فهرس المقالات Gerbera

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  1 - مقایسه سموم کنفیدور و پالیزین در کنترل حشرات کامل سفید‌بالک گلخانه در گلخانه‌های کشت تجاری ژربرا در پاکدشت
  زهرا علی‌بخشی ثمین صدیق بهرام تفقدی‌نیا
  ژربـرا مورد حمله تعـداد زیادی از آفـات قرار می گیـرد که یکـی از مهم تریـن آن ها سفید بالک گلخـانه (Trialeurodes vaporariorum Westwood) می باشد. عمدتاً به روش کنترل شیمیایی با این آفت مبارزه می شود و هر ساله مقادیر قابل توجهی ارز جهت وارد کردن حشره کش های مورد نیاز برای أکثر

  ژربـرا مورد حمله تعـداد زیادی از آفـات قرار می گیـرد که یکـی از مهم تریـن آن ها سفید بالک گلخـانه (Trialeurodes vaporariorum Westwood) می باشد. عمدتاً به روش کنترل شیمیایی با این آفت مبارزه می شود و هر ساله مقادیر قابل توجهی ارز جهت وارد کردن حشره کش های مورد نیاز برای کنترل این آفت مصرف می شود. در این تحقیق تأثیر دو سم پالیزین و ایمیداکلوپراید (کنفیدور) در کنترل T. vaporariorumروی ژربرا با یکدیگر مقایسه گردید. آزمایش در یک گلخانه تجاری کشت ژربرا در شهرستان پاکدشت، استان تهران و با استفاده از گلدان های ژربرا بدون گل و تقریباً هم اندازه انجام گرفت. قبل و بعد از آزمایش، تعداد جمعیت پوره و حشره کامل پشت برگ ها تخمین زده شد. فاکتور های مورد آزمایش شامل دو نوع سم، سه دز مصرفی از سموم مختلف (5/0، 1 و 5/1 در هزار)، سه زمان سمپاشی (ساعات 8، 12 و 16) و تعداد تکرار های سمپاشی در ماه نیز سه نوبت (دو، چهار و شش بار) در نظر گرفته شدند. داده های حاصل به روش سطح پاسخ (RSM) و با استفاده از نرم افزار آماری Design Expert 10 مورد تجزیه و تحلیل آماری قرار گرفت. نتایج این بررسی نشان داد که درصد تلفات حشرات کامل آفت هنگام استفاده از کنفیدور با اختلاف معنی داری بیش تر از پالیزین است. همچنین تنها فاکتور معنی دار در طی آزمایش نوع سم بوده و سایر فاکتور ها تغییرات معنی داری در پاسخ مورد نظر ایجاد نکردند. تفاصيل المقالة
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  2 - Application of Microorganisms Compared with Nanoparticles of Silver, Humic Acid and Gibberellic Acid on Vase Life of Cut Gerbera Goodtimming
  S. Ansari E. Hadavi M. Salehi P. Moradi
  Gerbera one of 10 important cut flowers in the world and Iran. One of the most problems is low-life after harvest and neck bending. Producers want to increase longevity of these flowers with using chemical solutions. With the aim of achieving the best chemical treatment أکثر

  Gerbera one of 10 important cut flowers in the world and Iran. One of the most problems is low-life after harvest and neck bending. Producers want to increase longevity of these flowers with using chemical solutions. With the aim of achieving the best chemical treatments to increase flower vase life gerbera Goodtimming, nano silver (5 mg l-1), humic acid (50 mg l-1), gibberellic acid (2.5 mg l-1) and Lactobacillus plantarum 110 CFU m l-1 and Lactococcus lactis110 CFU ml-1 with sucrose (4%) compared with controls. This study in carried out with 6 replications. Cut flowers recutted to 35 ± 2 cm, and then tested in different solutions for 20 days. The results showed that silver nanoparticles (5 mg l-1) +sucrose 4%+gibberellic acid 2.5 mg l-1with the 19.5 days vase life compared with controls (17.67days) had the highest durability. Distilled water+ sucrose 4% with 5.98 mm stem diameter was better than control (5.49 mm) (P £0.01), while humic acid 50 mg l-1+ sucrose 4%+gibberellic acid 2.5 mg l-1 had lowest average daily stem diameter (5.44 mm), respectively. Highest water uptake observed in silver nanoparticles 5 mg l-1+sucrose 4%+gibberellic acid 2.5 mg l-1 treatment (8.78 ml g-1 F.W.). Silver nanoparticles 5 mg l-1+sucrose 4%+gibberellic acid 2.5 mg l-1 had highest fresh weight per day (24.89 g) and dry weight (4.96 g), respectively. تفاصيل المقالة
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  3 - Impact of Arbuscular Mycorrhizal Fungi and Pseudomonas Fluorescens with Various Levels of Superphosphate on Growth Enhancement and Flowering Response of Gerbera
  Karishma Kuldeep Yadav Anju Tanwar Ashok Aggarwal
  Gerbera jamesoniiis of commercial significance and fifth most used cut flower in the world today. A pot experiment was performed to see the effect of co-inoculation of arbuscular mycorrhizal fungi (AMF) i.e. (Glomus mosseae andAcaulospora laevis) with phosphate solubili أکثر

