Nastaran Sadeghi Hafshejani; Davood Hashemabadi
Volume 6, Issue 1 , Winter 2016, , Pages 49-58
Abstract
For the improvement the postharvest longevity of cut alstroemeria (Alstroemeria hybrida L.), a factorial experiment was carried out based on RCD with 2 factors of stem end splitting at two levels (5 cm splitting and without splitting) and ethanol at five levels (0, 1, 2, 4 and 6%), 10 treatments, 3 replications ...
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For the improvement the postharvest longevity of cut alstroemeria (Alstroemeria hybrida L.), a factorial experiment was carried out based on RCD with 2 factors of stem end splitting at two levels (5 cm splitting and without splitting) and ethanol at five levels (0, 1, 2, 4 and 6%), 10 treatments, 3 replications and 30 plots. In this experiment, the estimated traits included vase life, water absorbtion, fresh weight, dry matter percent, ethylene, petal anthocyanin, electrolyte leakage and lipid peroxidation (MDA). ANOVA showed significant differences among treatments for vase life, water absorbtion, dry matter percent and electrolyte leakage at the 5% probability level and for other traits at the 1% probability level. Results showed that different treatments improved vase life as compared to control and maximum vase life of 19.77 days was achieved under the treatment of ethanol 1% + with 5 cm splitting compared to control (11.09 days).
Shahla Dashtbany; Davood Hashemabadi; Shahram Sedaghat hoor
Volume 5, Issue 2 , Spring 1394, , Pages 97-103
Abstract
The aim of this study is investigation on effect of stem end splitting and Geranium essential oil on vase life on quality of cut chrysanthemum (Dendranthema grandiflorum L.). This experiment arranged as factorial based on RCD with 2 factors of stem end splitting at 2 levels (with splitting and without ...
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The aim of this study is investigation on effect of stem end splitting and Geranium essential oil on vase life on quality of cut chrysanthemum (Dendranthema grandiflorum L.). This experiment arranged as factorial based on RCD with 2 factors of stem end splitting at 2 levels (with splitting and without splitting) and Geranium essential oil at 6 levels (0, 1, 2, 4, 8 and 10 %), with 12 treatments, 3 replications, 36 plots and 144 cut flowers. In this experiment traits such as vase life, water absorption, fresh weight, dry matter percent and °brix were measured. ANOVA showed that different among treatments was significant for vase life, °brix and fresh weight in 1% probability and for dry matter percent and water absorption in 5% probability. Results showed that different treatments improved vase life compared to control and maximum vase life was achieved in 5 cm splitting + 10% Geranium essential oil with 18.41 days compared to control (7.05 days).
Zahra Bagheri Tirtashi; Davood Hashemabadi; Behzad Kaviani; Ameneh Sajjadi; Maryam Jadidsolymandarabi
Volume 4, Issue 3 , Spring 1393, , Pages 163-168
Abstract
In this research, the effects of thidiazuron pulse treatment and salicylic acid were examined to improve vase life and maintain the quality of Alstroemeria ҅Modena҆ cut flowers. The experiment was done in a factorial experiment based on RCD with 16 treatments, 3 replications and 48 plots. The flowers ...
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In this research, the effects of thidiazuron pulse treatment and salicylic acid were examined to improve vase life and maintain the quality of Alstroemeria ҅Modena҆ cut flowers. The experiment was done in a factorial experiment based on RCD with 16 treatments, 3 replications and 48 plots. The flowers were placed in different concentrations of thidiazuron (0, 10, 20, and 50 μM) and salicylic acid (0, 100, 200, and 300 mg l-1) for 24 hours. Then cut flowers were put in a preservative solution containing 3% sucrose and 300 mg l-1 8-HQS.Then, vase life and quality traits such as fresh weight, dry weight, water uptake, amount of soluble solids (˚brix) and cell membrane stability (electrolyte leakage) were evaluated during examination. The results showed that the concentration of 200 mg l-1 salicylic acid, has the highest water uptake and lowest reduction of fresh weight in comparison with the other treatments. In all treatments except for the control, dry weight and soluble solids increased.Also, 20 μM thidiazuron and 100 mg l-1 salicylic acid showed the greatest stability of the cell membrane compared to the control treatment. Finally, 20 μM thidiazuron and 200 mg l-1 salicylic acid with the highest vase life of cut alstroemeria ҅Modena҆ compared to the other treatments is recommended to extend the vase life.
