تأثیر قارچ مایکوریزا و نانو اکسید روی بر عملکرد، تجمع ماده خشک، سرعت و طول دوره پر شدن دانه گندم در شرایط شوری خاک

نوع مقاله : مقاله پژوهشی

نویسندگان

1 اربیل دانشگاه محقق اردبیلی دانشکده کشاورزی گروه زراعت و اصلاح نباتات

2 دانشکده کشاورزی دانشگاه محقق اردبیلی

چکیده

به منظور مطالعه اثر مایکوریزا و نانو اکسید روی بر عملکرد، تجمع ماده خشک، سرعت و طول دوره پر شدن دانه گندم در شرایط شوری خاک، آزمایش فاکتوریلی با طرح پایه بلوک‌های کامل تصادفی در سه تکرار در دانشکده علوم کشاورزی دانشگاه محقق اردبیلی اجرا شد. فاکتورهای مورد بررسی شامل شوری خاک در سه سطح (عدم اعمال شوری، شوری40 و80 میلی‌مولار با نمک NaCl)، کاربرد مایکوریزا در دو سطح (عدم کاربرد و کاربرد میکوریزا) و محلول‌پاشی با نانو اکسید روی در سه سطح (عدم مصرف، مصرف 4/0 و 8/0 گرم در لیتر) بودند. مقایسه میانگین‌ها نشان داد بالاترین عملکرد (45/0 گرم در بوته)، سرعت پر شدن دانه (0022/0 گرم در روز)، طول دوره پر شدن (28 روز)، دوره موثر پر شدن دانه (55/28 روز) و حداکثر وزن دانه (0606/0 گرم) به ترکیب تیماری‌ کاربرد میکوریز، محلول‌پاشی 8/0 گرم در لیتر نانو اکسید روی و عدم اعمال شوری به‌دست آمد. اعمال شوری80 میلی‌مولار، عملکرد دانه را 21 درصد کاهش داد و محلول‌پاشی بالاترین سطح نانو اکسید روی و کاربرد مایکوریزا 66 درصد از این کاهش عملکرد را جبران کرد. از این رو می‌توان پیشنهاد نمود که به منظور افزایش عملکرد، طول دوره و دوره موثر پر شدن دانه و برخی دیگر از شاخص های رشدی مانند توده زنده کل در شرایط شوری، کاربرد میکوریز و محلول پاشی با نانواکسید روی به کار برده شود.

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