scholarly journals Çukurova Ekolojik Koşullarında Lavender (Lavandula angustifolia Mill.) de Diurnal Varyabilitenin Bazı Verim ve Kalite Özelliklerine Etkisinin Belirlenmesi

Author(s):  
Çiğdem Sönmez ◽  
Hülya Okkaoğlu

Lavender as called Lavandula angustifolia Mill. is used for many purposes such as pharmaceutical, cosmetics etc industry. The aim of this study is to determine the effects of different harvest hours on yield, essential oil and essential oil yield in lavender. The research was conducted a randomized complete block design with three replications under Karaisalı/Adana ecological conditions. Flowering lavender plants were harvested every two hours starting from 8 am at five different times. The fresh herb yield, dry herb yield, drug flos yield, essential oil content and essential oil yield were determined in 2014 and 2015. The highest means were obtained from harvestings at 8 in morning when lowest means were recorded at harvesting at 14 in afternoon for both drug flos and essential oil yield in similar. Based on the results from research of two years, it was concluded that it would be suitable to harvest in early morning for obtaining high drug flos and essential oil yields.

2016 ◽  
Vol 28 (1) ◽  
pp. 31-40 ◽  
Author(s):  
Bayzid Yousefi

Abstract In order to evaluate flower yield and essential oil content of Rosa damascena, 49 landraces were studied in a randomized complete block design with three replications in Sanandaj (Iran) during 2004-8. An analysis of variance revealed significant differences (p ≤ 0.01) for the number of flowers per plant, flower and petal weight, flower and petal yield per plant, essential oil ratio and essential oil yield per plant among landraces (G), years (Y) and for landrace × year (GY). The landraces of FA1, KR2, KR3, FA2, AR1 and YZ2 with 3291.9, 2526.4, 2298.7, 2239.8, 2077.6 and 1978.7 kg ha−1, respectively, produced the highest flower yield and the landraces of IS3, IS2, KR2, IS4 and FA2 with 413.25, 378.11, 364.31, 315.30 and 296.10 g ha−1, respectively, produced the highest essential oil among all of the landraces. In accordance to this, cluster analysis also classified high flower and essential oil yield landraces in distinct groups at an 87% similarity. According to the results, most landraces that originated from temperate, warm temperates and arid regions such as the FA2, YZ2 and Isfahan group of landraces produced higher flower yield and essential oil than those from cool, cool temperate, semi-arid and humid regions. Taking into consideration flower yield and essential oil, the landraces of KR2, YZ2, IS3, IS2 and FA2 with 2526.4, 1978.7, 1659.8, 1663.2 and 2239.8 kg ha−1 flower yield, respectively, and 364.31, 265.31, 413.25, 378.11 and 296.10 g ha−1 essential oil, respectively, produced the highest flower yield and essential oil content among the landraces and are recommended for semi-temperate and cool areas.


2013 ◽  
Vol 46 (3) ◽  
pp. 89-94 ◽  
Author(s):  
B. Shokati ◽  
K. Ghassemi-Golezan

Abstract Intercropping is an important and sustainable cropping practice in agroecosystems. Intercropping is a planting technique that farmers and gardeners can use to promote beneficial plant interactions and increases in biodiversity, enhanced production and lower economic risk. In the search for sustainable agricultural methods for medicinal plants, fenugreek and dill plants were intercropped at different additive (1:20, 1:40 and 1:60) and replacement (1:1, 1:2 and 1:3) series, at the Research Farm of the Faculty of Agriculture, University of Tabriz, Iran. Field experiment was arranged as split plot based on randomized complete block design in three replicates. Dill umbels were harvested at flowering, pasty and complete ripening stages. Results showed that among harvesting times, pasty stage had maximum essential oil percentage, essential oil yield and harvest index of essential oil, whereas among intercropping patterns, 1:1 and 1:20 treatments had the maximum values. Fenugreek as a medicinal, forage and legume crop promote dill essential oil yield and harvest index and could be an effective plant in intercropping systems.


2017 ◽  
Vol 47 (11) ◽  
Author(s):  
Carlos Juliano Brant Albuquerque ◽  
Sérgio Macedo Silva ◽  
José Magno Queiroz Luz ◽  
César Henrique Zandonadi

ABSTRACT: The objective was to estimate the wood yield and essential oil content in three clones of eucalyptus that were planted in four contrasting arrangements and intercropped with sorghum. Eucalyptus clones MA2001 (Eucalyptus camaldulensis x E. tereticornis), A144 (Eucalyptus urophylla x E. grandis), and GG100 (Eucalyptus urophylla x E. grandis), were planted in single rows (10x2m), double rows (2x3+15m and 2x3+20m); and, triple rows (2x3x2+10m) in a randomized, complete block design experiment with four replicates. Our results demonstrated that planting spacing did not influence the essential oil yield or diameter at breast height in the clones. However, higher density plantings were shown to result in higher fresh weight of branches and leaves per plant. MA2001 grew taller, produced higher quantity of fresh biomass of branches and leaves per plant and volume of wood per hectare, and yielded more essential oil yield than the other clones. We concluded that MA2001 is the most suitable of the clones tested here for cultivation in water deficit conditions.


