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مطالعه پاسخ های فیزیولوژیک، رشدی و عملکرد کنجد به کاربرد نانوکود پتاسیم، محلولپاشی فولویکاسید و کیتوزان تحت تنش خشکی | ||
به زراعی کشاورزی | ||
مقاله 10، دوره 24، شماره 4، دی 1401، صفحه 1161-1178 اصل مقاله (593.62 K) | ||
نوع مقاله: مقاله پژوهشی | ||
شناسه دیجیتال (DOI): 10.22059/jci.2022.331235.2618 | ||
نویسندگان | ||
امیر میزانی1؛ جعفر مسعود سینکی* 2؛ شهرام رضوان3؛ محمد عابدینی اسفهلانی4؛ علی دماوندی5 | ||
1گروه زراعت، دانشگاه آزاد اسلامی، واحد دامغان، دامغان، ایران. رایانامه: amirmizani@yahoo.com | ||
2نویسنده مسئول، گروه کشاورزی مرکز تحقیقات تولید و فناوری داروهای گیاهی دانشگاه آزاد اسلامی، واحد دامغان، دامغان، ایران. رایانامه: sinaki@iau.ac.ir | ||
3گروه کشاورزی مرکز تحقیقات تولید و فناوری داروهای گیاهی دانشگاه آزاد اسلامی، واحد دامغان، دامغان، ایران. رایانامه: sh.rezvan@iau.ac.ir | ||
4بخش تحقیقات زراعی و باغی، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان سمنان (شاهرود)، سازمان تحقیقات، آموزش و ترویج کشاورزی، شاهرود، ایران. رایانامه: m.abedini@areeo.ac.ir | ||
5گروه کشاورزی مرکز تحقیقات تولید و فناوری داروهای گیاهی دانشگاه آزاد اسلامی، واحد دامغان، دامغان، ایران. رایانامه: al.damavandi1347@ iau.ac.ir | ||
چکیده | ||
پژوهش حاضر با هدف مطالعه پاسخهای فیزیولوژیک، رشدی و عملکرد کنجد به کاربرد نانوکود پتاسیم، کیتوزان و فولویکاسید تحت تنش خشکی، در مرکز تحقیقات کشاورزی و منابع طبیعی سمنان بهصورت اسپلیت پلات فاکتوریل در قالب طرح بلوکهای کامل تصادفی با سه تکرار در سال 1398 اجرا شد. تیمارهای آزمایش شامل، خشکی بهعنوان عامل اصلی (آبیاری کامل، قطع آبیاری در BBCH70 و 60 بهترتیب تنش متوسط و شدید) و نانوکود پتاسیم (صفر، 5/1 و 5/2 در هزار) و محلولپاشی (شاهد، کیتوزان، فولویکاسید و 50 درصد کیتوزان+ فولویکاسید) بهعنوان عامل فرعی بودند. استفاده از نانوکود پتاسیم تحت شرایط نرمال و تنش، افزایش معنیدار کلروفیل b و کل، شاخص سطح برگ، تعداد کپسول، وزن هزاردانه و درصد روغن را در پی داشت. بیشترین عملکرد دانه در کاربرد 5/1 و 5/2 در هزار نانوکود بههمراه فولویکاسید بهتنهایی یا در ترکیب با کیتوزان (بهترتیب 2516، 5/2277، 6/2506 و 2/2313 کیلوگرم در هکتار) بود. بالاترین محتوای روغن در کاربرد 5/1 و 5/2 در هزار نانوکود تحت شرایط آبیاری نرمال بود که افزایش 2/13 و 4/15 درصدی داشتند. محلولپاشی فولویکاسید بههمراه نانوکود پتاسیم (5/1 در هزار) تحت تنش شدید خشکی بیشترین فعالیت آنزیمهای آنتیاکسیدانت کاتالاز، پراکسیداز، آسکوربات پراکسیداز و سوپراکسید دیسموتاز را نشان داد. بهطورکلی، نتایج نشان داد که کاربرد 5/1 در هزار نانوپتاسیم و محلولپاشی تلفیقی کیتوزان و فولویکاسید تحت خشکی شدید، با بهبود صفات فیزیولوژیک منجر به تعدیل اثرات منفی ناشی از خشکی و افزایش شاخصهای رشدی، عملکردی و کیفی کنجد شد. | ||
کلیدواژهها | ||
رنگیزههای فتوسنتزی؛ روغن دانه؛ شاخص سطح برگ؛ فعالیت آنتیاکسیدانی؛ قطع آبیاری | ||
عنوان مقاله [English] | ||
Study of Physiological, Growth, and Yield Responses of Sesame to the Application of Potassium Nano-Fertilizer, Foliar Application of Fulvic Acid and Chitosan under Drought Stress | ||
نویسندگان [English] | ||
Amir Mizani1؛ jafar masoud sinaki2؛ Shahram Rezvan3؛ Mohammad Abedini-Esfahlani4؛ Ali Damavandi5 | ||