Shahram Shoa Kazemi; Davood Hashemabadi; Ali Mohammadi Torkashvand; Behzad Kaviani
Volume 4, Issue 2 , Winter 1393, , Pages 107-114
Abstract
Pot marigold (Calendula officinalis L.) is a medicinal and ornamental plant. The effect of different concentrations of chlormequat (cycocel), and daminozide, two plant growth retardant, on plant height, flowering, the content of essence and some other traits in pot marigold (Calendula officinalis) was ...
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Pot marigold (Calendula officinalis L.) is a medicinal and ornamental plant. The effect of different concentrations of chlormequat (cycocel), and daminozide, two plant growth retardant, on plant height, flowering, the content of essence and some other traits in pot marigold (Calendula officinalis) was assessed. Plant growth retardants are commonly applied to limit stem elongation and produce a more compact plant. The experiment was done as a factorial in randomized completely blocks design (R.C.B.D.) with 16 treatments and 3 replications in Rasht. Cycocel at 4 concentrations (0, 500, 1000 and 1500 mg/L) and daminozide at 4 concentrations (0, 1500, 3000 and 4500 mg/L) were used. Investigated characteristics were plant height, leaf number, flower number, flowering time, fresh weight, dry matter, the content of essence and carotenoid in flowers. Based on analysis of variance (ANOVA), the effect of different treatments and their interaction on most traits was significant at 0.05 level of probability. The minimum height (24 cm/plant) in treatment of 500 mg/L cycocel + 3000 mg/L daminozide, the largest number of flowers (4.66 flowers/plant) in treatment of 1000 mg/L cycocel + 4500 mg/L daminozide and most essence content (0.154 mg/100 g) in treatment of 4500 mg/L daminozide without cycocel were obtained.
Behzad Kaviani; Davood Hashemabadi; Mohaddeseh Kordi
Volume 4, Issue 2 , Winter 1393, , Pages 101-106
Abstract
Shoot tips from actively growing, greenhouse maintained plants of Kalanchoe blossfeldiana were cultured in vitro for shoot proliferation and root initiation on Murashige and Skoog (MS) basal medium supplemented with NAA and BA, both in concentrations of 0.00, 0.50, 1.00 and 2.00 mg l-1. Results showed ...
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Shoot tips from actively growing, greenhouse maintained plants of Kalanchoe blossfeldiana were cultured in vitro for shoot proliferation and root initiation on Murashige and Skoog (MS) basal medium supplemented with NAA and BA, both in concentrations of 0.00, 0.50, 1.00 and 2.00 mg l-1. Results showed that the maximum plantlets height (7.012 cm), node number (4.516), root number (8.860) and root length (10.160 cm) were obtained in MS medium containing 1 mg l-1 BA + 1 mg l-1 NAA. Maximum shoot number (5.886), leaf number (8.980) and proliferation index (1.791) were calculated in medium supplemented with 1 mg l-1 BA + 0.5 mg l-1 NAA. Minimum plantlets height (1.988 cm), node number (1.283), root number (2.720), root length (3.016 cm), shoot number (1.221), leaf number (2.015) and proliferation index (0.405) were obtained in medium without BA and NAA (control). Fresh and dry weights of plantlets were calculated, too. About 85% of the micropropagated plantlets were established successfully in acclimatization medium containing peat, perlite and sand (1:1:1). Regenerated plantlets were morphologically identical with mother plants.
Davood Hashemabadi; Hamideh Bagheri
Volume 4, Issue 1 , Autumn 1392, , Pages 39-43
Abstract
Maintaining quality and longevity of cut flowers is one of the critical issues in the floriculture industry, especially in cut flowers; and one of the most important problems in chrysanthemum, as one of the most popular cut flowers. Therefore, an experiment was conducted based on completely randomized ...
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Maintaining quality and longevity of cut flowers is one of the critical issues in the floriculture industry, especially in cut flowers; and one of the most important problems in chrysanthemum, as one of the most popular cut flowers. Therefore, an experiment was conducted based on completely randomized design as pulse treatment with the three factors: tea extracts with 4 levels (5, 10, 20, and 40 %), 8-hydroxy quinoline sulfate with 4 levels (100, 200, and 400 mg l-1), and rifampicin with 3 levels (100, 200, and 400 mg l-1) on spray chrysanthemum (cv. Purple) with three replications. According to the results, the 20% tea extract treatment and 100 mg l-1 8-hydroxy quinoline sulfate treatment showed the highest vase life, petal protein, total chlorophyll, water absorption, and petal carotenoid.
