scholarly journals Production and composition of Lavender oil: nutritional management and cultivation systems

2021 ◽  
Vol 20 (6) ◽  
pp. 649-659
Author(s):  
Roberta Camargos de Oliveira ◽  
◽  
Jarbas dos Reis Silva ◽  
Jose Magno Queiroz Luz ◽  
Arie Fitzgerald Blank ◽  
...  
Keyword(s):  
Experimental Design ◽  
Essential Oil ◽  
Open Field ◽  
Oil Content ◽  
Summer Season ◽  
Nutritional Management ◽  
Nutrient Source ◽  
Cultivation System ◽  
Cultivation Systems ◽  
Different Types

The objective was to evaluate the production and composition of lavender essential oil, simultaneously at open field and greenhouse, in spring-summer season, under different types of fertilization. Each cultivation system was considered an experiment (field and greenhouse), and in both, the experimental design used was randomized blocks, with five treatments, being fertilization with nutrient source - 100% mineral (100% M), 100% organic (100% O), 100% organomineral (100% OM), 50% organomineral (50% OM), and without fertilization (control), and three repetitions. Better performance and productivity of Lavandula dentata is related to respectively 100% OM and 50% OM fertilization in the field and greenhouse. The essential oil content does not differ between cultivation systems and kind of fertilizers, and the majorities compounds were 1.8-cineol, fenchone and camphor.

Effect of Harvest Times on Rhizoma Yield, Essential Oil Content and Composition in Iris germanica L. Species

2019 ◽  
Vol 7 (5) ◽  
pp. 707 ◽  
Author(s):  
Nimet Kara ◽  
Gökhan Gürbüzer
Keyword(s):  
Experimental Design ◽  
Essential Oil ◽  
Oil Content ◽  
Essential Oil Composition ◽  
Oil Composition ◽  
Root Yield ◽  
Iris Germanica ◽  
Made In

Research was conducted to examining the effects of harvest periods on root yield, essential oil content, resinoid content and essential oil composition of Iris species. Iris germanica field in Kuyucak town of Isparta which plant 3 years were constituted in 2016 year as three replications plots according to randomized block experimental design. Harvest was made in the middle each month from April to September (6 periods). Number of rhizomes weight, fresh rhizome yield, dry rhizome yield, essential oil ratio, resinoid ratio and composition in the Iris germanica were determined. In the study, differences between rhizome yield and examining characteristics of Iris germanica according to harvesting periods were statistically significant. Number of rhizomes varied between 3.27-6.47 per plant, rhizome weight 85.55-186.52 g per plant, fresh rhizome yield 972.8-1651.2 kg da-1, dry rhizome yield 212.33-457.50 kg da-1, essential oil and resinoid ratio of rhizome obtained after harvest 0.057-0.076%, 8.00-10.57% essential oil and resinoid ratio in stored rhizomes 0.10-0.14%, 6.95-10.45%, respectively. Rate of α-iron and ɣ-iron components that determine to qualities in essential oil of Iris rhizomes in after harvest varied between 16.1-27.7% and 23.4-50.8% and 29.4-31.2% and 55.2-59% in the essential oil stored rhizomes of Iris germanica, respectively.

scholarly journals Growth and essential oil content of accessions of Lippia rotundifolia in Minas Gerais, Brazil

2021 ◽  
Vol 56 ◽  
Author(s):  
Messulan Rodrigues Meira ◽  
Ernane Ronie Martins ◽  
Julio Cesar Rodrigues Lopes Silva ◽  
Brayonn Mascarenhas Azevedo
Keyword(s):  
Experimental Design ◽  
Essential Oil ◽  
Aerial Part ◽  
Oil Content ◽  
Minas Gerais ◽  
Stem Diameter ◽  
Average Width ◽  
Randomized Experimental Design ◽  
Number Of Leaves ◽  
Essential Oil Yield