  Gerbera jamesoniiis of commercial significance and fifth most used cut flower in the world today. A pot experiment was performed to see the effect of co-inoculation of arbuscular mycorrhizal fungi (AMF) i.e. (Glomus mosseae andAcaulospora laevis) with phosphate solubilizing bacteria Pseudomonas fluorescensin the presence of different doses of superphosphate (low, medium, high) on growth establishment and flowering response of Gerbera. Among all treatments, plants inoculated with mix culture of G. Mosseae +A. laevis+P. fluorescens showed best response in terms of greater root length, root biomass, percent root colonization, AM spore number, number of flowers, phosphorus content and phosphatase activity at lower concentration of superphosphate. Moreover, maximum increase in leaf area and shoot biomass was found in plants treated with dual combination of G. mosseae +P. fluorescens at lower concentration of superphosphate. This study provides a good scope for commercially utilizing the efficient strains of AM fungi withP. fluorescens in the establishment and growth improvement of Gerbera. تفاصيل المقالة
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  4 - The Role of Preservative Compounds on Number of Bacteria on the End of Stems and Vase Solutions of Cut Gerbera
  T. Oraee A. Asghar Zadeh M. Kiani A. Oraee
  This study was conducted to evaluate the effect of preservative solutions on vase life, number of bacteria in the end of stem and in vase solution of cut gerbera 'Double Dutch' and 'Red Explotion'. Cut flowers were pulse-treated with nano-silver (2, 4, 6, 8 or 10 mg L-1 أکثر

  This study was conducted to evaluate the effect of preservative solutions on vase life, number of bacteria in the end of stem and in vase solution of cut gerbera 'Double Dutch' and 'Red Explotion'. Cut flowers were pulse-treated with nano-silver (2, 4, 6, 8 or 10 mg L-1) and thymol (12.5, 25, 50, 75 or 100 mg L-1) +5 % sucrose. Experiment was conducted in completely randomized design with 5 replications and 1 flower in each experimental unit. Flower were harvested from a commercial greenhouse and transported to laboratory with 22±1oC temperature and 60±5% relative humidity. According to the results, these materials had positive effects on vase life of flowers.6 mg L-1 nano-silver treatments in ‘Red Explotion’ cultivar had highest longevity (14 days). All treatments were effective on decreasing of bacteria in stem end and solution. In 4 and 6 mg L-1 SNP treatments was not any bacteria in vase solutions of ‘Red Explotion’ cultivar. Resulty showed that nano-silver can be use for increasing the vase life of cut gerbera ‘Double Dutch’ and ‘Red Explotion’. تفاصيل المقالة
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  5 - Study on the Effect of Different Growing Media on the Growth and Yield of Gerbera(Gerbera jamesonii L.)
  M. A. Khalaj M. Amiri S.S. Sindhu
  To study the effect of different substrates on growth and yield of gerbera, this experiment was carried out as randomized completely block design with 14 treatments and 3 replications. Treatments were as fallowing: fine sand, peat+fine sand (25%+75%), peat+fine sand (50 أکثر

