scholarly journals Quality Variation of the Moldovan Origanum vulgare L. ssp. vulgare L. and Origanum vulgare L. ssp. hirtum (Link) Ietsw. Varieties in Drought Conditions

Agriculture ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 1211
Author(s):  
Maria Gonceariuc ◽  
Mircea Valentin Muntean ◽  
Violeta Butnaraş ◽  
Marcel Matei Duda ◽  
Anna Benea ◽  
...  
Keyword(s):  
Essential Oil ◽  
Plant Protection ◽  
Climatic Conditions ◽  
The Other ◽  
Origanum Vulgare ◽  
Polyphenol Content ◽  
Drought Conditions ◽  
Polyphenolic Content ◽  
Quality Variation ◽  
Selection Of

In this paper, we have comparatively analyzed two subspecies of Origanum vulgare (O. vulgare ssp. hirtum and O. vulgare ssp. vulgare) in climatic conditions with higher than usual temperatures from the Institute of Genetics, Physiology and Plant Protection Chisinau, Rep. Moldova. The aim of the research was to study the producing capacity, content, composition of essential oil, as well as the polyphenols content in O. vulgare varieties, their drought testing and the selection of promising cultivars. Seven O. vulgare ssp. vulgare (Ov) varieties and fourteen O. vulgare ssp. hirtum (Oh) varieties were used as the biological material. The essential oil (EO) separated by hydrodistillation was analyzed by GC-MS techniques. The polyphenolic content was assessed using spectrophotometric techniques. The presence of a direct correlation between the content, production of essential oil and content of polyphenols has been highlighted. Thus, the varieties of O. vulgare ssp. hirtum demonstrate a higher content of essential oil than the varieties of O. vulgare ssp. vulgare, while the polyphenol content, on the other hand, is higher for the varieties of O. vulgare ssp. vulgare than for those of O. vulgare ssp. hirtum. This research has resulted in the selection of two varieties, i.e., “Savoare” of O. vulgare ssp. hirtum and “Panacea” of O. vulgare ssp. vulgare.

scholarly journals Selection of plant species for permanent ground cover in vineyards: Looking for an agronomic and environmental optimum

2019 ◽  
Vol 15 ◽  
pp. 01007
Author(s):  
N. Delabays ◽  
A.F. Grogg ◽  
M. Mota ◽  
U. Piantini
Keyword(s):  
Plant Species ◽  
Plant Protection ◽  
Ground Cover ◽  
Plant Protection Products ◽  
Climatic Conditions ◽  
Soil Protection ◽  
Green Cover ◽  
Increased Risk ◽  
Seed Mixture ◽  
Selection Of

The installation of a permanent ground cover in vineyards offers numerous agronomic (soil protection, soil fertility) and environmental (reduced leaching of nutrients and of plant protection products, reduced use of herbicides, biodiversity) benefits. Nevertheless, such ground covers are not always free of drawbacks (competition for water and nitrogen, increased risk of frost, management). For the growers, the challenge is to manage the green ground covers in such a way as to preserve their advantages while limiting these drawbacks. Among the tools available to the winegrower is the sowing of a seed mixture composed of selected species: a choice depending of the soil and climatic conditions of the parcel, but also of the different, and sometime contradictory, objectives of the grower. This paper lists the agronomic and environmental issues addressed by the installation of a permanent ground cover in vineyards. It describes two concrete situations – ground cover for vineyards integrated in agro-ecological networks and green cover on the row of vines (as alternative to glyphosate) – for which, according to the objectives and the impacts, a choice of plant species is proposed. At last, it presents the trials now carried out to validate and optimize those selections, as well as the first observations and results gathered to date.

MINT SELECTION FOR DIFFERENT SPECIFIC PURPOSES

1970 ◽  
pp. 52-55
Author(s):  
А. I. Morozov
Keyword(s):  
Essential Oil ◽  
Clonal Selection ◽  
Abiotic Factors ◽  
Climatic Conditions ◽  
Stress Factors ◽  
High Yield ◽  
The Russian Federation ◽  
Abiotic And Biotic Factors ◽  
Mint Leaf ◽  
Selection Of

