اثر محلول‌پاشی نانو کلات کلسیم بر خصوصیات فیزیولوژیکی، مورفولوژیکی و ماندگاری گل ژربرا‎ ‎

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشجوی کارشناسی ارشد، دانشکده کشاورزی، دانشگاه شهید چمران اهواز، اهواز، ایران

2 دانشیار، دانشکده کشاورزی، دانشگاه شهید چمران اهواز، اهواز، ایران

چکیده

به منظور بررسی اثر غلظت‌های مختلف نانو کلات کلسیم (صفر، 2 و 3 ‌گرم در لیتر) بر برخی از شاخص‌های رشدی، فیزیولوژیکی و ماندگاری سه رقم گل ژربرا(Amlet, Cabana, Intense) تحت سیستم هیدروپونیک آزمایشی به صورت فاکتوریل در قالب طرح کاملاً تصادفی با سه تکرار اجرا شد. نتایج نشان داد تیمار نانوکلات کلسیم عمر پس از برداشت گل شاخه‌بریده ژربرا را افزایش داد. بالاترین زمان ماندگاری گل (10 روز) متعلق به تیمار 3 گرم در لیتر نانو کلات کلسیم در رقم Intense و کمترین ماندگاری گل (5 روز) در گیاهان شاهد رقم Amlet مشاهده شد. با محلول‌پاشی نانو کلات کلسیم میزان کلسیم درون بافتی گیاهان تیمارشده نسبت به شاهد افزایش نشان داد. تأثیر مثبت کاربرد نانوکلات کلسیم بر افزایش میزان رنگدانه‌های اصلی فتوسنتز، محتوای نسبی آب برگ، میزان کربوهیدرات محلول و هدایت روزنه‌ای مشاهده گردید، اما بر پرولین تاثیر مثبتی دیده نشد. در فاکتورهای مختلف رشدی تفاوت معنی‌داری بین دو سطح 2 و 3 گرم در لیتر وجود نداشت، اما هر دو سطح با شاهد تفاوت معنی دار نشان دادند. به‌طورکلی، تیمار پیش از برداشت 2 گرم در لیتر نانو کلات کلسیم جهت بهبود شرایط رشدی و همچنین افزایش ماندگاری پس از برداشت گل شاخه‌بریده ژربرا توصیه می‌شود.

کلیدواژه‌ها


عنوان مقاله [English]

The effect of calcium nano-chelated sprays on physiological, morphological ‎parameters and vase life of gerbera

نویسندگان [English]

  • Soraya Moallaye Mazraei 1
  • Mehrangiz Chehrazi 2
  • Esmaeil khaleghi 2
1 M. Sc. Student , Faculty Agriculture, Shahid Chamran University of Ahvaz, Ahvaz, Iran
2 Associate Professor, Faculty Agriculture, Shahid Chamran University of Ahvaz, Ahvaz, Iran
چکیده [English]

In order to investigate the effect of various concentrations of nano-chelated calcium (0, 2 and 3 g/l) on growth, morphological parameters and vase life of three gerbera cultivars in hydroponic system, a factorial experiment based on compelitly randomized design with three replications was carried out. The results showed that nano-chelated calcium treatment increases the post-harvest vase life of gerbera cut flower. The highest vase life (10 days) belonged in 3 l/g of nano-chelated calcium in Intense cultivar and the lowest vase life (5 days) was observed in control Amlet cultivar. By nano - chelated calcium spraying the calcium content in the treated plants increased compared to the control plants. There was a positive relationship between the application of nano-chelated calcium and increased photosynthetic pigment, relative leaves water content, soluble carbohydrate content and stomata conduction, while there was no positive relationship between nano-chelated calcium and proline. However, in different growth factors, there was no significant difference between two levels of 2 g/l and 3g/l. Therefore 2 g/l nano-chelated calcium treatment before harvesting is recommended to improve the growth conditions as well as to improve the post-harvest survival of gerbera cut flower. 

کلیدواژه‌ها [English]

  • growth traits
  • Hydroponic system
  • post-harvest
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