Effects of seed irradiation on yield and quality of essential oil in palmarosa (Cymbopogon martinii Stapf.)

Euphytica ◽  
1986 ◽  
Vol 35 (2) ◽  
pp. 369-380 ◽  
Author(s):  
H. K. Srivastava ◽  
B. R. Tyagi
Keyword(s):  
Essential Oil ◽  
Yield And Quality ◽  
Seed Irradiation ◽  
Cymbopogon Martinii

scholarly journals Influence of Organic and Inorganic Fertilizers on Coriander (Coriandrum sativum L.) Agronomic Traits, Essential Oil and Components under Semi-Arid Climate

Agronomy ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1427
Author(s):  
Gulen Ozyazici
Keyword(s):  
Essential Oil ◽  
Seed Yield ◽  
Harvest Index ◽  
Agronomic Traits ◽  
Climatic Conditions ◽  
Coriandrum Sativum ◽  
Inorganic Fertilizers ◽  
Yield And Quality ◽  
Biological Yield

Environmental contamination and the excessive use of inorganic fertilizers resulting in stagnant yields of field crops which necessitate the utilization of combined fertilization approach under changing climatic conditions. Current study was aimed to clarify the influence of several fertilizer sources (chemical, organic, organomineral fertilizers) on yield and quality of coriander (Coriandrum sativum L.). The results revealed that the fertilizer sources significantly affected the yield of coriander cultivars. The absence of “Year x Variety x Fertilizer Type” interactions for any of the noted parameters signaled that the detected “Variety x Fertilizer Type” interactions were constant regardless of the year factor. The recorded values of traits according to fertilizer sources different for the plant height from 61.85 to 69.67 cm, number of branches from 5.98 to 7.71 (piece/plant), number of umbels per the main umbel from 5.62 to 7.18 pieces, seed yield from 1.06 to 1.66 t/ha, the biological yield from 4.29 to 5.70 t ha−1, harvest index from 25.29 to 29.41%, essential oil ratio from 0.29 to 0.33%, and essential oil yield from 3.1 to 5.6 L ha−1. Erbaa variety was observed to be superior over the rest of the varieties producing the maximum values of 6.5 L ha−1 of essential oil, 0.36% essential oil content, 30.9% harvest index, 1.81 t/ha seed yield, and 5.9 t ha−1 biological yield with the treatment of chemical fertilizers.

scholarly journals Influence of preemergently applied herbicides on the yield and quality of caraway achenes (Carum carvi L.)

2008 ◽  
Vol 56 (2) ◽  
pp. 255-266
Author(s):  
Antonín Vaculík
Keyword(s):  
Essential Oil ◽  
Standard Length ◽  
Oil Content ◽  
Competitive Ability ◽  
Weed Species ◽  
Yield And Quality ◽  
Significant Difference ◽  
Positive Effect ◽  
Different Doses

Caraway has very low competitive ability against most of weed species. Therefore, it is important to choose a suitable herbicide control, especially at biennial caraway. The experiments with the herbicides applied in caraway were found in pure growth, with variety Kepron (with standard length of ve­ge­ta­ti­ve period). The aim of the trials was to find out the differences at achenes yiled and essential oil content after the treatment by the various herbicides, applied preemergently. Also, the selective ac­ti­vi­ty of individual herbicides was tested, including the different doses. The herbicides used in the ex­pe­ri­ments had enough level of selektivity on the plants of caraway. They had a positive effect on the yiled comparing to non-treated control variant in all observed years. There was no statistically significant difference in essential oil kontent between the treated variants and non-treated control. On the basis of these results, the most suitable herbicide was chosen for the „minor“ registration for caraway.

scholarly journals Optimized supercritical CO2 extraction conditions on yield and quality of torch ginger (Etlingera elatior (Jack) R.M. Smith) inflorescence essential oil

2020 ◽  
Vol 154 ◽  
pp. 112581
Author(s):  
Anis Asyila Marzlan ◽  
Belal J Muhialdin ◽  
Nur Hanani Zainal Abedin ◽  
Nameer Khairullah Mohammed ◽  
Muna Mahmood Taleb Abadl ◽  
...  
Keyword(s):  
Essential Oil ◽  
Supercritical Co2 ◽  
Supercritical Co2 Extraction ◽  
Yield And Quality ◽  
Etlingera Elatior

Effect of harvest date on the yield and quality of the essential oil of peppermint

1993 ◽  
Vol 73 (3) ◽  
pp. 815-824 ◽  
Author(s):  
William A. Court ◽  
Robert Pocs ◽  
Robert C. Roy
Keyword(s):  
Essential Oil ◽  
Plant Biomass ◽  
Essential Oil Composition ◽  
Harvest Date ◽  
Mentha Piperita ◽  
Oil Composition ◽  
Yield And Quality ◽  
Loamy Sand Soil ◽  
Physical And Chemical

