بررسی تأثیر جیبرلیک اسید و هیومیک اسید بر برخی صفات رشدی گل نرگس رقم ژرمن (Narcissus jonquilla cv. German)

نوع مقاله: مقاله کامل

نویسندگان

1 دانشجوی سابق کارشناسی ارشد، دانشکدۀ علوم کشاورزی، دانشگاه گیلان، رشت

2 استاد، دانشکدۀ علوم کشاورزی، دانشگاه گیلان، رشت

چکیده

به‌منظور بررسی تأثیر جیبرلیک اسید و هیومیک اسید بر برخی صفات ریخت‌شناختی (مورفولوژیکی) و فیزیولوژیکی گل نرگس رقم ژرمن آزمایشی به‌صورت فاکتوریل در قالب طرح پایۀ کامل تصادفی اجرا شد که شامل 12 تیمار و هر تیمار دارای سه تکرار و برای هر تکرار پنج گلدان در نظر گرفته شد. عامل اول، جیبرلیک اسید که در چهار سطح با غلظت­های 0 (تیمار شاهد)، 150، 300  و 450 قسمت در میلیون (پی‌پی‌ام) بود که به­صورت غوطه‌وری سوخ‌­ها در غلظت­های موردنظر جیبرلیک اسید به مدت 48 ساعت اعمال شد. عامل دوم، هیومیک اسید که در سه سطح با غلظت­های 0 (تیمار شاهد)، 250 و 500 قسمت در میلیون بود که به‌صورت محلول‌پاشی در مرحلۀ رویشی انجام شد.نتایج به‌دست‌آمده از تجزیۀ واریانس داده‌ها نشان داد، تأثیر تیمار جیبرلیک اسید بر زمان ظهور ساقۀ گل دهنده، زمان گلدهی و  قطر گل اختلاف معنی‌داری با شاهد داشت. تیمارهای جیبرلیک اسید و هیومیک اسید به‌صورت جداگانه اختلاف معنی‌داری بر سبزینۀ (کلروفیل) کل، کاروتنوئید و قطر سوخ‌ گل نرگس داشتند. همچنین بیشترین سطح برگ نیز مربوط به اثر متقابل جیبرلیک اسید 300 قسمت در میلیون و هیومیک اسید500 قسمت در میلیون بود. در کل نتایج به‌دست‌آمده از این تحقیق نشان می‌دهد، با توجه به صفات مورد بررسی استفاده از جیبرلیک اسید 300 قسمت در میلیون و هیومیک اسید 500 قسمت در میلیون بهترین تیمار بود که توانست صفات مورد بررسی را بهبود بخشد.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Effects of gibberellic acid and humic acid on some growth characters of Daffodil (Narcissus jonquilla cv. German)

نویسندگان [English]

  • Yahya Mashahiri 1
  • Moazzam Hassanpour Asil 2
1 Former M. Sc. Student, Faculty of Agricultural Sciences, University of Guilan, Rasht, Iran
2 Professor, Faculty of Agricultural Sciences, University of Guilan, Rasht, Iran
چکیده [English]

In order to evaluate the effect of gibberellic acid and humic acid on some morphological and physiological traits of Narcissus cv. German, a factorial experiment was conducted in a completely randomized design with 2 factors, 12 treatments, 3 replications and 5 pots in each plot. The first factor was gibberellic acid at four levels with concentrations of zero (control), 150, 300 and 450 ppm which was carried out by immersing onions in the mentioned concentrations of gibberellic acid for 48 hours. The second factor was humic acid at three levels with concentrations of zero (control), 250 and 500 ppm which was carried out as a foliar application at the vegetative stage. Analysis of variance showed that the effects of gibberellic acid treatment on appearance of flowering stem, flowering time and flower diameter had a significant effect compared to control. Gibberellic acid and humic acid treatments had individually significant effects on total chlorophyll, carotenoid and diameter of narcissus bulbs. The most leaf area was also related to the interaction of gibberellic acid (300 ppm) and humic acid (500 ppm). In general, results of this study indicated that according to the studied traits, use of gibberellic acid (300 ppm) and humic acid (500 ppm) was the best treatments to improve the studied traits.

کلیدواژه‌ها [English]

  • carotenoid
  • Chlorophyll
  • Flower Diameter
  • flowering stem
  • Leaf area
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