Volume 21, Issue 1 , April 2005
M.A. Soltanipoor
Abstract
To determine the frequency of flowering, viable seed production and other phenological phenomena of Zhumeria majdae under varing site condition (elevation and latitude) about 10 shrubs, of mature age and with the well developed crown were selected and numbered at each site. All sites were visited once ...
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To determine the frequency of flowering, viable seed production and other phenological phenomena of Zhumeria majdae under varing site condition (elevation and latitude) about 10 shrubs, of mature age and with the well developed crown were selected and numbered at each site. All sites were visited once a week during two years. These sites were Geno (800 m above sea level ), Sarchahan (1100 m above sea level ) and Tang-e-zagh (1400 m above sea level ) mountains. The beginning of vegetative growth was 3-20 February. The starting of generative growth was 11-27 March and the beginning of seed falling was 4-22 May. The results showed that the phenological stages of Zhumeria majdae varies according to altitude. In Geno areas vegetative regrowth begins on 1-5 February while with increasing of altitude (1400 m above sea level) regrowth occurs in 20-25 February and vegetative duration is elongated.
F. Ghasemi; A. Jalili; Y. Asri
Abstract
Artemisia is the most important genus of Asteraceae, including about 400 species in the world. These species are important for their medicinal properties. There are about 34 species in Iran.The aerial parts of Artemisia biennis, Artemisia oliveriana, Artemisia aucheri, Artemisia persica and Artemisia ...
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Artemisia is the most important genus of Asteraceae, including about 400 species in the world. These species are important for their medicinal properties. There are about 34 species in Iran.The aerial parts of Artemisia biennis, Artemisia oliveriana, Artemisia aucheri, Artemisia persica and Artemisia scoparia were collected from different localities in Kashan area at flowering stage. Essential oils were isolated by hydrodistillation and were analyzed by capillary GC and GC/MS. The main constituents of the oils were as fallow: A. biennis; α-himachalen (58.74%) A. scoparia; capillin (23.32%), A. persica; sabinen hydrat acetate (76.74%) A. aucheri; camphor (22.87%) A. oliveriana; α-thujone (43.32%). Common constituents were in these species were 1,8-cineol and p-cymene.
S.R. Tabaei-Aghdaei; M.B. Rezaee; K. Jaimand
Abstract
Rosa damascenaMill. genotypes werecollected from central parts of Iran, and cultivated at the experimental field of Research Institute of Forests and Rangelands, using a randomized complete blocks design with three replications. Genotypes from six provinces were evaluated for essential oils yield and ...
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Rosa damascenaMill. genotypes werecollected from central parts of Iran, and cultivated at the experimental field of Research Institute of Forests and Rangelands, using a randomized complete blocks design with three replications. Genotypes from six provinces were evaluated for essential oils yield and number of floral parts. Genotypes showed differences in terms of the measured traits. Essential oils concentration and yield showed variation. The most essential oils percentage (0.05%) and yield were observed in Isfahan7 and Yazd1 accessions, respectively, in 2002. Yazd2 and Isfahan6 accessions showed the highest essential oils percentage (0.03%) in 2001, and the most percentage of oils was observed in accession collected from Tehran, in 2003. Also, accession of Yazd1 demonstrated the highest 3-year mean of essential oils percentage and yield. Furthermore, the accessions showed variation for floral parts number. The highest numbers of petals and pistils were observed in accession collected from Tehran Province. Also, Isfahan10 accession showed the highest number of stamens. A considerable variation was, therefore, revealed for floral parts and essential oil content of Rosa damascena genotypes from central parts of Iran. It could then be concluded that the Rosa damascena genotypes differ for essential oils content and this may be applied for classification of Damask rose genotypes. Finally yield of essential oils as the major product of Rosa damascena could be considered as an appropriate selection factor, in order to improve rose varieties.
F. Askari; F. Sefidkon; S. Meshkizadeh
Abstract
Essential oils were isolated by hydro-distillation from the arial parts and seeds of Pimpinella eriocarpa Banks & Soland Individually, that were collected from khojir (Northeast of Tehran province). The yields of arial parts and seed oils were 1.3% and 5.7%w/w, respectively. Fifteen constituents ...
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Essential oils were isolated by hydro-distillation from the arial parts and seeds of Pimpinella eriocarpa Banks & Soland Individually, that were collected from khojir (Northeast of Tehran province). The yields of arial parts and seed oils were 1.3% and 5.7%w/w, respectively. Fifteen constituents in the aerial parts oil and eight constituents in seed oil were identified. Major constituents of the aerial parts oil were Pregeijerene (59.9%), Limonene (17.6%) and Elemicin (12.5%). Major constituents of the seed oil were Limonene (49.3%) and Elemicin (44.5%). Two major compounds (Limonene and Elemicin) were common in both of the oils. Seven trace constituents of the aerial parts oil were not found in the seed oil at all.
