تأثیر اسل، ساکارز و اسانس آویشن باغی (Thymus vulgaris) بر ماندگاری و کیفیت پس از برداشت گل‌ شاخه بریدنی مریم (Polianthes tuberosa L.)

نوع مقاله: مقاله کامل

نویسندگان

1 دانشجوی سابق کارشناسی ارشد، دانشکدۀ علوم کشاورزی، دانشگاه گیلان

2 استاد، دانشکدۀ علوم کشاورزی، دانشگاه گیلان

3 استادیار، دانشکدۀ علوم کشاورزی، دانشگاه گیلان

چکیده

در این پژوهش که باهدف بهبود کیفیت و افزایش ماندگاری پس از برداشت گل شاخه بریدنی مریم رقم دابل انجام گرفت، تیمارهای موردآزمایش شامل آب مقطر به­عنوان تیمار شاهد، اتانول 3درصد، ساکارز 5 درصد، اسانس آویشن باغی در سه سطح 50، 75 و 100 میلی­گرم در لیتر، اسل در سه سطح 25، 50 و 75 میلی­گرم در لیتر و برای شماری از شاخه­های گل نیز تیمار ضربانی با ساکارز 5درصد در 24 ساعت اول و قرار دادن شاخه­های گل­ تیمارشده با ساکارز در سه غلظت یادشدۀ اسانس آویشن باغی و اسل، در 24 ساعت دوم بودند. نتایج مقایسۀ میانگین­ها نشان داد تیمار گل­ها با غلظت­های 25، 50 و 75 میلی­گرم در لیتر اسل، بیشترین تأثیر را در به تأخیر انداختن پیری گل­ها به ترتیب به مدت 33/7، 67/6 و 67/5 روز داشتند. در غلظت­های 75، 100 و 50 میلی­گرم در لیتر اسانس آویشن باغی نیز ماندگاری به ترتیب 33/4، 67/3 و 33/3 روز افزایش یافت. در این تیمارها وزن­تر نسبی، جذب آب، میزان مواد جامد محلول، پروتئین و سبزینه (کلروفیل) نسبت به دیگر تیمارها بیشتر بود. میزان پراکسیداسیون لیپیدها و فعالیت آنزیم­های کاتالاز و پراکسیداز در طی دورۀ پس از برداشت در گل­های تیمارشده با غلظت­های 25، 50 و 75 میلی­گرم در لیتر اسل و غلظت­های 75، 100 و 50 میلی­گرم در لیتر اسانس آویشن باغی نسبت به دیگر تیمارها کمتر بود. اسل و اسانس آویشن باغی به همراه ساکارز نیز سبب افزایش ماندگاری گل­های شاخه بریدنی مریم رقم دابل شدند.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Effect of accel, sucrose and thyme oil on vase life and postharvest quality of tuberose (Polianthes tuberosa L.) cut flower

نویسندگان [English]

  • Nafiseh Borji 1
  • Moazam Hassanpour Asil 2
  • Atefeh Sabouri 3
چکیده [English]

The aim of this research was to improve postharvest quality and vase life of tuberose cut flowers. Treatments in this experiment included: distilled water, 3% ethanol and 5% sucrose as control, thyme oil in 3 levels (50, 75 and 100 mg/l), accel in 3 level (25, 50 and 75 mg/l) and for some of flowers pulsing with 5% sucrose in first 24 hours then puting cut flowers treated with sucrose in thyme oil and accel with the same concentrations in second 24 hours. Experiment was carried out in completely randomized design with three replications. Some traits were measured in multiple times, as split plot in completely randomized design. Results showed that vase life of flowers treated with 25, 50 and 75 mg/l accel, increased up to 7.33, 6.67 and 5.67 days, respectively. Concentrations of 75, 100 and 50 mg/l of thyme oil increased vase life up to 4.33, 3.67 and 3.33 days, respectively. In above mentioned treatments, relative fresh weight, water uptake, TSS, protein and chlorophyll content were higher than controls. Lipid peroxidation, peroxidase and catalase activity during postharvest period in the cut flowers that were treated with 25, 50 and 75 mg/l accel and 75, 100 and 50 mg/l thyme oil, were lower than other treatments. Efficacy of accel and thyme oil accompanied with sucrose were increased, resulted in higher longevity of flowers and better quality maintenance of polianthes tuberosa cv. Double.

کلیدواژه‌ها [English]

  • BA
  • Essential oil
  • floret opening
  • MDA
  • pod
  • Polianthes tuberosa
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