اثر محلول‌پاشی نانوسیلیکون بر صفات مورفولوژیکی، عملکرد و تعدیل تنش خشکی در گیاه کینوا (Chenopodium quinoa L.)

نوع مقاله : مقاله پژوهشی

نویسندگان

1 عضو هیات علمی و مدیر گروه آموزشی منابع طبیعی، آب و خاک مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی فارس

2 استادیار مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی فارس، سازمان تحقیقات، آموزش و ترویج کشاورزی، شیراز، ایران

چکیده

اهداف: پژوهش حاضر با هدف بررسی اثر نانوسیلیکون برعملکرد و کاهش اثر ناشی از تنش آبی در گیاه کینوا اجراء شد.

مواد و روش‌ها: آزمایش به‌صورت کرت‌های خرد شده بر پایه بلوک‌های کامل تصادفی در سه تکرار در مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی فارس اجراء گردید. تیمارها شامل رژیم‌های آبیاری در چهار دور 7، 14، 21 و 28 روز و محلول‌پاشی نانوسیلیکون در سطوح صفر، 30 و 60 میلی‌گرم در لیتر درنظر گرفته شد.

یافته‌ها: اعمال تنش رطوبتی متوسط (دور آبیاری 21 روز) و شدید (دور آبیاری 28 روز) در مقایسه با عدم تنش (دور آبیاری 7 روز) سبب کاهش 93/5 و 65/24 درصد در طول پانیکول، 77/8 و 81/27 درصد در عرض پانیکول، 14/5 و 44/29 درصد در تعداد پانیکول، 05/12 و 87/23 درصد در وزن کل اندام هوایی، 73/24 و 95/54 درصد در عملکرد دانه، 11/26 و 94/55 درصد در وزن هزار دانه و 53/14 و 16/41 درصد در شاخص برداشت گیاه گردید. تنش‌های رطوبتی فوق سبب 125 و 84/78 درصد افزایش در بهره‌وری مصرف آب شد. همچنین محلول‌پاشی نانوسیلیکون تأثیر معنی-داری بر شاخص‌های رشد گیاه کینوا دارد بطوری که حداکثر ارتفاع گیاه، طول, عرض و تعداد پانیکول، وزن کل اندام هوایی، عملکرد دانه و بهره‌وری مصرف آب در محلول‌پاشی نانوسیلیکون با غلظت 30 میلی‌گرم در لیتر مشاهده گردید.

نتیجه‌گیری: محلول‌پاشی نانوسیلیکون با غلظت 30 میلی‌گرم در لیتر سبب پایین آمدن اثرات منفی تنش‌های رطوبتی در شرایط خشکی (دور آبیاری 21 و 28 روز) در گیاه کینوا می‌گردد.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

The Effect of Nanosilicon Foliar Application on Morphological, Yield and Adjusment of Drought Stress in Quinoa Plant (Chenopodium quinoa L.)

نویسندگان [English]

  • Vahid Mohasseli 1
  • Hojat Dialamy 2
  • Mahmood Izadi 2
1 Head of Water, Soil and Natural Resources educational group/ Fars Agricultural and Natural Resources Research and Education Center
2 Assistant Professor, Fars Agricultural and Natural Resources Research and Education Center, AREEO, Shiraz, Iran
چکیده [English]

Background and Objective: The present study was conducted with aim of investigating the effect of nanosilicon on yield the performance and reducing the effect caused by water stress in Quinoa plant.

Materials and Methods: The experiment was conducted as split plot based on randomized complete blocks design with three replications in Fars Agricultural and Natural Resources Research and Education Center. The treatments included irrigation regimes in four rounds of 7, 14, 21 and 28 days and nanosilicon spraying at zero, 30 and 60 mg L-1 levels.

Results: Application of moderate moisture stress (irrigation cycle of 21 days) and severe (28 days) compared to no stress (7 days) caused a decrease of 5.93 and 24.65% in panicle length, 8.77 and 27.81% in panicle width, 5.14 and 29.44% in panicle number, 23.87 and 12.05% in total aerial organ weight, 24.73 and 54.95% in seed yield, 26.11 and 55.94% in the weight of one thousand seeds and 14.53 and 41.16% in the plant harvest index. The above moisture stresses caused a 125 and 78.84% increase in water consumption efficiency. Also, nanosilicon foliar has a significant effect on Quinoa plant growth, so that the maximum morphological growth, grain yield and water consumption efficiency observed in nanosilicon application with concentration 30 mg L-1 was.

Conclusion: Nanosilicon spraying with 30 mg L-1 concentration reduces the negative effects of moisture stress in drought stress conditions (21 and 28 days) on the Quinoa plant.

کلیدواژه‌ها [English]

  • Drought
  • Stress
  • Plant Growth
  • Grain Yield
  • Chemical
  • Improver
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