A. Akbarinia; M. Khosravifard; E. Sharifi Ashoorabadi; P. Babakhanlou
Abstract
The effects of irrigation regimes on yield and agronomic characteristics of black cumin (Nigella sativa) were studied at the medicinal plants Research station of Qazvin Agricultural and natuoral resources research center during the years 1997 and 1998. A compele randomized block design(CRBD)with three ...
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The effects of irrigation regimes on yield and agronomic characteristics of black cumin (Nigella sativa) were studied at the medicinal plants Research station of Qazvin Agricultural and natuoral resources research center during the years 1997 and 1998. A compele randomized block design(CRBD)with three replications was used. The treatments comprised four irrigation periods, 7, 14 , 21 interval days and without irrigation.The characteristits studied include of plant height, 1000 grains weight, number of capsule per plant, number of seeds per capsule, seed/capsule weight ratio and seed yield. Results showed that irrigation perriods in each of two years significantly affected effects plant height, number of capsule per plant, number of seed per plant and seed yield. The seven- day irrigation interval had the highest seed yield (1118kgha-1). There was no difference between treatments in respect of 1000 grains weight and grain/capsule weight ratio. However in water deficit and non- irrigation condition, plant showed resistance to the drought and produced crop with minimum soil moisture of the measured parameters, there was a significant correlation between yield, plant height, number of capsule per plant and number of seed per capsule.
M.M. Barazandeh
Abstract
In order to increas the yield and quality of an eucalyptus essential oil(eucalyptus globulus) the leaves of plant was collected from Research Station of Zaghmarz in Pasansd of Behshahr and was identified by the staff of botanical department of Research Institute of Forests and Rangelands.Dried and ground ...
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In order to increas the yield and quality of an eucalyptus essential oil(eucalyptus globulus) the leaves of plant was collected from Research Station of Zaghmarz in Pasansd of Behshahr and was identified by the staff of botanical department of Research Institute of Forests and Rangelands.Dried and ground leaves of plant were steam and hydro distilled and fractions were collected every fifteen minutes. Proceeding of distillation time resulted to increas the yield and reduce cineole content. In steam distillation method,the oil yield was increased from 1.6% after 5 min. to 2.42% after 180 min. whereas 1,8-cineole content was reduced from 82.2% to 74.8%, respectively. In hydrodistillation method, the oil yield was increased from 1.55% after 15 min. to 2.86% after 180 min. whereas cineole content was reduced from 92.7% to 85.6%, respectively. Fifteen compounds were identified among which 1,8-cineole (74.8%-82.2%), α-pinene (6.28-7.70%) and limonene (5.70-6.20%) in steam distillation method and 1,8-cineole (85.60-92.70%), α-pinene (2.02%-2.37%) and limonene (2.04%-3.10%) in hydrodistillation method were the major constituents, respectively.
A. Zarezadeh; M.A. Dehghani Tafti; K. Dashtakian
Abstract
There are many different plant species in arid ecosystems. The most species are rare and decaying. In addition there are some exclusive species in arid zones. These ecosystems are the center of biodiversity and have many species. This research was carried out as a part of research projects of medicinal ...
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There are many different plant species in arid ecosystems. The most species are rare and decaying. In addition there are some exclusive species in arid zones. These ecosystems are the center of biodiversity and have many species. This research was carried out as a part of research projects of medicinal plants and also by field observations and library information in 1994-2004. There have been introduced 37 species beloning to 25 families as drought tolerance medicinal plants in this survey. In addition, Persian name, family, growing form, propagation, parts used, chemical constituents and great medicinal properties were described. Some dominant plant families that are important from the point of view of medicine and growing in arid zones were: Lamiaceae, Apiaceae, Solanaceae, Fabaceae, Papaveraceae, Cucurbitaceae, Chenopodiaceae, Asteraceae, Capparidaceae, Liliaceae. The most number of medicinal species were related to Solanaceae, Apiaceae and Lamiaceae families.
E. Sharifi Ashoorabadi; M.H. Lebaschi; A. Matin; B. Abbaszadeh; K. Alizadeh Anaraki
Abstract
To investigation of Eenergy efficiency in agroecosystem, a field experiment was carried out on Mellisa officinlais in Alborz research complex in 2004 year. The treatments was 80 kgha-1 nitrogen application in soil and spry application (%2 nitrogen) that was compared to the control treatment (no fertilizers) ...
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To investigation of Eenergy efficiency in agroecosystem, a field experiment was carried out on Mellisa officinlais in Alborz research complex in 2004 year. The treatments was 80 kgha-1 nitrogen application in soil and spry application (%2 nitrogen) that was compared to the control treatment (no fertilizers) in complete randomize block design with three replication. In both treatments, the first application was conducted when plant high was 10 cm and second application was after 30 days. The harvest carried out before flowering. The energy efficiency was calculated by a software that had been designed.The results showed that, the spry method was significant (a=%5) to others. In comparison of other treatments, the spry application of nitrogen, increased energy efficiency to 2.14. In the spry method, nitrogen fertilizer reduced. Based on the results, low input Agriculture systems could be introduced for sustainable agriculture.
