Motahareh Ershad Langroudi; Davood Hashemabadi; Sepideh Kalateh Jari; Leila Asadpour
Volume 10, Issue 1 , Winter 2020, , Pages 15-25
Abstract
Alstroemeria (Alstroemeria hybrida) is one of the most important cut flowers in the world. The aim of this study is investigating on the effect of dill and cumin essential oils on physiological and microbiological traits of alstroemeria cut flowers. Hydro-distillation method and GC isolated the essential ...
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Alstroemeria (Alstroemeria hybrida) is one of the most important cut flowers in the world. The aim of this study is investigating on the effect of dill and cumin essential oils on physiological and microbiological traits of alstroemeria cut flowers. Hydro-distillation method and GC isolated the essential oils of seed and GC/MS examined the chemical compositions of the samples. This experiment carried out as factorial based on completely randomized design with two factors of essential oils of dill and cumin (50 and 100 ppm). The second factor was used of methods (pre-harvest, post-harvest). The results showed that the dill essential oil treatment (100 ppm) in pre-harvest was the best treatment for all known traits. 11 colonies of bacteria were identified in stem end of cut alstroemeria flowers; which are E-coli, Enterobacter, Klebsiella, Proteus, Serratia, Citrobacter, Pseudomonas, Staphylococcus aureus, Streptococcus, Bacillus cereus and Actinomycetes. Due to the positive impact of dill essential oil (100 ppm) in the pre-harvest method in improving traits associated with vase life of cut alstroemeria flowers, these treatments are recommended.
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).
Mehrdad Babarabie; Hossein Zareie; Feryal Varasteh
Volume 4, Issue 3 , Spring 1393, , Pages 169-174
Abstract
The present study has assessed the effect of Cola in increasing flower longevity of flower and delaying aging of cut Alstroemeria ‘Balance’. Distilled water was used as control. Traits of flower diameter, solution absorption ,anthocyanins, total soluble solids and chlorophyll were measured ...
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The present study has assessed the effect of Cola in increasing flower longevity of flower and delaying aging of cut Alstroemeria ‘Balance’. Distilled water was used as control. Traits of flower diameter, solution absorption ,anthocyanins, total soluble solids and chlorophyll were measured at 3 times and vase life was measured daily. Based on the results, flower diameter, anthocyanins and chlorophyll were significant at 1% level and solution absorption was significant at 5% level. The highest flower longevity was related to concentration 500 ml L-1 Cola with 16 days, while the control was 9 days. The highest solution absorption rate belonged to 250 ml L-1 treatment of Cola. Cola concentration of 375 ml L-1 had the greatest flower diameter and chlorophyll. According to the results of means comparison, amount of anthocyanin in different concentrations of Cola was the same. In general, Cola delayed aging Alstroemeria flowers due to having compounds such as citric acid, phosphoric acid, sugar,sodium benzoate, etc., and by providing flowers with required carbohydrates and antimicrobial effect.
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.
Azam Isapareh; Abdollah Hatamzadeh; Mahmood Ghasemnezhad
Volume 4, Issue 2 , Winter 1393, , Pages 115-122
Abstract
The abscission of Alstroemeria petals is the serious problem at the industry of cut flowers of this plant. In this study, cut Alstroemeria cv. Bridal flowers were pulsed with solutions containing natural essential oil carvacrol, gibberellic acid and benzyladenine (50 and 100 mg L-1), -5-sulfosalicylic ...
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The abscission of Alstroemeria petals is the serious problem at the industry of cut flowers of this plant. In this study, cut Alstroemeria cv. Bridal flowers were pulsed with solutions containing natural essential oil carvacrol, gibberellic acid and benzyladenine (50 and 100 mg L-1), -5-sulfosalicylic acid (1 and 1.5 mM) and sucrose (5 and 10%) for 24 hours. The distilled water was used as control. After treatment, the flowers were placed in distilled water, and maintained at temperature of 22±2oC, 70±5% relative humidity, and 15 mmol m-2 s-1 light intensity 12 hours per day. The results showed that 50 and 100 mg L-1 gibberellic acid could significantly delay flower senescence with 3.33 and 3 days, respectively as compared to the other treatments. The highest petal anthocyanin content was found at gibberellic acid (50 and 100 mg L-1), benzyladenine (100 mg L-1) and 5-sulfosalicylic acid (1.5 mM) than other treatments. Conversely, lipid peroxidation content and catalase enzyme activity was lower in these treatments as compared to the control. The protein content of gibberellic acid (50 and 100 mg L-1) pulse treated flowers was higher than other treatments. In contrast, the flowers treated with 100 mg L-1 gibberellic acid showed the lowest peroxidase enzyme activity. Overall, the vase life of Alstroemeria cut flowers cv. Bridal increased in both gibberellic acid treatments (50 and 100 mg L-1) than other studied solutions.
Fardin Nasri; Nasser Ghaderi; Jaafar Mohammadi; Seyed Najmedin Mortazavi; Mahmood Koshesh Saba
Volume 3, Issue 4 , Summer 1392, , Pages 221-228
Abstract
The dormancy characteristics and optimum conditions for seed germination of Alstroemeria ligtu had not been explained. In vitro and in vivo alstroemeria (A. ligtu hybrid) seed germination tests were conducted in a Randomized Completely Design at two different treatments (gibberellic acid (GA3) 0, 100, ...
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The dormancy characteristics and optimum conditions for seed germination of Alstroemeria ligtu had not been explained. In vitro and in vivo alstroemeria (A. ligtu hybrid) seed germination tests were conducted in a Randomized Completely Design at two different treatments (gibberellic acid (GA3) 0, 100, 200 and 400 mg/l with and without stratification in 5±1oC) in four replications. Seeds were planted in the soil mixture (peat/sand/perlite 1:1:1) or 1.2 MS media (1% sucrose, 0.7% agar and pH to 5.8). After 3-weeks keeping in the stratification conditions, transferred to the growth chamber (21oC and 16h photoperiod). Shoot and root length, number of root and leaf, root and shoot fresh and dry weight, seed germination percentage, germination rate and mean germination time were recorded during experiment. Stratification had a significant effect on seed germination (p<0.05). Soaking for 24 h in 100 mg/l GA3 supplemented with stratification under in vitro and in vivo conditions increased germination up to 76.67% and 70.00%, respectively. Mean germination time (MGT) decreased with duration of stratification and concentration of GA3. Seeds treated with 100 mg.l-1 GA3 plus 21 days of stratification produced the seedlings with the higher number of leaf, length of shoot, shoot and root dry weight in both In vivo and in vitro conditions. Non-stratified seeds without GA3 application fail to germinate, whereas seeds chilled for 21 days had 36.6%, 40.0% germination under in vivo and in vitro, respectively. Stratification was successful in breaking seed dormancy; stratification at 5±1oC for 21 days or 100 mg/l GA3+21 days of stratification overcame seed dormancy and increased the germination percentage of A.ligtu hybrid seeds. Thus, seeds of A.ligtu hybrid species probably exhibit a combination of physiological dormancy. In general, In vivo germination rates were lower than in vitro rates.