بررسی تأثیر هگزاکونازول، پنکونازول و سیلیکات کلسیم بر صفات کمی و کیفی دو رقم سویا در شرایط کم‌آبیاری

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشجوی سابق کارشناسی‌ارشد گروه زراعت، دانشگاه پیام‌نور، صندوق‌پستی 3697-19395، تهران، ایران

2 دانشیار گروه زراعت، دانشگاه پیام‌نور، صندوق‌پستی 3697-19395، تهران، ایران

3 استادیار گروه زراعت، دانشگاه پیام‌نور، صندوق‌پستی 3697-19395، تهران، ایران

چکیده

به منظور بررسی تأثیر تیمارهای مختلف آبیاری بر ویژگی‌های زراعی سویا با و بدون کاربرد تریازول­ها و سیلیکات کلسیم آزمایشی به‌صورت کرت‌های خردشده (اسپلیت پلات) فاکتوریل در قالب طرح بلوک­ کامل تصادفی با سه تکرار در مزرعۀ تحقیقاتی دانشکدۀ کشاورزی دانشگاه تربیت مدرس اجرا شد. نتایج نشان داد اثر متقابل سه­گانۀ عامل‌های آزمایشی به­طور معنی­دار همۀ صفات مورد بررسی بجز ارتفاع بوته را تحت تأثیر قرار داد. در شرایط بدون تنش رقم L17 و در شرایط تنش متوسط محلول­پاشی هگزاکونازول روی رقم ویلیامز با اختلاف بیش از 4 برابر به ترتیب بیشترین و کمترین مقادیر عملکرد پروتئین را نشان دادند. محلول­پاشی سیلیکات کلسیم روی رقم ویلیامز در شرایط بدون تنش و تنش متوسط با اختلاف 23/0 به ترتیب بیشترین و کمترین مقادیر شاخص برداشت را نشان دادند. عملکرد زیست‌توده (بیوماس) و دانه در شرایط تنش متوسط به ترتیب 9519 و 3328 کیلوگرم در هکتار کاهش یافتند. بنا بر یافته­های به‌دست‌آمده از این تحقیق تنش کم­آبی می تواند باعث کاهش مقادیر صفات کمی و اجزای عملکرد سویا شود و در شرایط تنش محلول‌پاشی مواد بهبوددهندۀ رشد می‌تواند باعث تعدیل آسیب‌وزیان ناشی از تنش و افزایش مقاومت این گیاه زراعی شود. با توجه به واکنش متفاوت رقم‌های مورد بررسی از نظر عملکرد روغن به محلول پاشی در شرایط متفاوت باید بیان کرد، در شرایط بدون تنش محلول پاشی پنکونازول و سیلیکات کلسیم روی رقم ویلیامز، و در شرایط تنش متوسط و شدید به ترتیب محلول پاشی پنکونازول و هگزاکونازول روی رقم L17  کارایی بالاتری در افزایش عملکرد روغن داشتند.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

The effect of hexaconazole, penconazole and calcium silicate on the quantitative and qualitative traits of two varieties of soybean under water deficit conditions

نویسندگان [English]

  • Elham Madanipour 1
  • Kamal Sadat Asilan 2
  • Sirus Mansourifar 3
1 Former M.Sc. Student, Department of Agronomy, Payame Noor University, P.O. Box 19395-3697, Tehran, Iran
2 Associate Professor, Department of Agronomy, Payame Noor University, P.O. Box 19395-3697, Tehran, Iran
3 Assistant Professor, Department of Agronomy, Payame Noor University, P.O. Box 19395-3697, Tehran, Iran
چکیده [English]

To study the different irrigation treatments on agronomic characteristics of soybean with and without use of triazoles and calcium silicate, an experiment was conducted as split-plot factorial in a randomized complete block design with three replications at the Research Field of Faculty of Agriculture, Tarbiat Modares University. The results showed that three-way interaction among experimental factors significantly influenced all traits, except plant height. Under non-stressed conditions for L17 and under moderate stress for Williams, hexaconazole spraying caused maximum and minimum protein yield with more than fourflods differences between them. Calcium silicate spraying on Williams under non- and moderate- stressed conditions, with 0.23 difference, showed most and least values of harvest index, respectively. Biological and seed yield under stress conditions decreased 9519 and 3328 kg/ha, respectively. According to the findings of these research, water deficit stress can cause reductions in values for quantitative traits and yield components of soybean, and under stress conditions, spraying admendatory materials can mitigate the harm of stress and increase the crop tolerance. Considering different response of soybean cultivars tested in terms of oil yield to spraying under varios conditions, it can be noted that penconazole and calcium silicate spraying on Williams under non-stressed conditions, and penconazole and hexaconazole spraying on L17 under moderate- and severe stressed conditions, exhibited higher efficiency in increasing oil yield.

کلیدواژه‌ها [English]

  • Calcium Silicate
  • soybean
  • triazoles
  • water deficit stress
  • yield
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