بررسی اثر تنظیم کنندههای رشد گیاهی بر صفات مورفولوژیکی و اسانس گل نرگس (Narcissus tazetta L.)
محورهای موضوعی : بوم شناسی گیاهان زراعیفاطمه نخعی 1 , احمد خلیلی 2 , محمد علی ناصری 3 , پرویز آبرومند 4
1 - استادیار دانشگاه آزاد اسلامی واحد بیرجند.
2 - استاد دانشگاه آزاد اسلامی واحد علوم تحقیقات تهران.ایران.
3 - استادیار گروه شیمی. دانشگاه بیرجند. ایران.
4 - استادیار دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران. تهران. ایران.
کلید واژه: اسانس, تعداد گل, طول ساقه, قطر گل, نرگس, تنظیم&lrm, کننده رشد گیاهی, صفات مورفولوژیکی,
چکیده مقاله :
گل نرگس (Narcissus tazetta L.) نه تنها بهعنوان گل بریده و گیاه زینتی شناخته میشود، بلکه ارزش بالایی در صنعت عطر سازی دارد. در این آزمایش تأثیر چهار نوع تنظیمکننده رشد گیاهی شامل اسیدجیبرلیک (100 پی پی ام) ، بنزیلآدنین (500 پی پی ام)، اسید ایندول بوتیریک (200 پی پی ام) و سایکوسل (800 پی پی ام ) رویصفاتمورفولوژیکیو اسانس نرگس مورد بررسی قرار گرفت. تنظیم کنندههای رشد در دو مرحله مجزا روی پیازها و بخشهای هوایی در مرحله ظهور گل آذین محلول پاشی شدند. اسانس گلهای تازه باز شده نرگس با استفاده از روش استخراج حلال بهدست آمد. نتایج نشان داد که تیمارهای اسیدجیبرلیک و بنزیلآدنین سبب افزایش معنیدار طول ساقه گل دهنده، قطر گل، تعداد گل در گل آذین و سبب تسریع در گلدهی گردیدند. اسید ایندول بوتیریک نیز طول ساقه گل دهنده را افزایش داد، اما سایکوسل سبب کاهش معنیدار طول ساقه گل دهنده شدند. تیمارهای بنزیلآدنین و اسید ایندول بوتیریک سبب افزایش معنیدار مقدار اسانس شدند. سایکوسل تأثیری در میزان اسانس نداشت، اما جیبرلین سبب کاهش معنیدار مقدار اسانس گردید.
Daffodil (Narcissus tazetta) not only is known as a cut flower and ornamental plant, but also has high advantages in perfume industry. Effect of four kinds of plant growth regulators including gibberelic acid (GA3) 100 ppm, banzyladenine (BA) 500 ppm, indole butyric acid (IBA) 200 ppm and Cycocel CCC 800 ppm) onmorphological traits and essential oil of daffodil were investigated. Plant growth regulators were sprayed at two stages including bulbs and foliage parts atinflorescence. The essential oil of fresh flowers was extacted using solvent extraction method. The results showed that GA3 and BA treatments had significant effects on increasing stem length, flower diameter and number of flowers in each inflorescence and also accelerated flowering. IBA application elongated flowering stem length but CCC decreased stem length. BA and IBA applications caused significant increase in essential oil, CCC had no effect on that, but GA3 decreased its quantity.
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