3 research outputs found
Analysis of the Foeniculum vulgare Mill. collection by the complex of features in the conditions of the Crimea foothills
Received: February 24th, 2021 ; Accepted: May 8th, 2021 ; Published: Accepted: May 19th, 2021 ; Correspondence:[email protected] vulgare Mill. is a valuable essential oil plant, which raw materials and
derived products, and, above all, essential oil, are widely used in the perfume and cosmetics,
liquor, paint and varnish industries, in the food industry and medicine. The source material for
cultivated plants selection, including F. vulgare, is the collections of the gene pool. The objective
of this study was a comparative study of F. vulgare samples collection by the complex of features
to clarify the possibility of identifying sources of economically valuable characteristics for
creating promising breeding material. The study of the F. vulgare collection supported by the
Research Institute of Agriculture of Crimea, which includes 75 samples rom 28 countries, was
conducted in 2017â2019 at an experimental base located in the Crimea Foothills (Krymskaya
Roza village, Belogorsky district). The collection samples were analyzed according to
morphobiological parameters and productivity indicators. The work was guided by generally
accepted methods, including those developed for essential oil plants. Statistical processing of the
obtained data was carried out. The wide variability of the collection is shown, according to
individual indicators (variation coefficients - from 8.3 to 54.4%). In this way, the mass fraction
of essential oil (one of the most important indicators) varies within a wide range in the collection
- from 1.09 to 3.86% (of absolutely dry mass) in whole plants and from 4.16 to 8.53% in fruits.
The composition of the essential oil depends on the raw material. The anethole content reaches
80% in fruit oil, and the content of fenchone and terpene compounds is increased during the plant
processing. The results of the collection analysis are basic, allowing preliminary sampling with
high productivity indicators for inclusion in breeding studies
Comparative anatomical and morphological characteristics of two subspecies of Melissa officinalis L. (Lamiaceae)
Received: February 23rd, 2022 ; Accepted: May 22nd, 2022 ; Published: July 30th, 2022 ; Correspondence: [email protected] aim of the research is to comprehensively compare the anatomical and morphological
structures of plants of Melissa officinalis subsp. officinalis (âKrymchankaâ and âLadaâ varieties)
and of M. officinalis subsp. Đ°ltissima (Sm.) Arcang. These plants have pronounced differences in
morphological features and production indexes. They are grown in the collection of aromatic
plants of the Research Institute of Agriculture of the Crimea (Krymskaya Roza village,
Belogorsky district of Crimea). These studies will allow us to supplement the botanical
characteristics of both subspecies of M. officinalis, and also to evaluate their plasticity and
possibilities of adaptation to growing conditions. For examination we collected plants in the
flowering phase. Anatomical study was carried out using a fixed (alcohol: glycerin : water in a
ratio of 1: 1: 1) and native preparation. A complex of mesomorphic and xeromorphic characters
is established, that confirms the high plasticity and determines the adaptive capabilities of the
species when introduced into various soil and climatic conditions. A variety of epidermal
structures was revealed, which are represented by single and multicellular non-glandular
trichomes and various types of glandular structures. Among them, trichomes with a multicellular
pedicle and a unicellular head, which we found only in M. officinalis subsp. officinalis
Characteristics of the
The purpose of this study was to analyze the Foeniculum vulgare Mill. collection by the content and component composition of essential oil. The study was carried out in 2017-2019. The collection is located in the experimental site of the Research Institute of Agriculture of Crimea, located in the Crimea Foothill (Krymskaya Roza village) in accordance with the developed methods. The component composition of F. vulgare essential oil was determined by the method of gas chromatography on the âCrystal 5000.2â. It was found that the essential oil content in mature F. vulgare fruits amounted to the average of 5,88± 0.10%, which was higher than in the green plantsâ material - 2,36± 0.06%. The main component of the essential oil is anethole. The anethole content in essential oil from fruits was higher than from the green plantsâ material: 64.9-84.3% and 33.5-74.6%, respectively. 66.0% of the analyzed samples corresponded to ISO 17412:2007 requirements. Essential oil from the green plantsâ material contained more α-phellandrene compared to essential oil from fruits: 1.5-19.9% and 0.1-0.4%, respectively. According to the research results, 9 promising samples with a high content of essential oil in fruits - from 6,52 ± 0.88 to 8,10± 0.91% were distinguished