In article questions of selection of mint – a valuable aromatic plant in our country are considered. Using wild-growing types of mints as donors of the economic and useful signs and also various methods of selection – clonal selection, hybridization, a mutagenesis by selectors are created the high-yield, steady against biotic and abiotic factors of the external environment, adapted to cultivation to concrete soil climatic conditions grades of mint of different purpose. Their comparative sortoispytaniye in the conditions of the Nonchernozem zone of the Russian Federation showed that on set of economic and valuable signs Medichka  grades, Lekarstvennaya 4, Yantarnaya and Aromatnaya, possessing a good bouquet and aroma of an essential oil which are the most perspective for cultivation on a mint leaf, whereas grades the Moskvichka and Kubanskaya 6 with the increased content of menthol in oil more are suitable for production of an essential oil and mentholum were allocated. The profitability level of peppermint production due to the peculiarities of the varieties, their yield, resistance to abiotic and biotic factors, and the high costs of manual labor during planting, depends on the region of cultivation. In most cases, this is due to the shortcomings of the existing assortment of this crop in a given zone. A set of varieties is needed that can use the favorable environmental factors (natural and anthropogenic) with the greatest efficiency and stand against stress factors simultaneously. The further selection work with mint directed to increase in content biologically of the active materials in a feed stock, has to be conducted with use of methods of genomic selection.

scholarly journals Pemuliaan Tanaman Nilam (Progestemon cablin) Lokal Melalui Perkembangbiakan Vegetatif

2016 ◽  
Vol 18 (2) ◽  
pp. 123
Author(s):  
Hermin Pancasakti Kusumaningrum ◽  
Endang Dwi Purbajanti ◽  
Agus Setiadi
Keyword(s):  
Essential Oil ◽  
Vegetative Propagation ◽  
Rainy Season ◽  
Raw Materials ◽  
Climatic Conditions ◽  
Dry Season ◽  
The Other ◽  
Surrounding Area ◽  
Local Varieties ◽  
Different Seasons

Patchouli essential oil is an dominant product from Batang but its production has not been able to meet export needs. The main problem in the production of essential oil of patchouli is limited amount of seeds and dry season effect on the growth of patchouli. On the other hand, society units of patchouli essential oil is very dependent on the availability of raw materials  of patchouli. Searching of patchouli local varieties must  develop in order to  encourages of sustainibility of patchouli production. The purpose of this activity is search and propagate patchouli plant from local varieties that can survive in different seasons of the year according to the climatic conditions of Batang. The study was conducted with the search and propagation of patchouli plant varieties used by farmers in Batang which is Sidikalang varieties and local varieties originating from Batang region and the surrounding area. Furthermore, the vegetative propagation using cuttings will be use followed by its growth observation during dry and rainy season. Results showed that the activities of patchouli plant local varieties of Bandungan, Kendal and Batang showed the best growth in the dry season. Key words: patchouli, vegetatif growth, essential oil.

scholarly journals Biological properties and phytochemical characterization from Miconia chamissois Naudin aqueous extract

2021 ◽  
Vol 20 (4) ◽  
pp. 427-442
Author(s):  
Lorena Ferreira Gomes ◽  
◽  
Diegue Henrique Nascimento Martins ◽  
Sandra Marcia Mazutti da Silva ◽  
Yuri Yabu de Barros ◽  
...  
Keyword(s):  
Aqueous Extract ◽  
Biological Properties ◽  
The Other ◽  
Inhibition Activity ◽  
Polyphenol Content ◽  
Promising Alternative ◽  
Polyphenolic Content ◽  
Chromatographic Profile ◽  
Low Cytotoxicity

The objective of this study was to evaluate biological and phytochemical properties of the aqueous extract from the leaves of Miconia chamissois Naudin (AEMC). Phytochemical properties were assessed by analyzing the chromatographic profile and the polyphenol content of AEMC. Biological properties evaluation was conducted based on cytotoxicity assay and by evaluating the antioxidant, antimicrobial, and enzymatic inhibition activities. Results indicated the presence of phytochemicals in AEMC such as flavonoids and polyphenols, including rutin, isoquercitrin and vitexin derivatives. AEMC showed antioxidant activity, which may be attributed to the high polyphenolic content. Moreover, AEMC demonstrated in vitro enzyme inhibition activity against tyrosinase and alpha-amylase, as well as showed low cytotoxicity. On the other hand, AEMC exhibited weak antimicrobial activity against S. aureus and C. albicans. Thus, AEMC is a promising alternative in search of potential drugs for the treatment of diseases induced by oxidative stress and inflammation, conditions due to hyperpigmentation processes, such as melisma, as well as for diabetes.

