The Effects of Nanosilver, Nanosil and Hydrogen Peroxide on Vase Life Cut Rose (Rosa hybrida) ‘Grand Press Angela’
محورهای موضوعی : مجله گیاهان زینتی
Mona Shadbash
1
(Department of Horticulture, Rasht Branch, Islamic Azad University, Rasht, Iran)
Fathollah Keshavarzshal
2
(Guilan Agricultural and Natural Resources Research and Education Center)
کلید واژه: Vase solution, Antimicrobial solutions, Prolonged treatment, Vascular obstruction,
چکیده مقاله :
To evaluate the effect of nanosilver (5, 10 and 20 mg l-1), hydrogen peroxide (200, 400 and 600 µM) and Nanosil(200, 400 and 600 µM) as antimicrobial compounds in vase solution of cut rose cv. ‘Grand Press Angela’ flowers, an experiment with 10 treatments and 3 replications was conducted in a completely randomized design. Cut rose flowers were continuously treated with these compounds. The results indicated a significant and positive impact of Nanosil on the measured traits. The highest vase life (13.16 days), maximum solution uptake (0.943 ml g-1 F.W.), the lowest fresh weight loss (6.31 g), the lowest bacterial population in stem end (87.67 Log10 CFU ml-1) and the highest petals carotenoid (17.61 µg g-1 F.W.) were related to the 400 µM Nanosil treatment. Most POD enzyme activities were recorded for the treatment of nanosilver 5 mg l-1 (3.94 nmol g-1 F.W.) and 400 µM Nanosil (3.86 nmol g-1 F.W.). Different concentrations of nanosilver were not successful in keeping vase life and its related traits because of the continuous use of these compounds. Different concentrations of hydrogen peroxide of evaluated characteristics were superior to the control. Overall, treatment with 400 µM Nanosil is recommended as an effective treatment for long-term preservation of cut flowers of roses as it was the best treatment and also had the longest vase life.
به منظور بررسی اثر نانوسیلور (5، 10 و 20 میلی­گرم در لیتر)، پراکسید هیدروژن (200، 400 و 600 میکرو مولار) و نانوسیل (200 ، 400 و 600 میکرو مولار) به عنوان ترکیبات ضدمیکروبی در محلول گلجایی گل بریده رز رقم "گراند پرس آنجلا"، آزمایشی با 10 تیمار و 3 تکرار در قالب طرح کاملا تصادفی انجام شد. گل­های بریده رز بصورت ممتد با این ترکیبات تیمار شدند. نتایج بیانگر تاثیر معنی­دار و مثبت نانوسیل بر صفات اندازه­گیری شده بود. بطوریکه بیشترین عمر گلجایی (16/13 روز)، بیشترین جذب محلول (943/0 میلی­لیتر در هر گرم وزن تر)، کمترین کاهش وزن تر (31/6 گرم)، کمترین باکتری ته ساقه (Log 10 CFU ml-1 67/87) و بیشترین کاروتنوئید گلبرگ (61/17 میکروگرم در هر گرم وزن تر) متعلق به تیمار 400 میکرومولار نانوسیل بود. بیشترین فعالیت آنزیم POD برای دو تیمار 5 میلی گرم در­لیتر نانوسیلور (94/3 نانومول در هر گرم وزن تر) و 400 میکرومولار نانوسیل (86/3 نانومول در هر گرم وزن تر) ثبت شد. غلظت­های مختلف نانوسیلور در حفظ عمرگلجایی و صفات وابسته به آن موفق نبودند که دلیل آن می­تواند استفاده ممتد از این ترکیبات باشد. غلظت­های مختلف پراکسیدهیدروژن نسبت به شاهد در صفات مورد ارزیابی برتر بودند. بطورکلی تیمار 400 میکرومولار نانوسیل به دلیل اینکه در تمامی صفات ارزیابی شده، جزو بهترین تیمارها بود و همچنین بیشترین عمر گلجایی را داشت، به­عنوان تیمار مناسبی جهت نگهداری طولانی مدت گل بریده رز توصیه می­شود.
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