  To study the effect of different substrates on growth and yield of gerbera, this experiment was carried out as randomized completely block design with 14 treatments and 3 replications. Treatments were as fallowing: fine sand, peat+fine sand (25%+75%), peat+fine sand (50%+50%), perlite+peat (75%+25%), perlite+peat (50%+50%), perlite+peat (25% +75%), perlite+peat+expanded clay (25%+70%+5%), perlite+peat+ expanded clay (50 %+25%+25%), perlite+peat+expanded clay (25%+50%+25%), perlite+expanded clay (50%+50%), cocopeat, cocopeat+ perlite (75%+25%), cocopeat+perlite (50%+50%), coco peat+perlite+ expanded clay (50%+25%+25%), plants were fertilized with a same nutrient solution. Results showed that the growing medium containing perlite+ peat+expanded clay (25%+70%+5%) was the best treatment. In this substrate, flower number, flower diameter, shoot diameter, stem neck diameter, flower height and vase life showed significant difference among growing media. تفاصيل المقالة
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  6 - The Effect of Eucalyptus and Rosa damascena Essences with Sucrose on Vase Life and Physiological Characteristics of Cut Gerbera cv. ‘Alain Ducasse’
  Leila Khosravi Nahrabadi Nahid Rood Atoosa Danyaei Mehrdad Babarabie Mona Shadbash
  Gerbera cut flowers is one of the important and popular cut flowers in the world that regardless of increasing production of this plant in Iran, the duration of its life is short due to rapid wilting petals and bending neck of flower. To increase vase life of gerbera cu أکثر

  Gerbera cut flowers is one of the important and popular cut flowers in the world that regardless of increasing production of this plant in Iran, the duration of its life is short due to rapid wilting petals and bending neck of flower. To increase vase life of gerbera cut flowers cv. ‘Alain Ducasse’, the essences of Eucalyptus and Rosa damascena, the combination of these two essences at a concentration of 200 mg L-1 with 4% sucrose and only 4% sucrose were used as treatment and distilled water was used as control treatment. In current study, the characters of vase life, wet weight, total soluble solids, solution uptake and bent neck were examined. Maximum and minimum of vase life were achieved in Eucalyptus essence treatment (12.33 days) and control (7 days), respectively. Although, Rosa damascena essence and its combination with Eucalyptus essence also increased the vase life. The maximum fresh weight and solution uptake was obtained treated with Eucalyptus oil. The maximum fresh weight and absorption of solution were obtained in treatment with Eucalyptus essence. The maximum amount of soluble solids was obtained in the treatment of sucrose. In addition, control treatment has the maximum bent neck. The overall results showed that the use of Eucalyptus and Rosa damascena essence in combination with sucrose can be used as a preservative solution of gerbera cut flowers. تفاصيل المقالة
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  7 - Comparative Evaluation of Growth, Yield and Quality Characteristics of Various Gerbera (Gerbera jamesonii L.) Cultivars under Protected Condition
  Malik Abid Mahmood Naveed Ahmad Muhammad Saleem Akhtar Khan
  Ten gerbera cultivars (‘Labinel’, ‘Lilla’, ‘Alp’, ‘Alberino’, ‘Bonnie’, ‘Avemaria’, ‘Mammut’, ‘Lexus’, ‘‘Terramixa ’ & ‘Sarolta’) were evalu أکثر

  Ten gerbera cultivars (‘Labinel’, ‘Lilla’, ‘Alp’, ‘Alberino’, ‘Bonnie’, ‘Avemaria’, ‘Mammut’, ‘Lexus’, ‘‘Terramixa ’ & ‘Sarolta’) were evaluated for their growth, yield and quality characteristics under protected conditions during 2011. Among the cultivars studied, there were highly significant variations observed for growth, yield and quality parameters. Longest stalk length (60.3 cm) was exhibited by the cultivar ‘Alberino’ followed by ‘Lexus’ (59.0) and ‘Mammut’ (54.0 cm). The same cultivar also produced flowers with maximum diameter. With respect to vegetative parameters like number of leaves per plant and plant spread were also more in the same cultivar. Maximum number of flowers 135 per square meters was recorded in cv. ‘Avemaria’ (135) followed by ‘Alberino’ (125). Maximum vase life was recorded in cultivars ‘Alberino’ and ‘Lexus’ (6.6) followed by ‘Mammut’ (5.6) and ‘‘Sarolta’’ (5.6). Excellent quality flowers were observed in cultivar ‘Alberino’ (4.8) followed by ‘Lexus’ (4.4). Cultivar ‘Alberino’ and ‘Lexus’ were found superior with respect to growth, yield and vase-life characteristics under protected conditions. تفاصيل المقالة
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  8 - The Effect of Non-Harmful Compounds Environmentally (Eucalyptus and Rosa damascena essences) on Vase Life and Some Physiological Characteristics of Gerbera Cut Flowers
  Leila Khosravi Nahid Rood Atoosa Danyaei Mehrdad Babarabie
  10.22034/jchr.2016.544143
  In this study, Gerbera (Cv. alain ducasse) cut flowers were treated with essences of Eucalyptus and Rosa damascena at a concentration of 200 mg l-1 and their effects on the vase life of flowers and some qualitative characteristics were evaluated. This research was a com أکثر

