استفاده از گلیسین، تیوفول و سالیسیلیک اسید در چغندرقند (Beta vulgaris L) تحت شرایط کم آبیاری

محورهای موضوعی : اکوفیزیولوژی گیاهان زراعی

محمد خیرخواه ¹ (عضو هیئت علمی گروه کشاورزی، مجتمع آموزش عالی شیروان، شیروان، ایران)
محمد فرازی ² (دانش آموخته ی کارشناسی ارشد زراعت، مجتمع آموزش عالی شیروان، شیروان، ایران)
علیرضا دادخواه ³ (عضو هیئت علمی گروه کشاورزی، مجتمع آموزش عالی شیروان، شیروان، ایران)
اصغر خشنود یزدی ⁴ (عضو هیئت علمی گروه کشاورزی، مجتمع آموزش عالی شیروان، شیروان، ایران)

تاریخ دریافت : 1394/01/25 تاریخ پذیرش : 1394/11/27 تاریخ انتشار : 1395/01/01

کلید واژه: تنش خشکی, چغندرقند, سالیسیلیک اسید, تیوفول, گلیسین,

چکیده مقاله :

به منظور بررسی تاثیر مواد ضد تنش (گلیسین، تیوفول و اسید سالیسیلیک) بر عملکرد کمّی وکیفی چغندرقند در شرایط تنش خشکی پس از سبز شدن، آزمایشی در قالب طرح بلوک های کامل تصادفی با 3 تکرار انجام شد. تیمارهای مورد مطالعه شامل تیمار شاهد (بدون مصرف مواد ضد تنش)، اسید سالیسیلیک با سه غلظت (0.1 -0.5 و 1 میلی مولار)، تیوفول در سه غلظت (0.5، 1 و 1.5 لیتر در هزار) و گلیسین با سه غلظت (1، 2 و 3 لیتر در هزار) بودند. نتایج به دست آمده نشان داد اثرات مواد ضد تنش بر عیار قند، عملکرد ریشه، عملکرد شکر قابل استحصال و نیتروژن مضره در سطح یک درصد و شکر قابل استحصال و ضریب آلکالیته در سطح پنج درصد معنی دار بودند. بیشترین میزان عیار قند (15.65%)، عملکرد ریشه (82.83 تن در هکتار) و شکر قابل استحصال (11.15%) از تیمار تیوفول 1.5 لیتر در هزار حاصل شد. در حالی که کمترین میزان این صفات از تیمار شاهد (بدون محلول پاشی مواد ضد تنش) به دست آمد و حداکثر نیتروژن مضره در تیمار شاهد با 4.38 و حداکثر ضریب قلیائیت با 3.49 در تیمار گلیسین سه در هزار مشاهده شدند که نشان دهنده اثرات مثبت استفاده مواد ضد تنش در چغندرقند در شرایط تنش خشکی می باشند.

چکیده انگلیسی:

Sugar beet is one of strategic products to supply sugar in water limited areas of Iran. Thus, proper managements to supply enouph water in production of sugar beet is very important. To evaluate the effects of some anti stress substances like salicylic acid, tyuful and glycine to irritigate the effect of early water deficit on suger beet, an experiment based on randomized complete block design with three replications was carried out at the Research Farm of Fariman Sugar Factory in 2013. Treatments consisted of control (without using anti stress substances), with three concentration of salicylic acid (0.1, 0.5, and 1 mM), tyuful with three concentration (0.5, 1 and 1.5 liter per thousand) and glycine with three concentration (1, 2 and 3 liters per thousand). The results showed that the effects of anti-stress materials significantly affected the sugar content, root yield, white sugar yield and harmful nitrogen. Highest sugar content (15.65%), root yield (83.82 t.ha-1) and white sugar percentage (11.15%) were obtained by using tyuful 1.5 lit/1000. While, the lowest levels of these characters were obtained from control (not using anti stress substances). Maximum harmful nitrogen was produced in control treatment (4.38) and highest level of alkalinity with mean of 3.49 was observed by using 3 lit/1000 of glycine. Our results showed that all of the anti stress substances had positive effects on sugar beet under drought stress condition.

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