بررسی اثر نسبت‌های مختلف پتاسیم به نیتروژن بر برخی ویژگی‌های مورفولوژیکی و فیزیولوژیکی گل ‏ژربرا رقم دانی (‏Gerbera jamesonii cv. Dune‏)‏

نوع مقاله : مقاله پژوهشی

نویسندگان

1 کارشناسی ارشد، دانشکده کشاورزی، دانشگاه ارومیه، ارومیه، ایران

2 استادیار، دانشکده کشاورزی، دانشگاه ارومیه، ارومیه، ایران

3 دانشجوی دکتری، دانشکده کشاورزی، دانشگاه ارومیه، ارومیه، ایران

چکیده

ژربرا یکی از معروف­ترین گل­های شاخه بریده و جزو ده گل شاخه بریده برتر صنعت گلکاری محسوب می­گردد. استفاده از برنامه غذایی مناسب یکی از فاکتورهای کلیدی در تولید محصولات گلخانه­ای می باشد. میزان و نسبت صحیح عناصر غذایی با یکدیگر در محلولهای غذایی تحت تاثیر برخی شرایط تولید و جذب مانند شدت نور، دمای محیط و نوع بستر کشت قرار می­گیرد که در این میان نسبت برخی از عناصر پرمصرف مانند پتاسیم و نیتروژن از اهمیت چشمگیری برخوردار است. به منظور بررسی اثر نسبت­های مختلف پتاسیم به نیتروژن بر عملکرد و برخی ویژگی­های کمی و کیفی گل ژربرا رقم Dune، پژوهشی در قالب طرح کاملا تصادفی با چهار تیمار نسبت کودی پتاسیم به نیتروژن (25/1 به 1، 5/1 به 1، 75/1 به 1 و 2 به 1) با سه تکرار و پنج مشاهده اجرا شد. نتایج نشان داد افزایش نسبت­ پتاسیم به نیتروژن تاثیر معنی‌داری در سطح یک درصد بر  تعداد برگ، وزن تر و خشک برگ، تعداد گل، ارتفاع ساقه گلدهنده، وزن تر ساقه گلدهنده، شاخص کلروفیل و قند­های محلول داشت. همچنین تاثیر معنی­داری در سطح پنج درصد بر عمر گلجایی و آنتوسیانین گلبرگ مشاهده گردید. به طور کلی با درنظرگرفتن هزینه های تولید ژربرا در گلخانه و یافته های حاصل از این پژوهش کاربرد نسبت 75/1 به 1 پتاسیم به نیتروژن در مقایسه با سایر نسبت‌های پتاسیم به نیتروژن مورد استفاده اثرات مثبت و مطلوب تری بر ویژگی­های کمی و کیفی گل ژربرا رقم Dune داشت و قابل‌توصیه می‌باشد.

کلیدواژه‌ها

عنوان مقاله [English]

Effect of different potassium to nitrogen ratios on yield and some quantitative and ‎qualitative indices of Gerbera jamesonii cv. Dune.‎

نویسندگان [English]

  • Shadi Hossinpour balou 1
  • Parviz Norouzi 2
  • Afsaneh Ansari 3
1 M. Sc. Student,, Faculty of Agriculture, Urmia University, Urmia, Iran
2 Assistant Professor, Faculty of Agriculture, Urmia University, Urmia, Iran
3 Ph. D. Candidate, Faculty of Agriculture, Urmia University, Urmia, Iran
چکیده [English]

Gerbera is one of the most famous cut flowers, considered as one of the top ten cuts in the floriculture industry. Nutrient recipe management is one of the key factors in greenhouse crops production The correct amount and ratio of nutrients with each other in nutrient solutions is influenced by some production and absorption conditions such as light intensity, ambient temperature and type of culture medium, among which the ratio of some high-consumption elements such as potassium and nitrogen is significant. In order to investigate the effect of different ratios of potassium to nitrogen on yield and some quantitative and qualitative characteristics of gerbera flower of Dune cultivar, a study in a completely randomized design with four treatments of potassium to nitrogen fertilizer ratio (1.25 to 1, 1.5 To 1, 1.75 to 1 and 2 to 1) were performed with three replications and five observations. Results showed that increasing the ratios of potassium to nitrogen improved growth and flowering and had a significant effect at the 1% level on the number of leaves, leaf fresh and dry weight, flower number, flower stem height, flower stem fresh weight, chlorophyll index and soluble sugars content. A significant effect at the 5% level also observed in flower vase life and petal anthocyanin. In general, with regarding the costs of greenhouse crops production and results of the present study, the application of 1.75:1 ratio of potassium to nitrogen in comparison with others ratios of potassium to nitrogen is recommendable and have more positive effects on the quantitative and qualitative characteristics of gerbera cv. Dune.

کلیدواژه‌ها [English]

  • Anthocyanin
  • chlorophyll
  • flowering
  • gerbera
  • nutrition‎

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  • تاریخ دریافت: 22 شهریور 1399
  • تاریخ بازنگری: 01 اردیبهشت 1400
  • تاریخ پذیرش: 18 خرداد 1400

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