نوع مقاله : مقاله پژوهشی
نویسندگان
1 دانشجوی دکتری گروه زراعت و اصلاح نباتات، دانشکده کشاورزی و منابع طبیعی، دانشگاه محقق اردبیلی.
2 استاد گروه زراعت و اصلاح نباتات، دانشکده کشاورزی و منابع طبیعی، دانشگاه محقق اردبیلی.
چکیده
بهمنظور مطالعه عملکرد دانه، انتقال مجدد و شاخص سطح برگ تریتیکاله در واکنش به کاربرد کودهای بیولوژیک و نانواکسید روی در شرایط شوری خاک، آزمایشی در سال 1393 در گلخانه تحقیقاتی دانشکده کشاورزی و منابع طبیعی دانشگاه محقق اردبیلی به‌صورت فاکتوریل در قالب طرح پایه بلوکهای کامل تصادفی با سه تکرار اجرا گردید. فاکتورهای موردبررسی شامل شوری خاک در چهار سطح (عدم اعمال شوری، شوری 20، 40 و 60 میلی مولار)، کاربرد کودهای زیستی در چهار سطح (عدم کاربرد، کاربرد میکوریز، کاربرد توأم باکتریهای سودوموناس و ازتوباکتر، کاربرد توأم میکوریز و باکتریهای محرک رشد) و محلول پاشی با نانواکسید روی در سه سطح (عدم مصرف، مصرف 0.4 و 0.8 گرم در لیتر) بودند. نتایج نشان داد با افزایش شوری عملکرد و شاخص سطح برگ کاهش ولی انتقال مجدد از کل اندام هوایی و ساقه افزایش یافت. مقایسه میانگین ها نشان داد بالاترین عملکرد دانه و حداکثر شاخص سطح برگ در حالت کاربرد توأم میکوریز و باکتریهای محرک رشد، محلولپاشی 0.8 گرم در لیتر نانواکسید روی و عدم اعمال شوری به دست آمد. بیشترین انتقال مجدد از ساقه و کل اندام هوایی در حالت شوری 60 میلی مولار، عدم کاربرد کودهای بیولوژیک و عدم محلول پاشی به دست آمد. اعمال شوری 20، 40 و 60 میلی مولار، عملکرد دانه را به ترتیب 8.9، 22.1 و 32.3 درصد کاهش داد و استفاده توأم کودهای بیولوژیک و نانواکسید روی به ترتیب 40.1، 49.7 و 40 درصد از این کاهش عملکرد را جبران کردند.
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