scholarly journals (132) Study on Morphological Characteristics and Essential Oil Constituents Bulgarian Oil-bearing Rose

HortScience ◽  
2006 ◽  
Vol 41 (4) ◽  
pp. 1013A-1013
Author(s):  
Natasha Kovacheva ◽  
Krasimir Rusanov ◽  
Valtcho Jeliazkov (Zheljazkov) ◽  
Nedko Nedkov

Bulgaria is famous for its 330-year-old-tradition in rose oil production, which is based on the Kazanluk rose (Rosa damascena Mill. f. trigintipetala Dieck.). The Bulgarian rose oil (otto) is recognized as the ultimate rose oil. For successful selection and breeding work of oil-bearing roses, information is needed on the variation of morphological and phenological characteristics and essential oil composition of locally available genotypes. We estimated the correlation coefficients between yields and morphological characteristics of 15 genotypes of Bulgarian oil-bearing rose. It was found that rose yields depended mostly on the number of flowers, the number of flower branches per bush, and the weight of individual flowers (r = 0.99, 0.88, and 0.84, respectively). Also, we established correlations between the concentrations of various essential oil constituents of the Bulgarian rose oil. Generally, higher concentration of citronellol + nerol was associated with lower concentration of geraniol and stereo-terpens (r = –0.76 and –0.59, respectively). Also, higher concentration of citronellol + nerol was positively correlated to increased concentration of terpene aldehydes (r = 0.63) and esters (r = 0.48). The geraniol concentration was positively correlated to stearoptenes (r = 0.57). Both morphological characteristics and essential oil constituents should be used for further selection of high-yielding cultivars with desirable essential oil composition.

2017 ◽  
Vol 130 (3) ◽  
pp. 543-551 ◽  
Author(s):  
Seyed Ahmad Sadat Noori ◽  
Maryam Norouzi ◽  
Ghasem Karimzadeh ◽  
Khadijeh Shirkool ◽  
Mohsen Niazian

2012 ◽  
Vol 7 (8) ◽  
pp. 1934578X1200700 ◽  
Author(s):  
Kalina Danova ◽  
Milka Todorova ◽  
Antoaneta Trendafilova ◽  
Ljuba Evstatieva

The influence of plant growth regulators (PGR) on the essential oil composition and in vitro development of A. alba shoot cultures was studied. Two types of oils were determined, based on their terpenoid content. Close relations between the morphogenetic effects of PGR and the essential oil profile of the species were observed. Predominance of root over shoot development was connected with a drop in the amounts of sesquiterpenoids and the direction of biosynthesis towards oxygenated monoterpenoids in the PGR-free control medium, as well in those with 1.0 mg L−1 indole-3-butyric acid (IBA) supplementation. On the contrary, lack of root formation and stimulated callusogenesis caused by the addition of 0.2 mg L−1 6-benzyladenine (BA), irrespectively of the presence of IBA (either 0.5 mg L−1 or 1.0 mg L−1), resulted in the strong prevalence of sesquiterpenoids in the oils. These results are indicative that the morphological development of A. alba shoot cultures affects the terpenoid biosynthetic pathway bringing out the hypothesis for a possible root to shoot signaling.


Author(s):  
Abbas Gorji-Chakespari ◽  
Ali Mohammad Nikbakht ◽  
Fatemeh Sefidkon ◽  
Mahdi Ghasemi-Varnamkhasti ◽  
Eduard Llobet Valero

2002 ◽  
Vol 17 (2) ◽  
pp. 136-140 ◽  
Author(s):  
Kiran G. D. Babu ◽  
Bikram Singh ◽  
Virendra P. Joshi ◽  
Virendra Singh

2020 ◽  
Vol 32 (6) ◽  
pp. 1463-1466
Author(s):  
Tran Thi Kim Ngan ◽  
Tran Quoc T oan ◽  
Mai Huynh Cang

Perilla frutescens essential oil was studied in this work for its physico-chemical characteristics and composition. The essential oil was obtained yields by 0.1%. The physico-chemical properties of the oil were also discovered including the physico-chemical parameters averaged 0.944 g/cm3 for specific gravity, acid index (9.185 mg KOH/g), ester index (28.66 mg KOH/g), refractive index (1.4976). Thought gas chromatography/mass spectrometry (GC/MS). The results revealed that the oil is extremely rich in myristicin (43.896%), elemicin (28.793%), α-caryophyllene (8.327%), perillaldehyde (7.973%), (Z,E)-farnesene (2.807%), D-limonene (1.043%). The results showed that the morphological characteristics and the polymorphism in the essential oil composition of perilla leaves were reliant on the harvesting time and geographical cultivate. Perilla essential oil is antioxidant, antibacterial and used in many studies, helping to find its effect on Alzheimer′s disease, memory loss, concentration and anti-depressive concentration, because it contains unique compounds as above


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