THE ANATOMICAL-MORPHOLOGICAL FEATURES OF OREGANO ORDINARY ($ORIGANUM~VULGARE~\mathrm{L.}$) WIDLY GROWING IN ARMENIAN FLORA DURING THE PRE-BLOSSOMING PERIOD

2021 ◽  
Vol 55 (1 (254)) ◽  
pp. 46-51
Author(s):  
Armenuhi V. Moghrovyan
Keyword(s):  
Essential Oil ◽  
Raw Materials ◽  
Climatic Conditions ◽  
Morphological Features ◽  
High Density ◽  
Origanum Vulgare ◽  
Oil Glands ◽  
Capitate Trichomes ◽  
Microscopic Studies ◽  
Climatic Features

The article reports the results of microscopic studies of the oregano leaf in the pre-blossom period. In particular, the following anatomical and morphological features of the oregano leaf during the pre-blossom period were revealed: sinuous cuticle, multicellular simple trichomes, capitate trichomes, stomata, essential oil glands. The latter were located only in the central part, and were absent at the margins. The essential oil glands were of high density mostly in the central part of the raw materials preparation, which were harvested from the regions of dry climatic conditions as opposed to the raw materials harvested from the region of wet climatic conditions. The results of the investigation were definitely conditioned by the climatic features of the regions.

scholarly journals Biocontrol of Carrot Disease-Causing Pathogens Using Essential Oils

Plants ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 2231
Author(s):  
Simona Chrapačienė ◽  
Neringa Rasiukevičiūtė ◽  
Alma Valiuškaitė
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Fungal Pathogens ◽  
Plant Protection ◽  
Biological Activities ◽  
Colony Growth ◽  
Origanum Vulgare ◽  
Significant Step ◽  
Significant Yield ◽  
Chemical Pesticides

Diseases caused by fungal pathogens such as Alternaria spp. damage the commercial appearance of carrots or cause foliage diseases, resulting in significant yield losses each year and are a source of pre- and postharvest rots. European commission encourages the reduction of chemical pesticides. Therefore, the potential of essential oils for alternative plant protection is increasingly discussed. Furthermore, essential oils naturally produced by aromatic plants are rich in secondary metabolites, which possess several biological activities, and their use could be a significant step in environmentally friendly food production. This study aimed to evaluate the Origanum vulgare subsp. vulgare and Origanum vulgare subsp. hirtum essential oils efficacy on Alternaria spp. growth inhibition. A Clevenger-type apparatus was used to extract the essential oils from the fresh material. The Alternaria spp. radial colony growth was evaluated under essential oils concentrations from 200 to 600 µL L−1. Each essential oil separately was mixed with a PDA medium and Alternaria spp. disk placed in the center of the Petri dishes. Plates were incubated at 25 °C in the dark and evaluated 1, 2, 3, and 7 days after inoculation. The results revealed little difference between the essential oils, and the most effective concentration was 600 µL L−1 of O. vulgare subsp. vulgare essential oil and 400 µL L−1 of O. vulgare subsp. hirtum. Our findings can help to control carrot disease-causing pathogens Alternaria spp., but further research is needed.

scholarly journals Water Deficit and Seasonality Study on Essential Oil Constituents ofLippia gracilisSchauer Germplasm

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Elizangela Mércia de Oliveira Cruz ◽  
Jéssika Andreza Oliveira Pinto ◽  
Saymo Santos Fontes ◽  
Maria de Fátima Arrigoni-Blank ◽  
Leandro Bacci ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Rainy Season ◽  
Climatic Conditions ◽  
The Other ◽  
Major Constituent ◽  
Composition Analysis ◽  
Chemical Composition Analysis ◽  
The Stability ◽  
Dry And Rainy Seasons

The aim of this study was to analyze the chemical composition of the essential oil from leaves ofLippia gracilisgenotypes, in the dry and rainy seasons, and with and without irrigation. The extraction of essential oil was realized by hydrodistillation in a Clevenger apparatus. The chemical composition analysis was performed using a GC-MS/FID. The leaves of theL. gracilisgenotypes provide essential oil with content between 1.25% and 1.92% in the rainy season and 1.42% and 2.70% in the dry season; when irrigation was used the content was between 1.42% and 2.87%, without irrigation contents were between 1.60% and 3.00%. The chemical composition ofL. gracilisshowed high levels of terpenes. The major constituent of genotypes LGRA-106 was thymol and carvacrol was the major constituent for the other genotypes. Concentrations showed little variation between seasons, demonstrating the stability of the chemical composition ofL. graciliseven with different climatic conditions.

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