مطالعه اثر محلول پاشی عناصر روی، آهن و منگنز بر عملکرد و اجزای عملکرد گندم نان رقم پیشگام
محورهای موضوعی : یافته های نوین کشاورزیرضا صدرآبادی حقیقی 1 , سیده شیما سخاوتی 2
1 - دانشکده کشاورزی، واحد مشهد، دانشگاه آزاد اسلامی، مشهد، ایران
2 - دانشجوی کارشناسی ارشد اگرواکولوژی، دانشکده کشاورزی، دانشگاه آزاد اسلامی، مشهد، ایران
کلید واژه: شاخص برداشت, ارتفاع بوته, تعداد دانه در سنبله, طول سنبله,
چکیده مقاله :
به منظور بررسی اثر محلول‌پاشی عناصر روی، آهن و منگنز بر عملکرد و اجزای عملکرد گندم نان رقم پیشگام آزمایشی در قالب طرح بلوک‌های کامل تصادفی با 8 تیمار و 3 تکرار در سال زراعی 1395-1394 در تربت جام به اجرا درآمد. تیمارهای آزمایش شامل محلول پاشی با آهن، روی، منگنز، آهن+روی، آهن+منگنز، روی+منگنز، آهن+روی+منگنز و شاهد بود. محلول‌پاشی با استفاده از کلات عناصر کم‌مصرف به میزان یک در هزار در دو مرحله ساقه‌دهی و گلدهی صورت پذیرفت. نتایج آزمایش نشان داد محلول‌پاشی بر ارتفاع بوته، طول سنبله، تعداد دانه در سنبله و شاخص برداشت معنی‌دار بود. محلول‌پاشی باعث افزایش ارتفاع بوته‌ها گردید. بیشترین ارتفاع گندم در تیمارهای آهن+منگنز، آهن+منگنز+روی، منگنز+روی حاصل شد. بیشترین طول سنبله در تیمارهای آهن+روی، آهن+منگنز به دست آمده که البته با تیمار شاهد اختلاف معنی داری نداشتند. تعداد دانه در سنبله در تیمارهای روی و روی+ آهن+ منگنز نسبت به سایر تیمارهای شاهد بیشتر بود. البته هیچ یک از تیمارهای محلول‌پاشی با عناصر نتوانست عملکرد دانه را نسبت به تیمار شاهد افزایش دهد.
In order to evaluate the effects of foliar application of elements such as Zinc, Iron and manganese on yield and yield components of bread wheat cv. Pishgam an experiment was conducted based on a RCBD with three replications at Torbat-e-jam in 2015-2016. Factors were foliar application including Iron, Zinc, Manganese, Iron+Zinc, Iron+Manganese, Zinc+Manganese, Iron+Zinc+Manganese and control treatment. Foliar application was done using micronutrients chelates at the amount of one per thousand at stem elongation and flowering stages. The results showed that foliar application had significant effect on plant height, spike length, the number of grains per spike, and harvest index. Foliar application increased plant height significantly. The highest plant height obtained from application of Iron+Manganese, Iron+Zinc+Manganese and Zinc+Manganese. The maximum length of the spike was seen in foliar application of Iron, Zinc, Iron+Manganese which had not significant difference with control treatment. The number of grains per spike in Zinc and Zinc+Iron+Manganese treatments were higher than control. Generally, it seems that none of foliar application treatments could increase the grain yield compared to control treatment.
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