  In this study, Gerbera (Cv. alain ducasse) cut flowers were treated with essences of Eucalyptus and Rosa damascena at a concentration of 200 mg l-1 and their effects on the vase life of flowers and some qualitative characteristics were evaluated. This research was a completely randomized design with factorial arrangement. Maximum vase life was obtained for flowers treated with the Eucalyptus essence (10 days) and the lowest vase life was related to the control (7 days). The maximum fresh weight, solution uptake, bent neck reduction were related to the Eucalyptus treatment and the maximum stem diameter was obtained with the R. damascena essence treatment. In addition, the total soluble solids in the treatment with herbal essences were increased compared to the control; however, no significant difference between them was observed. Overall, for increasing the vase life and qualitative characteristics of Gerbera cut flowers, eucalyptus and R. damascena essences can be used in the vase solution. Treatments used in this experiment, as accessible compounds are healthy and non-hazardous for the environment, appropriate to increase the vase life of Gerbera cut flowers. تفاصيل المقالة
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  9 - اثر محلول‎پاشی مقادیر و منابع مختلف پتاسیم بر عملکرد و خصوصیات کمی و کیفی گل ژربرا رقم استانزا (Gerbera jamesonii cv. Stanza)
  شراره مرتضایی‎فرد سپیده کلاته جاری مجید بصیرت
  این پژوهش به منظور بررسی تأثیرمحلول پاشی نمک‌های مختلف پتاسیمی شامل سیلیکات پتاسیم، نیترات پتاسیم و سولفات پتاسیم در مقادیر صفر، 5/1 و 3 گرم بر لیتر پتاسیم (k) بر عملکرد و کیفیت گل شاخه بریدنی ژربرا رقم استانزا انجام گرفت. پژوهش در سال 1387 در منطقه پاکدشت ورامین اجرا گ أکثر

  این پژوهش به منظور بررسی تأثیرمحلول پاشی نمک‌های مختلف پتاسیمی شامل سیلیکات پتاسیم، نیترات پتاسیم و سولفات پتاسیم در مقادیر صفر، 5/1 و 3 گرم بر لیتر پتاسیم (k) بر عملکرد و کیفیت گل شاخه بریدنی ژربرا رقم استانزا انجام گرفت. پژوهش در سال 1387 در منطقه پاکدشت ورامین اجرا گردید. طرح آزمایشی، طرح کاملاً تصادفی با پنج تکرار در نظر گرفته شد که هر تکرار شامل چهار گلدان بود. نتایج تجزیه آماری نشان داد که عملکرد بوته‌ها تحت تأثیر تیمارهای کودی قرار گرفت و تمام تیمارهای پتاسیمی باعث افزایش معنی‌دار عملکرد در سطح احتمال 1% شدند ولی اثر تیمار نیترات پتاسیم بیشتر از سایر تیمارها بود. تیمارهای نیترات پتاسیم و سیلیکات پتاسیم در غلظت 3 گرم در لیتر در مقایسه با سایر تیمارها و شاهد باعث افزایش معنی‌داری در سطح احتمال 1% در قطر گل و قطر ساقه گل دهنده شدند. نمک‎های مختلف پتاسیم باعث افزایش در شدت سبزی برگ در کلیه تیمارها نسبت به شاهد در سطح احتمال 5% شدند. اندازه گیری میزان پتاسیم برگ نشان داد که در کلیه تیمارهای مورد آزمایش با افزایش پتاسیم، غلظت پتاسیم برگ نیز افزایش یافت. با افزایش غلظت پتاسیم برگ، کاهش معنی داری در غلظت کلسیم و منیزیم برگ مشاهده گردید و هیچ اثر منفی بر کیفیت گل با وجود افزایش پتاسیم مشاهده نشد. مقایسات میانگین براساس آزمون چند دامنه ای دانکن صورت گرفت. از نتایج به‎دست آمده چنین استنباط می‌گردد که برای به‎دست آوردن بیشترین تعداد گل و گل‌هایی با کیفیت بهتر در بوته، محلول پاشی تیمارهای نیترات پتاسیم و سیلیکات پتاسیم با غلظت سه گرم بر لیتر صورت گیرد. تفاصيل المقالة