Agriculture and horticulture
A. Rahmani; E. Sharifi Ashourabadi; A. Ebrahimi; M. Mirza
Abstract
To investigate the effects of soil fertility methods on the yield and yield components of hyssop (Hyssopus officinalis L.) in the different harvests, an experiment was conducted as a factorial in a randomized complete block design with three replications in Karaj (Alborz province) in 2017. The experimental ...
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To investigate the effects of soil fertility methods on the yield and yield components of hyssop (Hyssopus officinalis L.) in the different harvests, an experiment was conducted as a factorial in a randomized complete block design with three replications in Karaj (Alborz province) in 2017. The experimental treatments included the harvest time and soil fertility methods. The results showed that the first harvest had higher plant height, number of sub-branches, and leaf area index and the second harvest had higher plant dry matter weight and chlorophyll content. With the soil fertility, the plant height, number of sub-branches, plant dry matter weight, leaf area index, chlorophyll content, essential oil yield, and nutrients uptake increased significantly. The highest plant height and number of sub-branches was obtained from the application of 120 kg ha-1 nitrogen+ 96 kg ha-1 phosphorus+ 120 kg ha-1 potassium treatment. The maximum dry matter weight of the plant was allocated to the combination of 20 t ha-1 manure with 80 kg ha-1 nitrogen+ 64 kg ha-1 phosphorus+ 80 kg ha-1 potassium. The highest essential oil yield was obtained from the 120 kg ha-1 nitrogen+ 96 kg ha-1 phosphorus+ 120 kg ha-1 potassium treatment which was statistically in the same group as the treatments including 40 t ha-1 manure, combination of 30 t ha-1 manure with mycorrhiza, and combination of 40 kg ha-1 nitrogen+ 32 kg ha-1 phosphorus+ 40 kg ha-1 potassium with 30 t ha-1 manure. Based on the results, the desired quantitative and qualitative yield in hyssop could be achieved with the integrated feeding method and use of biological and organic fertilizers.
Agriculture and horticulture
J. Maleki; E. Sharifi Ashourabadi; M. Mirza; H. Heydari Sharifabad; M.H. Lebaschy
Abstract
To investigate the effects of soil fertility methods on the quantitative yield and oil of medicinal plant black cumin (Nigella sativa L.), an experiment was conducted in a randomized complete blocks design with three replications. Experimental treatments included different levels of NPK chemical fertilizers, ...
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To investigate the effects of soil fertility methods on the quantitative yield and oil of medicinal plant black cumin (Nigella sativa L.), an experiment was conducted in a randomized complete blocks design with three replications. Experimental treatments included different levels of NPK chemical fertilizers, different levels of manure, combination of NPK+manure, and combination of NPK+manure with Azorhizobium biofertilizer inoculation. The results showed that plant nutrition increased plant height, plant dry weight, number of lateral branches, leaf area index, number of capsules per plant, number of seeds per capsule, grain yield, biological yield, relative leaf water content, and percentage and oil yield. The highest quantitative and qualitative characteristics were obtained in the chemical nutrition in the treatment of NPK: 120-96-120 (kg ha-1) and in the manure nutrition in the treatment of manure: 20 ton ha-1. In the chemical+manure combined method, the treatment of NPK: 40-32-40 (kg ha-1)+manure: 30 ton ha-1 was the best one. In the chemical+manure+biological combined method, the treatment of manure: 30 ton ha-1+ Azorhizobium+ NPK: 40-32-40 (kg ha-1) was observed as the most appropriate treatment. Overall, the combined treatment of NPK: 40-32-40 (kg ha-1) + manure: 30 ton ha-1+ Azorhizobium had the most positive effect on improving the biological yield and black cumin oil percentage, which also had the lowest amount of chemical fertilizer.
M.H. Lebaschi; E. Sharifi Ashourabadi; M. Makizadeh Tafti; A.H. Talebpour; J. Hasani; Kh. Karimzadeh; S. Asadi sanam
Abstract
In order to study the effect of plant density on some quantitative and qualitative characteristics of Thymus pubescens Boiss. & Kotschy ex Celak under rainfed conditions, a field experiment was conducted in a randomized complete block design with three replications in three different dry farming ...
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In order to study the effect of plant density on some quantitative and qualitative characteristics of Thymus pubescens Boiss. & Kotschy ex Celak under rainfed conditions, a field experiment was conducted in a randomized complete block design with three replications in three different dry farming regions of the country during two years. Experimental treatments consisted of plant density (25, 35 and 50 cm between plants on rows equal to 8, 6 and 4 plant/m2, respectively), time (first and second year after planting) and location (East Azarbayjan, Kordestan, and Tehran). The traits including plant height, canopy diameter, dry matter yield of aerial parts, essential oil yield and content were measured at full flowering stage. The results of ANOVA indicated the significant effect of density, location and time and their interaction on all traits studied. The highest dry matter yield (1147 kg ha-1) was obtained in both two years in Tehran at 8 plant/m2. Kordestan with 2.25% and East Azarbayjan with 0.43% had the highest and lowest essential oil percentage, respectively. In density × location interaction, the highest amount of essential oil yield was obtained in Kordestan (21.73 kg ha-1) and Tehran (17.88 kg ha-1) at a density of 8 plant/m2. Thymus pubescens showed higher dry matter and essential oil yield under high plant density, indicating the establishment and adaptation of the species to different rainfed regions of the country especially Damavand and Kordestan.
