اثر کاربرد برگی سولفات پتاسیم بر برخی صفات کمی و کیفی میوه انگور (Vitis vinifera L.) رقم رشه

نوع مقاله: علمی - پژوهشی

نویسندگان

1 دانش‌آموخته کارشناسی ارشد گروه علوم باغبانی، دانشکده کشاورزی، دانشگاه کردستان، سنندج، ایران

2 استادیار گروه علوم باغبانی، دانشکده کشاورزی، دانشگاه کردستان، سنندج، ایران

3 استادیار گروه علوم خاک، دانشکده کشاورزی، دانشگاه کردستان، سنندج، ایران

چکیده

در این پژوهش اثر محلول‌پاشی برگی سولفات پتاسیم بر برخی صفات کمی و کیفی میوه انگور رقم رشه بررسی شد. پنج تیمار محلول­پاشی شامل محلول­پاشی با آب (شاهد)، یک‌بار محلول­پاشی به غلظت یک و نیم و سه گرم در لیتر و دو بار محلول­پاشی به غلظت یک و نیم و سه گرم در لیتر استفاده شدند. محلول‌پاشی اول در انتهای گلدهی و دومین محلول‌پاشی پانزده روز بعد از محلول‌پاشی اول انجام گرفت. نتایج نشان داد که میانگین وزن حبه، میانگین وزن خوشه، کربوهیدرات محلول کل و ویتامین ث به­طور معنی‌داری در اثر محلول‌پاشی نسبت به شاهد افزایش یافت. اما اختلاف بین تیمارهای مختلف سولفات پتاسیم معنی‌دار نبود. محلول‌پاشی سولفات پتاسیم به­طور معنی­داری سبب افزایش میانگین حجم حبه و آنتوسیانین گوشت و پوست میوه گردید و تیمار دوبار محلول‌پاشی سولفات پتاسیم سه گرم در لیتر بالاترین مقدار را دارا بود. تیمار محلول‌پاشی سبب افزایش مواد جامد محلول کل و pH میوه گردید. کمترین مقدار اسیدیته قابل تیتراسیون در تیمار دوبار محلول‌پاشی سولفات پتاسیم سه گرم در لیتر مشاهده گردید و سایر تیمارها با هم اختلاف معنی‌داری نداشتند. به­طور­کلی نتایج این آزمایش نشان داد که محلول‌پاشی سولفات پتاسیم باعث بهبود صفات کمی و کیفی میوه انگور رقم رشه شد. 

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Effect of Potassium Sulphate Foliar Application on Some Quantitative and Qualitative Traits of Grape (Vitis vinifera L.) cv. Rashe

نویسندگان [English]

  • Elnaz Zaree 1
  • Taimoor Javadi 2
  • Naser Ghaderi 2
  • Masoud Davari 3
1 M.Sc. Graduate, Department of Horticultural Sciences, Faculty of Agriculture, University of Kurdistan, Sanandaj, Iran
2 Assistant Professor, Department of Horticultural Sciences, Faculty of Agriculture, University of Kurdistan, Sanandaj, Iran
3 Assistant Professor, Department of Soil Sciences, Faculty of Agriculture, University of Kurdistan, Sanandaj, Iran
چکیده [English]

In this study, the effects of foliar application of potassium sulfate were evaluated on yield and quality of grape (Vitis vinifera cv. Rashe). Five foliar spray treatments including control, once foliar spray at two concentrations of 1.5 g.l-1 and 3 g.l-1 and two foliar sprays at two concentrations of 1.5 g.l-1 and 3 g.l-1 were used. The first and second foliar spray were done at the end of flowering period and fifteen days after the first spraying, respectively. The results showed that the average berry and cluster weight, total soluble carbohydrates and vitamin C significantly increased compared to control in potassium applied treatments. The difference was not significant between different treatments of potassium sulfate. Foliar application of potassium sulfate significantly increased the average berry volume, berry pulp and berry skin anthocyanin. Twice foliar applications of potassium sulfate treatment at concentration of 3 g.l-1 had the highest amounts of anthocyanin contents. Potassium-sprayed treatments increased total soluble solids and pH of the fruit juice. Titratable acidity was at least in 3 g.l-1 treatment and other treatments were not significantly different. In general, the results of this experiment showed that foliar application of potassium sulfate improves the quantity and quality of the grape berry.

کلیدواژه‌ها [English]

  • Anthocyanin
  • Berry growth
  • Potash fertilizer
  • Titratable acidity
  • Total soluble solids

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