1Agronomy Department, Damghan branch, Islamic Azad University, Damghan, Iran. E-mail: amirmizani@yahoo.com | ||
2Corresponding Author, Department of Agriculture, production and technology of herbal medicines research centre, Damghan Branch, Islamic Azad University, Damghan, Iran. E-mail: sinaki@iau.ac.ir | ||
3Department of Agriculture, production and technology of herbal medicines research centre, Damghan Branch, Islamic Azad University, Damghan, Iran. E-mail: sh.rezvan@iau.ac.ir | ||
4Filed and Horticultural Crops Research Department, Agricultural and Natural Resources Research and Education Center of Semnan Province (Shahrood), Agricultural Research, Education and Extension Organization (AREEO), Shahrood, Iran. E-mail: m.abedini@areeo.ac.ir | ||
5Department of Agriculture, production and technology of herbal medicines research centre, Damghan Branch, Islamic Azad University, Damghan, Iran. E-mail: al.damavandi1347@ iau.ac.ir | ||
چکیده [English] | ||
This experiment works on the physiological, growth, and yield responses of sesame to the application of potassium nano-fertilizers, chitosan, and fulvic acid under drought stress in Semnan Agricultural and Natural Resources Research Center as a factorial split-plot based on randomized complete block design with three replications in 2019. The experimental treatments include drought as the main plot (normal irrigation, irrigation cut offin 70 and 60 BBCH as moderate, and severe stress, respectively) and potassium nano-fertilizer (0, 1.5, and 2.5 per thousand) and foliar application (control, chitosan, fulvic acid, and 50% of chitosan+ fulvic acid) as sub-plots.Application of potassium nano-fertilizer under normal and stress conditions significantly cuts chlorophyll b and total, leaf area index, number of capsules, 1000-seed weight, and oil percentage.The highest grain yield belongs to the application of 1.5 and 2.5 per thousand nano fertilizers, using fulvic acid alone or in combination with 50% chitosan (2516, 2277.5, 2506.6, and 2313.2 kg/ha, respectively). The highest oil content has been in 1.5 and 2.5 per thousand nano fertilizer application under normal irrigation, which has increased 13.2% and 15.4%, respectively. Foliar application of fulvic acid with nano potassium fertilizer (1.5 per thousand) under severe drought stress show the highest activity of antioxidant enzymes catalase, peroxidase, ascorbate peroxidase, and superoxide dismutase. In general, the results show that the application of 1.5 per thousand nano potassium fertilizer and combined foliar application of chitosan and fulvic acid under severe drought by improving physiological traits, manage to modify the adverse effects of drought, increasing growth, yield, and quality indices of sesame. | ||
کلیدواژهها [English] | ||
Antioxidant activity, irrigation cut off, leaf area index, photosynthetic pigments, seed oil | ||
مراجع | ||
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