOP Conference Series Materials Science and Engineering ◽

10.1088/1757-899x/991/1/012132 ◽

2020 ◽

Vol 991 ◽

pp. 012132

Author(s):

T H Tran ◽

T N Pham ◽

T C Q Ngo ◽

T H N Le ◽

H C Mai ◽

...

Keyword(s):

Essential Oil ◽

Cymbopogon Citratus ◽

Cleaning Product

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Determination of Essential Oil Bioactive Components and Rosmarinic Acid of Salvia officinalis Cultivated under Different Intra-row Spacing

Notulae Scientia Biologicae ◽

10.15835/nsb529046 ◽

2013 ◽

Vol 5 (2) ◽

pp. 198-203 ◽

Cited By ~ 3

Author(s):

Mohammad ABU DARWISH ◽

Ezz Al-Dein AL-RAMAMNEH ◽

Ivan SALAMON ◽

Ziad ABU-DIEYEH ◽

Mohamed AL NAWAISEH ◽

...

Keyword(s):

Essential Oil ◽

Essential Oils ◽

Rosmarinic Acid ◽

Plant Density ◽

Salvia Officinalis ◽

Raw Material ◽

Row Spacing ◽

Human Disorders ◽

Tea Production ◽

First Time

Salvia officinalis, known also as sage, is a medicinal plant belonging to the Lamiaceae family that spreads all over the word in several countries. The demand for the raw material and extracts of this plant is increasing due to its numerous applications in pharmacy, food and herbal tea production. The present study investigated for the first time the effect of 15, 30 and 45 cm intra-row spacing (plant density) on the main constituents of sage essential oils and rosmarinic acid content. The highest content of essential oils (2.7%) and rosmarinic acid (2.0%) were obtained in plants grown using 15 cm planting space. Likewise, close spacing resulted also in a substantial content of 1,8-cineole (47-50%, GC/FID; 55-60%, GC/MS). This work indicated that 1,8-cineole chemotype was a dominant character of cultivated S. officinalis in south of Jordan. In general, the percent of α-thujone in essential oil was not affected by intra-row spacing. However, the percent of β-thujone decreased from (2-3%, GC/MS) in plants grown using 15 cm intra-row spacing to (1-2%, GC/MS) in plants grown using 30 and 45 cm intra-row spacing. The highest content of α-and β-pinene was recorded in plants grown using 45 cm planting space (8-10%, GC/FID; 5-6% GC/MS). Based on GC/MS, camphor compound was enriched (9-10%) in sage plants grown under 15 cm spacing and greater than in plants grown under 30 (6-7%) or 45 cm (5-6%) spacing. The results make the potential use of sage extracts in the treatment of some human disorders or illness an area of further research.

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Chemical Composition of Two Samples of Essential Oil ofSatureja boliviana(Benth.) Briq. from Peru and Bolivia

Journal of Essential Oil Research ◽

10.1080/10412905.1996.9700621 ◽

1996 ◽

Vol 8 (3) ◽

pp. 307-309 ◽

Cited By ~ 5

Author(s):

Roser Vila ◽

Begoña Milo ◽

Cecilia Labbé ◽

Orlando Muñoz ◽

Emma Urrunaga Soria ◽

...

Keyword(s):

Chemical Composition ◽

Essential Oil ◽

Two Samples

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Paleoclimate and precipitation seasonality of the Early Eocene McAbee megaflora, Kamloops Group, British Columbia

Canadian Journal of Earth Sciences ◽

10.1139/cjes-2015-0160 ◽

2016 ◽

Vol 53 (6) ◽

pp. 591-604 ◽

Cited By ~ 8

Author(s):

Cale A.C. Gushulak ◽

Christopher K. West ◽

David R. Greenwood

Keyword(s):

British Columbia ◽

North American ◽

Leaf Size ◽

Early Eocene ◽

Precipitation Seasonality ◽

Two Samples ◽

Fossil Site ◽

Fossil Floras ◽

Climate Analysis ◽

Early Cenozoic

Early Eocene fossil floras from British Columbia are a rich resource for reconstructing western North American early Cenozoic climate. The best known of these floras reflect cooler (MAT ≤ 15 °C) upland forest communities in contrast to coeval (MAT ≥ 18 °C) forests in lowland western North American sites. Of particular interest is whether Early Eocene climates were monsoonal (highly seasonal precipitation). The McAbee site is a 52.9 ± 0.83 Ma 0.5 km outcrop of bedded lacustrine shale interbedded with volcanic ash. In this report two historical megaflora collections that were collected independently from different stratigraphic levels and (or) laterally separated by ∼100–200 m in the 1980s (University of Saskatchewan) and 2000s (Brandon University) are investigated to (i) assess whether they represent the same leaf population, (ii) assess whether a combined collection yields more precise climate estimates, and (iii) reconstruct paleoclimate to assess the character of regional Early Eocene precipitation seasonality. Combined, the two samples yielded 43 dicot leaf morphotypes. Analysis of leaf size distribution using ANOVA showed no difference between the two samples, and thus they were combined for climate analysis. Climate analysis using leaf physiognomy agrees with previous estimates for McAbee and other regional megafloras, indicating a warm (MAT ∼8–13 °C), mild (CMMT ∼5 °C), moist (MAP > 100 cm/year) ever-wet, non-monsoonal climate. Additionally, we recommend that climate analyses derived from leaf fossils should be based on samples collected within a stratigraphically constrained quarry area to capture a snapshot of climate in time rather than time-averaged estimates derived from multiple quarry sites representing different stratigraphic levels within a fossil site.

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