تاثیر تراکم بوته بر تجمع ماده خشک، شاخص کلروفیل و مقدار اینولین ریشه در دو رقم شیکوره ویتلوف

نوع مقاله : مقاله پژوهشی

نویسندگان

1 گروه علوم باغبانی، دانشکده کشاورزی، دانشگاه تبریز

2 فیزیولوژی گیاهان زراعی، دانشکده کشاورزی، دانشگاه تبریز

چکیده

شیکوره با نام علمی Cichorium intybus L. گیاهی چند ساله از خانواده‌ی آستراسه است. ریشه‌های این گیاه علاوه بر تولید شیکون به عنوان سبزی ارزشمند از طریق فورسه کردن ریشه‌ها در محیط تاریک، مهمترین منبع مورد استفاده جهت استخراج اینولین و الیگوفروکتوزها است. با توجه به این که کشت و کار این گیاه در ایران رایج نشده و نظر به اینکه یکی از مهمترین مسائل برای ترویج کاشت یک محصول جدید تعیین تراکم کاشت و نوع رقم می باشد.
مواد و روش‌ها :طی این آزمایش تاثیر 4 تراکم بوته (تراکم 50، 25، 17 و 12 بوته در مترمربع) و دو رقم شیکوه ویتلوف (پاگنا و یلواستار ) به صورت آزمایش مزرعه‌ای در ایستگاه تحقیقات کشاورزی خلعت پوشان، دانشکده کشاورزی، دانشگاه تبریز در سال 1398 و در قالب طرح پایه بلوک‌های کامل تصادفی با 3 تکرار مورد ارزیابی قرار گرفت. در طول دوره رشد گیاه، میزان کلروفیل برگها اندازه‌گیری شد. پس از برداشت ریشه‌ها عملکرد ریشه‌ها به صورت نمونه‌برداری از 5/1 متر طولی ردیف گزارش شد. پس از برداشت صفاتی نظیر وزن خشک بخش هوایی و ریشه، نسبت ریشه به برگ و نیز میزان اینولین ریشه‌ها به روش رنگ سنجی اندازه‌گیری شدند.

کلیدواژه‌ها


عنوان مقاله [English]

Effect of planting density on dry matter accumulation ,chlorophyll index and inulin content in two cultivars of witlof chicory

نویسندگان [English]

  • jaber panahandeh 1
  • Javid Emaratpardaz 2
  • shahla abdollahi 1
2 -Faculty of Agriculture, University of Tabriz, Iran
چکیده [English]

Background and Objective: Chicory (Cichorium intybus L.) is perennial plants belong to the Asteraceae family. Chicory root can be forced in the dark for producing chicon as a vegetable crop. Also chicory roots have been reported to be the most abundant source of inulin and other oligofructoses.
Materials and Methods: in this experiment the effect of two factors including four plant densities (12, 17, 25 and 50 plants/ m2) and two cultivars (Pagana, Yellow star) with three replications were evaluated based on the randomised complete block design. The experiment was conducted during 2018 in Khalat Pushan Agricultural Research Station (KPARS), University of Tabriz. In the growth period the chlorophyll index were assessed. After harvest the root yield recorded based on the yield of mean row with length of 1.5 m in each plot. in addition to root yield the foliage and root dry weight, root: foliage ratio and inulin content of roots via the colorimetric methods were assessed.
Results: the yellow star cultivar had the higher chlorophyll index and also roots: leaf ratio than Pagana. while about leaf and root dry weight yields, there were no significant differences between two cultivars. Results showed that plant density and cultivar had not any significant effect on inulin content in chicory roots.

کلیدواژه‌ها [English]

  • Inulin . root : leaf ratio
  • plant density
  • chlorophyll index
  • colorimetry
  • witlof chicory
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