بررسی اثر نانوسیلور، نانوسیل و پراکسید هیدروژن بر عمر پس از برداشت گل بریده رز (Rosa hybrida)
Subject Areas : Journal of Ornamental Plantsمونا شادباش 1 , فتح اله کشاورزشال 2
1 - Department of Horticulture, Rasht Branch, Islamic Azad University, Rasht, Iran
2 - Guilan Agricultural and Natural Resources Research and Education Center
Keywords: ترکیبات ضد میکروبی, انسداد آوندی, تیمار ممتد, محلول گلجایی,
Abstract :
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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