List of Articles پیت‌ماس

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  1 - The effect of two environment water - moss and peat moss soil on the number of cocoons, the weight of the cocoon and the number of casualties of oriental leech (Hirudo orientalis).
  Hamidreza Bidmal mohammad Sodagar
  Background: In recent years, leeches have been used to treat some diseases, extract many enzymes and substances that are effective in treating diseases.This study aims to influence the two environments of water-moss and peat moss soil on the number of cocoons, the weigh More

  Background: In recent years, leeches have been used to treat some diseases, extract many enzymes and substances that are effective in treating diseases.This study aims to influence the two environments of water-moss and peat moss soil on the number of cocoons, the weight of the cocoons and the losses in the oriental leech. Method: For this purpose, 300 productive leeches for 45 days in 6 treatments and 3 repetitions per treatment: treatment (1) 10 leeches in water-moss, treatment (2) 15 leeches, treatment (3) 25 pieces Leeches, treatment (4) 10 pieces of leeches in Peat mosss, treatment (5) 15 pieces of leeches, treatment (6) 25 pieces of leeches. Reproductive leeches were kept in a water-moss environment in tanks containing 50 liters of chlorine-free water at 28-27°c. The mosses were controlled and sprayed twice a week, and the cocoons inside the mosses were collected and stored at 25°c. Productive leeches were kept in a 10-liter plastic container in the soil of Peat mosss. The peat moss soil was inspected 3 times a week and sprayed to retain moisture, and cocoons were collected inside the moss soil and stored at 25 °c in the peat moss soil. Results: The results showed that the number of cocoons produced in water-moss and paet moss soil did not differ significantly (p <0.05). The weight of the cocoons produced in the two environments did not differ significantly (p <0.05). Also, the number of casualties of productive leeches in the two environments showed no significant cifference (p <0.05). Manuscript profile
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  2 - Investigation of antioxidant activity, total phenol and flavonoid content of lemon balm (Melissa officinalis L.) in different media under hydroponic condition
  elham farrokhi abbas samadi amir rahimi
  Hydroponic culture has several advantages such as higher yield, product uniformity improvement, and better control of elements absorption than soil condition. The hydroponic is a method which organic or inorganic substrates are used for plant cultivation. In order to in More

  Hydroponic culture has several advantages such as higher yield, product uniformity improvement, and better control of elements absorption than soil condition. The hydroponic is a method which organic or inorganic substrates are used for plant cultivation. In order to investigate the effect of different growing media on antioxidant properties of lemon balm (Melissa officinalis), an experiment was done based on completely randomized design using 11 treatments with three replications at Experimental Greenhouse of Urmia University. Growing media tested were: perlite substrate with grads: <0.5, 0.5-1 ,1-1.5 ,1.5-2 and >2 mm as 100% and mixed grades of perlite with peat moss (50:50) and pure peat moss (100% V). The total phenolic content, total flavonoid, and antioxidant activity were measured by using folin ciocalteu reagent, aluminum chloride, and 2, 2-diphenyl-1-picrylhydrazyl (DPPH) methods respectively. The results showed that significant differences were observed the measured parameters in inorganic (perlite with different sizes), organic (peat most), and mixture of organic and inorganic substrates. The highest content of total phenol (0.63mg GAA/100g), total flavonoid (0.07 mg Q/100g), total anthocyanin (1.7 mg/gdw), superoxide radical scavenging activity (55.3%) and radical scavenging activity DPPH (67.8%) were observed in pure peat moss medium, while the lowest nitric oxide radical scavenging activity (67%) was in peat moss medium. In conclusion different culture media which possess different physical and chemical characteristics, can affect the plant antioxidant properties. According to the results, peat moss substrate increased the antioxidant properties of lemon balm compared to other culture media Manuscript profile
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  3 - تاثیر غلظت های مختلف نیتروژن و ترکیب بستر کشت بر رشد و کیفیت بنت قنسول رقم ’نوئل رد‘
  سمیه کاتبی پرویز نوروزی جواد رضاپور فرد
  بنت­­ قنسول(Euphorbia pulcherrima) گیاهی گلدانی است که براکته‌های رنگین آن در روزهای کوتاه تشکیل می­شود. در این تحقیق اثر غلظت­های مختلف نیتروژن (180، 230، 280 و330 میلی‌گرم بر لیتر) و بسترهای کشت (پیت ماس و پرلیت به نسبت 1:2 و کوکوپیت و پرلیت به نسبت 1: More

  بنت­­ قنسول(Euphorbia pulcherrima) گیاهی گلدانی است که براکته‌های رنگین آن در روزهای کوتاه تشکیل می­شود. در این تحقیق اثر غلظت­های مختلف نیتروژن (180، 230، 280 و330 میلی‌گرم بر لیتر) و بسترهای کشت (پیت ماس و پرلیت به نسبت 1:2 و کوکوپیت و پرلیت به نسبت 1:2) بر برخی صفات گیاه بنت قنسول رقم ’نوئل‌رد‘ مطالعه شد. این آزمایش به­صورت فاکتوریل در قالب طرح کاملا تصادفی با 8 تیمار و 3 تکرار اجرا گردید. نتایج حاصل از بررسی صفات اندازه‌گیری شده نشان داد که بیشترین میزان ارتفاع، قطر تاج بوته و میزان نیتروژن در غلظت 230 پی‌پی‌ام و بستر کوکوپیت + پرلیت ایجاد شدند. غلظت 230 میلی‌گرم بر لیتر نیتروژن سبب افزایش میزان وزن تر ساقه و ریشه نسبت به سایر تیمارها شد. غلظت 280 میلی‌گرم بر لیتر نیتروژن و کوکوپیت + پرلیت باعث بیشترین مقدار وزن خشک ساقه شد. تیمار پیت‌ماس + پرلیت و330 میلی‌گرم بر لیتر نیتروژن باعث ایجاد حداکثر مقدار میزان کلروفیل a و آنتوسیانین براکته شد. براساس نتایج پژوهش حاضر غلظت 230 و 280 میلی‌گرم بر لیتر نیتروژن و بستر کوکوپیت موجب بهبود شاخص­های رشدی و در نتیجه بهبود خصوصیات کیفی بنت قنسول شده است. Manuscript profile