M.H. Lebaschy; E. Sharifi Ashoorabadi; B. Abbass zadeh
Volume 20, Issue 4 , January 2018, , Pages 441-455
Abstract
In order to optimizing nitrogen application for Hypericum perforatum production, a completely randomized block design (CRBD) was carried out with 6 treatments and 3 replications. The nitrogen application treatments were 0, 30, 60, 90, 120 and 150 kg Nha-1. In 1999 hypericin produced by application of ...
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In order to optimizing nitrogen application for Hypericum perforatum production, a completely randomized block design (CRBD) was carried out with 6 treatments and 3 replications. The nitrogen application treatments were 0, 30, 60, 90, 120 and 150 kg Nha-1. In 1999 hypericin produced by application of 150 kg Nha-1 in the first harvest and 90 kg Nha-1 in the second harvest were in the maximum rates. Also hypericin yield have no significant difference among 90, 120 and 150-kg Nha-1 treatments in both harvests. In the first harvest from 1999 max. harvest index was 37% in control and min. was 27.7% which obtain in 150 kg Nha-1 treatment. Hypericin yield in first and second harvests of 1999 and also mean annuals among the medium and max. nitrogen application treatments, have not significant difference. Thus it seems application medium rates of nitrogen (90 kg Nha-1) is sufficient for producing high hypericin yield and also this medicinal plant couldnt consumes high fertilizer.
A. Akbarinia; A. Ghalavand; Z. Tahmasebnbi; F. Sefidcon; E. Sharifi; M.B. Rezaii
Volume 18, Issue 1 , February 2003, , Pages 89-109
Abstract
This experiment was conducted on 2001 and 2002 in reseach farm of Qazvin Agriculture Research Station, in order to study the effect of different rates of nitrogen, Phosphorus (Conventional system), manure (Organic system) and mixture of them (Integrated system) on seed yield and essential oil content ...
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This experiment was conducted on 2001 and 2002 in reseach farm of Qazvin Agriculture Research Station, in order to study the effect of different rates of nitrogen, Phosphorus (Conventional system), manure (Organic system) and mixture of them (Integrated system) on seed yield and essential oil content of Ajowan (Carum copticum). The experimental design was used randomized complete blocks with three replication. Treatments included: different rates of N and P (as mixture) with 4 levels, different rates of manure with 3 lebvels, mixture of N, P and distillation method. The results showed that increase in N and P fertilizer up to 90 and 60 kg/ha respectively, was followed by seed yield increase but fertilizers had no effect on the essential oil content. Also, seed yield essential oil content increased as a result of increase in manure application. In general integrated treatments in respect of seed yeild and essential oil yield were higher than other treatments.
M.B. Rezaee; K. Jaimand; E. Sharifi Asorabadi; M. Maddah; A. Majd
Volume 12, Issue 1 , May 2002, , Pages 1-27
Abstract
Ozone layer depletion has increased ultraviolet-B radiation influence. As this radiation has harmful effects on plants, this research studies the essential oils quality and quantity changes of Fennel all affected by high ultraviolet radiation emanated form a 40-watt lamp in the field conditions in three ...
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Ozone layer depletion has increased ultraviolet-B radiation influence. As this radiation has harmful effects on plants, this research studies the essential oils quality and quantity changes of Fennel all affected by high ultraviolet radiation emanated form a 40-watt lamp in the field conditions in three phases: before flowering, flowering and after the formation of seed. Fennel is one of the precious medicinal plants widely used in pharmacy, purfurm, cometic and hygienic industries as well as food industries. The seeds or fruits of this plant have so much essential oils that medicinal properties of the plant are attributed tothis essential oils. The water and steam distilled (Long & Kaiser) essential oils of seeds, flowers, leaves and stems of Fennel in different vegetative phases was analyzed by GC and GC/MS. The amount of essential oils in leaf, stem, flower and seeds has been decreased in the most of phases and essential oils’ components changed under ultraviolet radiations. The amount of Trans-anthole, which is the most important compound of this essential oil, has been decreased in the seed and flower of under treatment plants but this compound has been increased in the stem in spite of less amount of essential oils in this organg, this compound has been decreased in leaf before flowering phase but incraesed in flowering period. The other main compounds, Estragol, Fenchon and Limonene have been increased, in most cases. This results indicates this plants is very sensetive to ultraviolet radiations.
M.H. Lebaschy; A. Matin; Gh. Amin; E. Sharifi; L. Ahmadi
Volume 10, Issue 1 , November 2001, , Pages 39-64
Abstract
Fluctuation of hypericin and yield in Hypericum perforatum was examined in Karaj Research Station in 1989. In this study chemical fertilizer, organic manure and combination of them were allocated in subplot, and plant density was allocated as main plot with 4,5.7 and 10 plant m?. In a split plot design ...
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Fluctuation of hypericin and yield in Hypericum perforatum was examined in Karaj Research Station in 1989. In this study chemical fertilizer, organic manure and combination of them were allocated in subplot, and plant density was allocated as main plot with 4,5.7 and 10 plant m?. In a split plot design under CRBD with 3 replication. Hypericin in the tops from the first harvest was extracted and measured by Soxhlet and spectrophotometer. Hypericin extraction was performed in two stages by CHCL3 and MeOH and measured by standard hypericin. The results showed that the combination of fertilizer and manure and also manure alone produced maximum hypericin, in the first harvest which were 2262 and 2197 ppm, respectively. Hypericin yields of the mentioned treatments with 4684 and 4534 gr/ha also showed significant difference with chemical fertilizer and control. The highest hypericin yield produced in 10 plant m density. Sum of hypericin yields for combination of manure and fertilizer treatment in two harvests reaches to 8094 gr/ha. It seems that combination of chemical fertilizer and manure by improvement of the soil physical, chemical and biological properties are able to improve hypericin content without any toxicity in this medicinal plant.
