بررسی صفات کیفی زردآلو رقم شاهرودی (Prunus armeniaca cv Shahroudi) در طی مراحل مختلف برداشت‌

نوع مقاله: پژوهشی

نویسندگان

1 گروه علوم باغبانی، دانشکده کشاورزی، دانشگاه تبریز، تبریز، ایران

2 گروه زیست شناسی، دانشکده علوم طبیعی، دانشگاه تبریز، تبریز، ایران

چکیده

امروزه توجه زیادی به کیفیت میوه‌ها از جمله میوه‌های هسته‌دار با توجه به عمر پس از برداشت کوتاه آنها می‌شود. هدف از این پژوهش ارزیابی بعضی از صفات کیفی در طی مراحل پایانی رشد و تعیین زمان مناسبت برداشت زردآلو رقم شاهرودی با توجه به زمان و بازار مصرف بود. میوه‌های زردآلو در فاصله 3 زمان مختلف، (فاصله هر برداشت از برداشت دیگر سه روز بود) برداشت شدند. آزمایش بر طرح بلوک‌های کامل تصادفی در 3 تیمار (مراحل مختلف برداشت) و 4 تکرار (جهت‌های اصلی جغرافیایی درخت) انجام شد. صفات کیفی اندازه‌گیری شده شامل: مواد جامد محلول کل، اسیدیته قابل تیتراسیون، ویتامین C ، سفتی‌بافت میوه، pH عصاره میوه، فنل، فلاونوئید کل، ظرفیت آنتی‌اکسیدانی کل، آنتوسیانین کل، آنزیم‌های آنتی‌اکسیدانی (پراکسیداز، کاتالاز، سوپراکسید دیسموتاز، پلی فنل اکسیداز) و پروتئین کل بودند. تمامی صفات در سطح 5% معنی‌دار بوده و در طول زمان‌های مختلف برداشت تغییر کردند. آنزیم‌های آنتی‌اکسیدانی در طول برداشت بجز پلی فنل اکسیداز افزایش و فنل‌ها و فلاونوئید‌ها کاهش پیدا کردند. با توجه به نتایج بدست آمده به نظر می‌رسد بهترین زمان برداشت برای این رقم زردآلو برداشت دوم باشد.

کلیدواژه‌ها


عنوان مقاله [English]

Qualitative study of apricot varieties of Prunus armeniaca cv Shahroudi during different harvesting stages

نویسندگان [English]

  • jasim taha 1
  • Jafar Hajilou 1
  • Qolamreza dehghan 2
1 Department of Horticulture Sciences, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
2 Department of Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
چکیده [English]

Today, much attention is paid to the quality of fruits, including those of nuclear origin, with regard to their after-harvest life. The purpose of this research was to evaluate some of the qualitative traits during the final stages of growth and determine the time of harvesting apricot of Shahroodi cultivar according to the time and market of consumption. Apricot fruits were harvested in 3 different time intervals (distance between each harvest and another three days). Experiment was conducted on randomized complete block design in three treatments (different stages of harvesting) and four replications (main tree species). The measured qualitative traits included total soluble solids (TSS), titratable acidity (TA), vitamin C, fruit firmness, pH of fruit extract, phenol, flavonoid, total antioxidant capacity, anthocyanin, antioxidant enzymes (peroxidase, catalase, superoxide dismutase) , Polyphenol oxidase) and total protein. All traits were significant at 5% level and changed during harvesting. Antioxidant enzymes increased during harvesting, except polyphenol oxidase, phenols and flavonoids decreased. According to the results, it seems that the best harvest time for this apricot is the second harvest.

کلیدواژه‌ها [English]

  • Quality
  • Apricot
  • Shahroodi
  • Harvesting time
  • Antioxidant enzymes
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