Abstract The objective of this work was to evaluate the growth and essential oil content after transplantation and cutting of Lippia rotundifolia accessions from a natural population from the state of Minas Gerais, Brazil. Eight accessions were evaluated (PVP, GIG, RPE, ODA, JFE, PRP, SGS, and RTI) in six periods (60, 81, 102, 123, 144, and 165 days after transplanting and cutting), in a completely randomized experimental design. The following parameters were assessed: average width and length of the basal, median, and apical pair of leaves; plant height; stem diameter; and number of leaves. At 165 days, the yield of essential oil and the fresh and dry phytomass of the aerial part were also evaluated. Sixty days after the last evaluation, regrowth was measured from height, stem diameter, and number of leaves. The JFE accession stands out for emission of leaves, with a better development at 165 days after transplanting. RPE and PRP respond well to regrowth at 102 and 123 days after cutting, respectively. The SGS accession shows a high essential oil yield of 2.2%, and PVP, a low yield of 0.3%.

scholarly journals Potassium sources and doses in coriander fruit production and essential oil content

2020 ◽  
Vol 38 (3) ◽  
pp. 268-273
Author(s):  
Marta Simone Mendonça Freitas ◽  
Ygor de Souza Gonçalves ◽  
Thaísa Capato Lima ◽  
Paulo Cesar dos Santos ◽  
Diego Alves Peçanha ◽  
...  
Keyword(s):  
Experimental Design ◽  
Essential Oil ◽  
Essential Oils ◽  
Potassium Chloride ◽  
Oil Content ◽  
Fruit Production ◽  
Agricultural Crop ◽  
Potassium Sulphate ◽  
Potassium Sources ◽  
Oil Concentration

ABSTRACT Potassium (K) is one of the most required agricultural crop macronutrients, with potassium chloride being the most applied source. However, this fertilizer is not recommended for several crops due to its high chlorine content, promoting final product quality losses, thus being replaced by potassium sulphate. The aim of the present study was to evaluate the production and macronutrient, essential oil and linalool contents of coriander fruits submitted to different potassium sources and doses. The research was performed in a greenhouse, in plastic 46 kg boxes applying a mixture of soil and sand as substrate. The experimental design was of randomized blocks, applying a 2x4 factorial arrangement, with two potassium sources (potassium chloride and sulphate) at four doses (50, 100, 150 and 200 mg of K/kg substrate), performing four replicates. The highest fruit yields, and phosphorus and sulfur fruit contents were verified in plants fertilized with K2SO4. The application of increasing potassium doses, regardless of the source, resulted in increased K and decreased Ca contents and did not affect N and Mg fruit levels in the fruits. The highest essential oil concentration in fruits (0.15 g) and linalool in essential oils (0.42 mg) were verified when 153.8 and 131.3 mg of K/kg substrate using K2SO4 were applied, respectively.

scholarly journals Effects of Cultivation Systems and Environmental Conditions on Peppermint (Mentha × piperita L.) Biomass Yield and Oil Content

2017 ◽  
Vol 45 (2) ◽  
pp. 576-581 ◽  
Author(s):  
Camelia OROIAN ◽  
Ilie COVRIG ◽  
Antonia ODAGIU ◽  
Cristian MĂLINAȘ ◽  
Cristina MOLDOVAN ◽  
...  
Keyword(s):  
Environmental Conditions ◽  
Oil Content ◽  
Field Experiments ◽  
Biomass Yield ◽  
Block Design ◽  
Dry Weight ◽  
Mentha Piperita ◽  
Organic System ◽  
Cultivation System ◽  
Cultivation Systems

Peppermint (Mentha × piperita L.) is perennial plant cultivated for essential oil production. In the present study, field experiments were conducted to determine the performance of peppermint under different cultivation systems for two consecutive growing periods in 2015 and 2016. The effects of environmental conditions on peppermint biomass yield and oil content was also evaluated. The experiments were carried out according to randomized complete block design with five replications per cultivation system. The results of the present study indicate that the total aboveground dry weight and dry leaves biomass were affected by cultivation system and year. For both growing seasons, the highest values were found under the conventional farming system. In contrast, oil content was approximately 14% higher in organic system than in conventional system. Moreover, oil content differed by year, with higher values being observed in 2015 comparing to 2016. Both oil content and biomass yield were positively affected by high temperatures. The results from this study demonstrated that both environmental conditions and the cultivation systems affect the biomass and oil content in peppermint crop.

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