بررسی تأثیر اتفن و حلقه‌برداری بر ویژگی‌های کمی و کیفی میوۀ انگور رقم ریش‌بابا قرمز

نوع مقاله: مقاله کامل

نویسندگان

1 دانشیار پژوهشی، بخش تحقیقات باغبانی، مرکز تحقیقات کشاورزی و منابع طبیعی آذربایجان غربی، سازمان تحقیقات، آموزش و ترویج کشاورزی، ارومیه، ایران

2 دانشجوی سابق کارشناسی ارشد، دانشکده کشاورزی، دانشگاه ارومیه

3 استاد، دانشکده کشاورزی، دانشگاه ارومیه

چکیده

یکی از عامل‌های مهم تعیین‌کنندۀ کیفیت و بازارپسندی انگور رنگ حبۀ آن است. عامل‌های چندی بر رنگ­گیری حبه تأثیر دارند. به‌منظور بررسی تأثیر حلقه­برداری شاخه­های سال جاری و محلول­پاشی اتفن با غلظت­های 150 و 300 میلی­گرم در لیتر در مرحلۀ تغییر رنگ حبه­ها بر رنگ­گیری و کمیت و کیفیت میوۀ­ انگور ریش‌بابا قرمز این پژوهش به‌صورت آزمایش فاکتوریل در قالب طرح بلوک­های کامل تصادفی با سه تکرار در شرایط آب هوایی ارومیه در تاک­های 25 ساله با تربیت کوردون دوسویه اجرا شد. در هنگام برداشت صفات کمی و کیفی میزان قند، اسید میوه، وزن حبه و خوشه، سفتی و ریزش حبه، میزان فنول کل، مواد پاداکسندگی (آنتی­اکسیدانی) و ویژگی‌های رنگ حبه اندازه­گیری شدند. حلقه­برداری و اتفن باعث بهبود میزان قند و کاهش اسید میوه شدند. وزن حبه­ها و خوشه­ها در تاک­های حلقه­برداری‌شده افزایش نشان داد، اما اتفن تأثیری نداشت. ریزش حبه در تاک­های حلقه­برداری‌شده کمتر از شاهد بود ولی اتفن باعث تشدید ریزش و کاهش میزان سفتی بافت حبه شد. هر دو تیمار باعث افزایش تولید مواد فنولی و پاداکسندگی میوه­ شدند. بیشترین میزان فنل در تاک­های حلقه­برداری‌شده و اتفن در زمان تغییر رنگ حبه­ها بود. حلقه­برداری تاک­ها در آغاز تغییر رنگ حبه­ها به همراه کاربرد اتفن باعث بهبود رنگ­گیری و قرمزتر شدن حبه­ها شدند.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Effect of ethephon and girdling treatments on quantity and quality characteristics of Vitis vinifera L. cv. Rishbaba Qermez

نویسندگان [English]

  • Hamed Doulati Baneh 1
  • Reza Zarei 2
  • Mohsen Esmaiili 3
1 Associate Professor, Horticulture Crops Research Department, West Azerbaijan Agricultural and Natural Resources Research and Education Center, AREEO, Urmia, Iran
2 Former M. Sc. Student, Faculty of Agriculture, Urmia University, Urmia, Iran
3 Professor, Faculty of Agriculture, Urmia University, Urmia, Iran
چکیده [English]

Berry skin color is one of the most important characteristics of grapes that determine quality of red and black grape cultivars. It has been shown that the anthocyanin accumulation is influenced by many factors. To study the effect of girdling and ethephon (0, 150 and 300 mg/L) treatments in veraison stage on berry coloring and quantity and quality attributes of 'Rishbaba Qermez' cultivar this research was conducted as Factorial experiment based on RCBD in Urmia region on 25 years bi lateral trained vines. At harvest time the total soluble solids (TSS), titrable acidity (TA), pH, berry and bunch weight, berry firmness and shatter, amount of total phenol and antioxidant and skin berry color were evaluated. Both girdling and ethephon improved amount of TSS but reduced the TA. Berry and bunch weight was increased in girdling vine whereas ethephon didn’t have significant effect on them. At harvest time, the shatter rate in girdled vine was less than control but ethephon treatments increased shatter and reduced the berry flash firmness. Both treatments increased the amount of phenol and antioxidant composition in berry. The highest amount of total phenol was recorded in vines that treated with girdling and ethephon at veraison stage. Red berry skin color was improved by applying ethephon and girdling in veraison stage.

کلیدواژه‌ها [English]

  • Anthocyanin
  • berry color
  • Phenol
  • TSS
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