پلتینگ مینی‌تیوبر سیب زمینی روشی نوین جهت بهبود برخی صفات کلیدی سیب زمینی

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشجوی دکتری زراعت، دانشکده کشاورزی، دانشگاه محقق اردبیلی،اردبیل، ایران

2 دانشیار گروه زراعت و اصلاح نباتات، دانشکده کشاورزی، دانشگاه محقق اردبیلی، اردبیل، ایران

3 استادیار گروه زراعت و اصلاح نباتات، دانشکده کشاورزی، دانشگاه محقق اردبیلی، اردبیل، ایران

4 دانشیار گروه شیمی، دانشکده علوم، دانشگاه محقق اردبیلی، اردبیل، ایران

10.22124/jms.2023.6168

چکیده

پلت­کردن با اضافه کردن مواد بی اثر جاذب به منظور تغییر در اندازه و شکل بذر و بهبود عملکرد بذر و توانایی رشد گیاه صورت می­گیرد. پژوهش حاضر به­منظور بررسی پلتینگ مینیتیوبر سیب­زمینی (رقم آگریا) جهت بهبود برخی صفات کلیدی سیب­زمینی در قالب طرح بلوک­های کامل تصادفی با سه تکرار در مزرعه تحقیقاتی دانشگاه محقق اردبیلی در سال 98-1397 انجام شد. تیمارهای آزمایشی شامل نه ترکیب متفاوت از چسباننده صمغ عربی یا چسب سلولزی، پرکننده­های زئولیت یا کوکوپیت و کیتوزان به­همراه تیمار شاهد (بدون پلت) بودند و صفات مورد مطالعه از قبیل تعداد برگ، عملکرد تر، عملکرد ماده خشک غده سیب­زمینی، هدایت روزنه­ای برگ، محتوای کربوهیدرات غده، اسیدیته غده، وزن مخصوص ظاهری غده، محتوای کلروفیل برگ بود. نتایج حاکی از اثر معنی­دار پلتینگ مینی­تیوبر سیب­زمینی بر صفاتی تعداد برگ، عملکرد تر، عملکرد ماده خشک غده سیب زمینی، هدایت روزنه­ای­ برگ، وزن مخصوص ظاهری غده و محتوای کلروفیل b برگ بود. نتایج نشان داد پلت کردن مینی­تیوبرها با صمغ عربی، زئولیت و کیتوزان بیشترین تعداد برگ و وزن مخصوص ظاهری غده را نشان داد، که در مقایسه با شاهد به ترتیب افزایش 88/50 و 9/15 درصدی را نشان داد. طبق نتایج بدست آمده، بیشترین عملکرد تر غده و عملکرد ماده خشک غده در ترکیب تیماری صمغ عربی با زئولیت بدست آمد که به ترتیب افزایش 14/47 و 46/39 درصدی را نسبت به شاهد نشان داد. بیشترین میزان هدایت روزنه­ای برگ در ترکیب تیماری چسب سلولزی+ کوکوپیت مشاهده شد که افزایش 21/70 درصدی نسبت به تیمار شاهد را به همراه داشت. بیشترین محتوای کلروفیلb برگ در پلت کردن مینی­تیوبر با صمغ عربی، کوکوپیت و کیتوزان بدست آمد که در مقایسه با تیمار شاهد، افزایش77/42 درصدی داشت.به طور کلی از نظر صفات عملکردی کاربرد صمغ عربی با زئولیت به همراه کیتوزان منجر به بهبود اکثر صفات عملکردی و فیزیولوژیکی گردید.

کلیدواژه‌ها


عنوان مقاله [English]

Potato minituber pelleting new way to improve some key traits of potatoes

نویسندگان [English]

  • Sevda Ghasemi Germi 1
  • Morteza Barmaki 2
  • Salim Farzaneh 3
  • Mandana Amiri 4
1 PhD Student of Agronomy , Dept. of Crop Production and Plant Breeding, Faculty of Agriculture, Mohaghegh Ardebili University, Ardebil, Iran
2 Assoc. Prof., Dept. of Crop Production and Plant Breeding, Faculty of Agriculture, Mohaghegh Ardebili University, Ardebil, Iran
3 Assist. Prof., of Agronomy, Dept. of Crop Production and Plant Breeding, Faculty of Agriculture, Mohaghegh Ardebili University, Ardebil, Iran
4 Assoc. Prof., Dept. of chemistry, Faculty of Science, Mohaghegh Ardebili University, Ardebil, Iran
چکیده [English]

Pelleting is done by adding inert adsorbents to change seed size and shape and improve seed yield and plant ability. This present study was conducted to investigate potato minituber pelleting (Agria cultivar) to improve some key potato traits in a randomized complete block design with three replications in the research farm of Mohaghegh Ardabili University in 2018-2019. Experimental treatments included 9 different combinations of Arabic gum or cellulose adhesive, zeolite or cocopeat fillers and chitosan with control treatment (without pellets). The studied traits were leaf number of leaves, fresh yield, dry matter yield of potato tuber, leaf stomatal conductance, tuber carbohydrate content, tuber density and chlorophyll content in leaves. The results showed a significant effect of potato minituber pelleting on traits such as Number of leaves, Fresh and dry matter yield of potato tubers, leaf stomatal conductance, tuber acidity, density and chlorophyll b content. Pelleting of minitubers with Arabic gum + zeolite + chitosan had the highest number of leaves and density of potato tubers it showed an increase of 50.88 and 15.9 percent, respectively to the control treatment. According to the results, the highest fresh yield and dry matter yield of potato tuber were obtained in the treatment of Arabic gum with zeolite, which showed an increase of 47.14 and 39.46 percent, respectively, compared to the control. The highest amount of leaf stomatal conductance was observed in the cellulose adhesive + cocopeat treatment combination, which resulted in a 70.21% increase compared to the control treatment. The highest amount of chlorophyll b in cellulose adhesive + cocopeat + chitosan treatment combination showed an increase of 42.7% respectively, compared to the control treatment. In general, in terms of quantitative traits, application of Arabic gum with zeolite along with chitosan led to the improvement of most morphological, functional and physiological traits.

کلیدواژه‌ها [English]

  • Cellulose adhesive
  • Chitosan
  • cocopeat
  • Photosynthetic content
  • Zeolite
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