Agronomy ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1285
Author(s):  
Asma Bastami ◽  
Reza Amirnia ◽  
R. Z. Sayyed ◽  
Hesham A. El Enshasy

The quantitative yield and essential oil percentage and composition of two important savory species in response to various fertilizers were explored in a field experiment as a factorial study based on a randomized complete block design with three replications in north Lorestan, Iran, in 2017–2019. The first factor was assigned to three mycorrhizal fungi (Funneliformis mosseae, Rhizophagus irregularis, and Glomus fasciculatum), phosphate biofertilizer (Baravar-2), fish manure (800 kg/ha), cattle manure (20 t/ha), vermicompost (5 t/ha), and a control (no fertilization); the second factor was assigned to two savory species, including Satureja khuzestanica and S. rechingeri. The results of the combined analysis of variance for the second and third years showed that the simple effects of fertilizers and species were significant on all recorded traits, except for some constituents of the essential oil. Among the mycorrhizal fungi, R. irregularis and S. khuzestanica outperformed S. rechingeri in all traits, except for essential oil content and yield. The interaction between year and species was significant for all traits. The essential oil content of S. rechingeri in the third year (5.1%) was 18% higher than that of S. rechingeri in the second year (4.3%) and 41% higher than that of S. khuzestanica in the third year (3.6%). According to the results, the foliar application of vermin compost at a rate of 5 t/ha can contribute to the sustainable production of both savory species, improving their growth and essential oil yield.


2003 ◽  
Vol 43 (6) ◽  
pp. 651 ◽  
Author(s):  
A. Ozel

This study was conducted to determine the productivity of aging plantation of some mint varieties (Mentha spp.) in Sanliurfa in the south-east of Turkey. The trial was carried out between 1994 and 1998 (5 years) and was designed as a split-plot study, with 3 replications. The M. piperita L. (Mitcham), M. piperita L. (Prilubskaja) and M. spicata (Urfa Local) varieties were used as plant material. Results obtained showed that the fresh herb yield (t/ha), dry herb yield (t/ha), dry leaf yield (t/ha), essential oil yield (L/ha) and essential oil content (%) were significantly affected by the plantation age in all varieties investigated. The yields of fresh herbs, dry herbs, dry leaves and essential oils decreased dramatically in the fourth and fifth years of harvest from the plantation as only 1 harvest could be achieved during these years.


2020 ◽  
Vol 115 (1) ◽  
pp. 171
Author(s):  
Faraj MOAYEDI ◽  
Sajad KORDI ◽  
Ali Ashraf MEHRABI

<p><span>A field experiment was conducted to evaluate yield and some qualitative characteristics of four cultivars of sweet basil treated with different levels of nitrogen fertilizer. The experiments were located on the Agricultural Research Station of Khorramabad, Iran, during the 2016-2017 growing season. Treatments were arranged in factorial split-plot-in time in randomized complete block design with three replications. Experimental treatments were four cultivars of sweet basil (<em>Ocimum basilicum</em> ‘Italian Large Leaf’, <em>O. basilicum</em> ‘Mobarakeh’, <em>O. basilicum</em> ‘Cinnamon’ and <em>O. basilicum </em>‘Thai’), three levels of nitrogen fertilizer (0, 100 and 200 kg ha<sup>-1</sup> urea) and three harvests. The highest total dry mass (3482.4 kg ha<sup>-1</sup>) was related to ‘Italian Large Leaf’ with the application of 200 kg ha<sup>-1</sup> urea at the second harvest. The maximum (26.79 kg ha<sup>-1</sup>) essential oil yield belonged to 100 kg ha<sup>-1 </sup>urea. The highest concentrations of main constituents of essential oil, except methyl chavicol, 1,8-cineole and methyl cinnamate were obtained by control (without nitrogen fertilizer). Italian Large Leaf cultivar and application of 100 kg ha<sup>-1</sup> urea are recommended to access an acceptable agricultural yield and essential oil yield in sweet basil under the environmental condition similar to Khorramabad</span></p>


2018 ◽  
Vol 71 (3) ◽  
Author(s):  
Abraham Ambi Alemu ◽  
Weyessa Garedew ◽  
Aynalem Gebre

