غربالگری عمر گلجایی و صفات بیوشیمیایی هشت رقم گل شاخه بریده آلسترومریا

Subject Areas : Journal of Ornamental Plants

سحر نقی لو ¹ , علی سلیمانی ² , ولی ربیعی ³ , احمد خلیقی ⁴ , محمدطاهر هرکی نژاد ⁵

1 - گروه علوم باغبانی، واحد علوم و تحقیقات، دانشگاه آزاد اسلامی، تهران، ایران
2 - گروه علوم باغبانی، دانشکده کشاورزی، دانشگاه زنجان، زنجان، ایران
3 - گروه علوم باغبانی، دانشکده کشاورزی، دانشگاه زنجان، زنجان، ایران
4 - گروه علوم باغبانی، دانشکده کشاورزی، واحد علوم و تحقیقات، دانشگاه آزاد اسلامی، تهران، ایران
5 - گروه علوم دامی، دانشکده کشاورزی، دانشگاه زنجان، زنجان، ایران

Received: 2019-12-28 Accepted : 2020-04-23 Published : 2020-06-01

Keywords: غربالگری, کاتالاز, عمر گلجایی, پراکسیداز, آلسترومریا,

Abstract :

   گل آلسترومریا  به­دلیل طول عمر و طیف گسترده­ای از رنگ­ها به یکی از محبوبترین گل­­ها در اروپا تبدیل شده است. با این وجود پژمردگی زودرس و ریزش گلچه­ها حتی قبل از باز شدم آن­ها عمر گلجایی آن را کاهش می­دهد. به همین دلیل آزمایشی با هدف بررسی صفات بیوشیمیایی و مورفولوژیکی گل­های آلسترومریا به­منظور غربالگری هشت رقم Topaz, Chicago, Mayfair, Onyx, Frosty, Bellevue, Samanthaو Dimension  ازگل­های شاخه بریده آلسترومریا انجام شد. در طول اجرای آزمایش صفاتی چون عمر گلجایی، پژمردگی، جذب آب، میزان کلروفیل، درصد مواد جامد محلول، محتوای آب نسبی، فعالیت کاتالاز، فعالیت پراکسیداز و پروتئین مورد بررسی قرار گرفت. داده­ها با روش کلاستر مورد تجزیه و تحلیل قرار گرفتند. نتایج حاصل مشخص نمود که رقم Frosty و  Mayfairاز نظر صفات بیوشیمیایی و مورفولوژیکی بیشترین اختلاف را با یکدیگر داشتند. اما Frosty  متفاوت­ترین رقم از سایر ارقام بود به گونه­ای که در تجزیه کلاستر در گروه جداگانه قرار گرفت. در نتیجه، دو رقم با طولانی­ترین و کوتاه­ترین طول عمر مشخص شد. همچنین بیشترین فعالیت آنزیم پراکسیداز مربوط به رقم Frosty بود و با رقم Mayfair تفاوت معنی­داری داشت.

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