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Phytochemical Analysis and Potential for Exploitation of Heterosis for Essential Oil Contents in Rosa Species
(2006)  Page(s) 113-114.  
 
'Gruss an Teplitz'

Percentage Composition of the Components Identified through Gas Chromatography in Essential Oil of Rosa Extracted through Hexane Solvent Extraction.

Citronellol 12.854
Methyl Eugenol 3.564
Geraniol 2.974
Geranyl Acetate 14.587
Phenyl ethyl Alcohol 47.235
Linalool 1.875
Nerol 1.351
Benzaldehyde 2.045
Benzyl Alcohol 3.214
Rhodinyl Acetate 2.985
Citronellyl Acetate 0.786
Benzyl Acetate 0.568
Phenyl ethyl Formate 3.0145

Percentage Composition of the Components Identified through Gas Chromatography in Essential Oil of Rosa extracted through Ether Solvent Extraction

Citronellol 13.483
Methyl Eugenol 3.217
Geraniol 2.792
Geranyl Acetate 15.245
Phenyl ethyl Alcohol 46.432
Linalool 0.899
Nerol -
Benzaldehyde 1.321
Benzyl Alcohol 4.512
Rhodinyl Acetate 3.710
Citronellyl Acetate 2.481
Benzyl Acetate -
Phenyl ethyl Formate -
 
(2006)  Page(s) 41.  
 
Liu et al. (1982) studied the oxygenated portion of Qi Li xiang rose (Rosa banksia normalis) oil and identified following compounds: α-ionone, dihydro α-ionone,...5,6,7,7a-tetra hydro-4,4,7a trimethyl-2 (4H)-benzofuranone, n-hexyle benzoate, benzyl caprate, 1-hexadecane, 2-pentadecanone, benzyl laurate, 9,17-octadecdienal, 1-eicosyne, benzyl arachidate, benzyl myristate, di-n-octyl phtalate, benzyl stearate, benzyl palmitate, benzyl behanate,...
(2006)  Page(s) 115-116.  
 
The fruit setting (development of hips) was very poor in the species Rosa borboniana even when selfed (22%). It did not set any fruit when crossed with Rosa damascena either as male or female parent. It was observed that when this species was crossed with the species Rosa centifolia no fruit was developed when used as male but success of fruit setting percentage was very low (4.28%) when used as female parent. This reflects that these two Rosa species had no compatibility with Rosaborbonica. However, a limited success in fruit setting (10%) was observed in the crosses Rosa borboniana x Rosa 'Gruss an Teplitz' and rosa 'Gruss an Teplitz' x Rosa borboniana....
 
(2006)  Page(s) 42.  
 
Zhaolin et al. (1988) used gas-chromatography and mass spectrometry for analysis of the essential oil and the fragrant volatile oil compound from the Rosa centifolia flowers. 26 copmpounds were identified from the fragrant volatiles and 35 compounds from the essential oil. Major constituents of the fragrant volatile oil include Phenyl ethanol, Citronellol, Geraniol and Citronellyl acetate.
 
(2006)  Page(s) 77.  
 
Graph: Flower production...under Faisalabad climatic conditions. Rosa centifolia. [12 to >60 blooms per month January-December with a peak in May with >60 blooms]
 
(2006)  Page(s) 123-125.  
 
In the Rosa centifolia species an increase in the number of flowers per plant was observed with the increasing temperature, which seems a unique character in roses. The flower production of Rosa centifolia was maximum in the hottest months of the year, i.e. May, June and July...The species, Rosa centifolia performed excellently under Faisalabad climatic conditions and produced fabulous flowering throughout the year. From the results it was recorded that a single plant of rosa centifolia produced about 500 fragrant flowers/year....
...the initiation of leaves followed by an inflorescence is repeated cyclically in Rosa centifolia.....lw concentrations of GAs permit floral induction in Rosa centifolia throughout the growing season.
(2006)  Page(s) 113-114.  
 
R. centifolia

Percentage Composition of the Components Identified through Gas Chromatography in Essential Oil of Rosa Extracted through Hexane Solvent Extraction.

Citronellol 54.745
Methyl Eugenol 3.901
Geraniol 2.684
Geranyl Acetate 2.524
Phenyl ethyl Alcohol 30.691
Linalool 1.687
Nerol -
Benzaldehyde 1.156
Benzyl Alcohol 0.085
Rhodinyl Acetate 1.951
Citronellyl Acetate 0.789
Benzyl Acetate 0.245
Phenyl ethyl Formate 0.879

Percentage Composition of the Components Identified through Gas Chromatography in Essential Oil of Rosa extracted through Ether Solvent Extraction

Citronellol 52.737
Methyl Eugenol 3.324
Geraniol 1.982
Geranyl Acetate 2.501
Phenyl ethyl Alcohol 33.789
Linalool 1.723
Nerol -
Benzaldehyde 0.973
Benzyl Alcohol 0.321
Rhodinyl Acetate 1.512
Citronellyl Acetate 1.832
Benzyl Acetate -
Phenyl ethyl Formate -
 
(2006)  Page(s) 124-125.  
 
Rosa damascena produced flowers only in the months of March and April but as the temperature increased, it stopped producing flowers....From the present results it was revealed that Rosa damascena produced flowers only for 7 to 8 weeks....
It may be concluded that floral induction in Rosa damascena is permitted shortly after bud break in spring when concentrations of GAs are low and is inhibited by the subsequently higher levels of GAs.
(2006)  Page(s) 77.  
 
Graph: Flower production...under Faisalabad climatic conditions. Rosa damascena. [March 25 blooms, April 35 blooms - compared to R. centifolia which bloomed around the whole year]
(2006)  Page(s) 113-114.  
 
R. damascena

Percentage Composition of the Components Identified through Gas Chromatography in Essential Oil of Rosa Extracted through Hexane Solvent Extraction.

Citronellol 62.134
Methyl Eugenol 4.214
Geraniol 1.254
Geranyl Acetate 3.524
Phenyl ethyl Alcohol 19.254
Linalool 1.247
Nerol 0.234
Benzaldehyde 0.234
Benzyl Alcohol 1.257
Rhodinyl Acetate 2.345
Citronellyl Acetate 1.810
Benzyl Acetate 0.941
Phenyl ethyl Formate 0.781

Percentage Composition of the Components Identified through Gas Chromatography in Essential Oil of Rosa extracted through Ether Solvent Extraction

Citronellol 57.247
Methyl Eugenol 3.781
Geraniol 1.132
Geranyl Acetate 3.532
Phenyl ethyl Alcohol 22.721
Linalool 1.107
Nerol -
Benzaldehyde 0.432
Benzyl Alcohol 1.543
Rhodinyl Acetate -
Citronellyl Acetate 1.243
Benzyl Acetate -
Phenyl ethyl Formate -
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