Basil is an aromatic, medicinal, culinary, and multifunctional herb which is grown in different parts of Ethiopia. Although the oil distilled from the herb, as well as its herbal yields, are a crucial input in the pharmaceutical industry and for culinary purposes, the yield obtained is below its potential due to various challenges. Genotype and plant spacing are two of the factors which contribute to the low production of the crop. A field trial was conducted at Jimma University College of Agriculture and Veterinary Medicine (JUCAVM) in 2016 and 2017 to assess the effect of genotype and plant spacing on essential oil yield and other yield-related traits of this important herb. Four promising genotypes (BO-1, BO-3, BO-4, and BO-5) and three plant spacings (20, 30, and 40 cm) were studied in a 4 × 3 factorial design arranged as randomized complete blocks (RCBD) with three replications. Data on plant height, leaf area, number of primary branches, essential oil content and oil yield were collected and analyzed. The analysis of variance revealed that there were highly significant (<em>p</em> &lt; 0.01) interaction effect of genotype with plant spacing for all parameters tested. The maximum essential oil yield (7.88 kg ha<sup>−1</sup>) was obtained from genotype BO-5 at 30 cm spacing, whilst the least (2.68 kg ha<sup>−1</sup>) was recorded from BO-1 at 40 cm spacing. The maximum oil content (101 mL g<sup>−1</sup>) was gained from BO-1 at 20 cm, but BO-3 at 30 cm spacing recorded the least oil content though there were no significant differences between the three treatment combinations. Further studies at different locations and seasons will be important to for future local recommendations.


2022 ◽  
Vol 52 (5) ◽  
Author(s):  
Aurislaine Santos Ribeiro ◽  
Suzan Kelly Vilela Bertolucci ◽  
Alexandre Alves de Carvalho ◽  
Wesley Naves Tostes ◽  
Adriane Duarte Coelho ◽  
...  

ABSTRACT: Pogostemon cablin (Blanco) Benth. is an aromatic species popularly known as patchouli. The essential oil rich in patchoulol extracted from leaves is used by the pharmaceutical industries. The objective was to investigate the effects of shade nets and shading intensities on P. cablin growth, anatomy, chemical composition and essential oil content. The experiment was conducted with two types of shade nets (black and Aluminet), three light intensities (30, 50, and 70% shading) and full sun. The different light intensities influenced the growth and the essential oil yield, and chemical composition. Patchouli plants grown in an environment with shading showed higher values for the leaf, stem, root ant total dry weights compared to full sun. At 50% of shading, Aluminet provided gain in stem and total dry weights. Aluminet and black net at 50 and 70% of shading enhance essential oil yield. Patchoulol and pogostol contents were higher under full sun, and, black net and Aluminet at 50% shading. The environment for patchouli cultivation can be improved by use shade nets, especially with Aluminet at 50% of shading.


2019 ◽  
Vol 29 (2) ◽  
pp. 69
Author(s):  
NFN Setiawan ◽  
NFN Gusmaini ◽  
Hera Nurhayati

<table border="1" cellspacing="0" cellpadding="0"><tbody><tr><td valign="top" width="456"><p><em>Citronella grass (</em>Cymbopogon nardus var genuinus<em> L) is an essential oil-producing plant known as "Citronella Oil of Java". Oil is </em><em>resulted</em><em> from leaf distillation. The fertilization of N, P, K and Mg was expected to enhance herb productivity and oil yield of citronella grass. The research was conducted at Cicurug Experimental Garden, Sukabumi from August 2016 - February 2017. The objective of this research was to determine the proper dosage of NPKMg fertilizer on citronella grass in Latosol</em><em> soil type</em><em>. The study was arranged in a Randomized Block Design with 6 fertilization treatments and 4 replications. Fertilizer treatments were (1) without fertilizer (control), (2) NPKMg (12:12:17:2): (2) at the dosage of 141 kg.ha<sup>-1</sup>,(3) 281 kg.ha<sup>-1</sup>, (4) 421 kg.ha<sup>-1</sup>, (5) 526 kg.ha<sup>-1</sup>, and (6) Urea 150 kg.ha<sup>-1</sup>, SP-36         50 kg.ha<sup>-1</sup> and KCl 125 kg.ha<sup>-1</sup> (as comparison). The NPKMg fertilization on citronella grass enhanced plant growth and increased the productivity of biomass and oil yield.  The application of NPKMg fertilization (12:12:17:2) 141 kg.ha<sup>-1</sup> produced 23 tons of herbs, increased by 30.8 % compared to NPK fertilization without Mg. The dosage of NPKMg fertilizer (12-12-17-2) at 281 kg.ha<sup>-1</sup> indicated the best growth and the highest herb production (24 ton.ha<sup>-1</sup></em><em>),</em><em> increased by 39 %, while the highest oil content (1.4 %) was shown by 421 kg.ha<sup>-1 </sup>NPKMg (12-12-17-2) <em>treatment, although the oil yield was insignificant compared to 281 kg.ha<sup>-1</sup>. Thus, the dosage of 281 kg.ha<sup>-1 </sup>NPKMg (12:12:17:2) can be recommended for citronella <ins cite="mailto:ASUS" datetime="2019-06-17T09:10"> grass</ins> cultivated at Latosol<ins cite="mailto:ASUS" datetime="2019-06-17T09:10"> soil type</ins></em></em></p></td></tr></tbody></table>


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