A field experiment was conducted from 1989 to 1991 on a Fox loamy sand soil to study the effects of harvest date on selected agronomic, physical and chemical characteristics of peppermint (Mentha piperita L.). Plant biomass and essential oil yields increased throughout the season to a maximum in very late August to early September. Menthol, neomenthol, and menthyl acetate concentrations increased in the essential oil with plant development. The amount of menthone and isomenthone was highest in immature plants. The concentrations of menthofuran and pulegone in the essential oil corresponded to the amount of flower bloom in the peppermint. Changes during the season in the concentrations of piperitone, terpinene-4-ol, α-terpineol, 1,8-cineole, limonene, γ-terpinene, terpinolene, α-terpinene, α-pinene, β-pinene, 3-octanol, β-myrcene, Linalool, sabinene, caryophyllene and Germacrene-D were typically quite small. In general, these preliminary results indicate that peppermint can be grown successfully on the coarse-textured soils of Ontario. Key words: Mentha piperita L., peppermint, essential oil, essential oil composition, harvesting date

scholarly journals Yield and composition of supercritical fluid extracts of different Lamiaceae herbs: Satureja hortensis L., Ocimum basilicum L. and Melissa officinalis L.

2008 ◽  
Vol 14 (4) ◽  
Author(s):  
G. Kutta ◽  
Zs. Pluhár ◽  
Sz. Sárosi ◽  
A. L. Fülöp ◽  
G. Sándor
Keyword(s):  
Essential Oil ◽  
Supercritical Fluid ◽  
Extraction Procedure ◽  
Ocimum Basilicum ◽  
Melissa Officinalis ◽  
Plant Materials ◽  
Satureja Hortensis ◽  
Yield And Quality ◽  
Carbon Dioxide Extraction

In our work the effectiveness of supercritical carbon dioxide extraction was studied on volatile and nonvolatile components of Lamiaceae herbs. The aim of our investigations was to determine the optimal extraction parameters yielding high amount of volatiles and nonvolatiles in a desirable composition. As plant materials, dried and powdered cude drugs of Satureja hortensis, Ocimum basilicum and Melissa officinalis were chosen. Pressure (8-50 MPa), temperature (35-60 °C), time (5-60 min) and the ratio of modifier (5-50% methanol) of extraction were regulated. Results obtained by supercritical fluid extraction (SFE) were compared to that of the conventional extraction procedure, hydrodistillation (HD). In the case of Satureja hortensis, Ocimum basilicum and Melissa officinalis extract yield of SFE was comparable to the essential oil amount obtained by hydrodistillation from the same drug. Essential oil rich extracts were analysed by GC-FID, while extracts rich in nonvolatile compounds were analysed by HPLC. We have found that yield and quality of SFE extracts highly depend on the conditions of extraction.

scholarly journals Effects of Plant Density on the Number of Glandular Trichomes and on Yield and Quality of Essential Oils from Oregano

2016 ◽  
Vol 11 (6) ◽  
pp. 1934578X1601100 ◽  
Author(s):  
Teresa Tuttolomondo ◽  
Salvatore La Bella ◽  
Claudio Leto ◽  
Giuseppe Bonsangue ◽  
Raffaele Leone ◽  
...  
Keyword(s):  
Essential Oil ◽  
Plant Density ◽  
Glandular Trichomes ◽  
Principal Component ◽  
Glandular Trichome ◽  
Origanum Vulgare ◽  
Hair Density ◽  
Complex Issue ◽  
Yield And Quality

Plants yields are influenced by agronomic techniques. Plant density is a complex issue and extremely important when maximizing both crop quality, and biomass and essential oil yields. Plants belonging to the Origanum vulgare subspecies hirtum (Link) Ietswaart were grown adopting four types of plant density and were characterized in biometric and chemical terms. The samples were analyzed using the ANOVA (Principal Component Analysis) statistical method regarding biometric aspects, EO yield and peltate hair density. Essential oil (EO) was extracted by hydrodistillation and analyzed using GC-FID and GC-MS. GC-FID and GC-MS analysis led to the identification of 45 compounds from the EO. Plant density affected production both in terms of biomass and EO. However, it was not found to have affected peltate glandular trichome density or EO quality.

Effect of drying with ultrasonic pretreatment on the yield and quality of the essential oil of Varronia curassavica Jacq. and Ocimum gratissimum Linn

2020 ◽  
Vol 147 ◽  
pp. 112211 ◽  
Author(s):  
Naiara C. Zotti-Sperotto ◽  
Evandro de C. Melo ◽  
Michelle I.L. de Souza ◽  
Maira C.M. Fonseca ◽  
Diego A. Gonzaga ◽  
...  
Keyword(s):  
Essential Oil ◽  
Ultrasonic Pretreatment ◽  
Ocimum Gratissimum ◽  
Yield And Quality
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