Davood Hashemabadi; Mohammad Zarchini; Shokrollah Hajivand; Somayyeh Zarchini
Volume 3, Issue 4 , Summer 1392, , Pages 259-265
Abstract
Chrysanthemum cut flower is not sensitive to ethylene and its vase life depends on vascular blockage. In order to evaluating of effect of antibiotics and essential oils on the vase life and quality characteristics of chrysanthemum cut flower an experiment carried out based on a RCD with 10 treatments: ...
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Chrysanthemum cut flower is not sensitive to ethylene and its vase life depends on vascular blockage. In order to evaluating of effect of antibiotics and essential oils on the vase life and quality characteristics of chrysanthemum cut flower an experiment carried out based on a RCD with 10 treatments: Artemisia at 3 levels (10, 30 and 50 %), amoxicillin at 3 levels (100, 200 and 300 mg l-1), Rifampin at 3 levels (100, 200 and 300 mg l-1) and the control plants in 3 replications. Analysis of variance showed that effect of treatments on measured traits was significant at p£0.05 or p£0.01. Mean comparisons also revealed that 30% of Artemisia oil, 200 mg l-1 amoxicillin and 200 mg l-1 rifampin caused the longest vase life, the highest preservative solution uptake. petal's soluble protein contents, leaf chlorophyll and maximum fresh weight.
Reza Shahabi Mohamadabadi; Mehran Hoodaji; Davood Hashemabadi; Mitra Ataabadi
Volume 2, Issue 4 , Summer 1391, , Pages 257-263
Abstract
Plants are the most common bioindicatorsused in air quality biomonitoring studies because they are immobile and they have more sensitive to the most prevalent air pollutants than humans and animals. To identify the concentrations and sources of heavy metals in ornamental plants of Isfahan landscape, ...
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Plants are the most common bioindicatorsused in air quality biomonitoring studies because they are immobile and they have more sensitive to the most prevalent air pollutants than humans and animals. To identify the concentrations and sources of heavy metals in ornamental plants of Isfahan landscape, samples of leaves and soil around Pinuseldarica and Nerium oleander were collected at different distances (1, 4 and 10 km) from the most populated and dense vehicle traffic area of Isfahan and control site with and opposite wind directions (SW and NE).For determination of heavy metal contamination source, plant leaves were washed with distilled water. Finally, concentrations of zinc, lead and cadmium in soil and plant samples were determined by atomic absorption. Heavy metals were found at higher concentrations in the all studied sites in comparison with control. Heavy metal concentrations were in-creased with reducing distance from contamination center with wind direction. Negligiblecorrelation between plant available Zn and Pb concentrations in soil and metal contents in plant leaves and reduction of these metals by water washing treatment indicated that soil cannot be the source of metal ontamination in plants. Both ornamental plants were found to be appropriate indicators for airborne Zn and Pb contamination, especially Nerium oleander.
Maryam Shirzad; Shahram Sedaghathoor; Davood Hashemabadi
Volume 2, Issue 1 , Autumn 1390, , Pages 61-64
Abstract
Ficus benjaminais a very popular and resistant indoor plant in temperate areas. Cutting is the easiest propagation method of this plant and it requires special treatments such as auxin and appropriate rooting medium. In order to test the suitable auxin (IBA) concentration and rooting media, a factorial ...
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Ficus benjaminais a very popular and resistant indoor plant in temperate areas. Cutting is the easiest propagation method of this plant and it requires special treatments such as auxin and appropriate rooting medium. In order to test the suitable auxin (IBA) concentration and rooting media, a factorial experiment carried out based on randomized complete block design with three replications. Experimental two factors were different concentrations of IBA (0, 2000, 4000 and 6000 ppm) and rooting media (sand, perlite and sand+perlite mixture). Rooting percentage, root number and longest root length was evaluated. Based on the results both rooting percent and longest root length were gained under 4000 ppm IBA. Rooting percent was maximized in combined treatment of "4000 ppm IBA+perlite" and "6000 ppm IBA+ sand". The high number of roots was gained in "6000 ppm IBA+sand".