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میثم بابایی سعید سعیدی پور

چکیده

در این تحقیقاثراتتراکمبذروتیمارهای مختلف علف‏کش بر میزان کنترل علف‏های هرز وعملکردگندممورد بررسیقرارگرفت. دوعاملتراکمبذر شامل سه سطح (180، 200 و 220 کیلوگرمدرهکتار)وتیمارهای مختلف علف‏کش شامل سه سطح (عدم کنترل و کاربرد علف‏کش‏های آپیروسوتوتال)دراینآزمایشمورد بررسی قرارگرفتند. آزمایشبصورت فاکتوریل درقالبطرحبلوکهایکاملتصادفیباچهارتکراراجراشد. نتایج نشاندادکهتراکمووزنخشکعلف‏هایهرزبهطورقابلتوجهیتحتتاثیرتراکم کاشتقرارگرفت. ایندومتغیرباافزایشتراکم کاشتدر سطح آماری (P <0.01) کاهش نشان دادند. مقداربذرمصرفی متغیر‏های مختلفشامل؛تعداد سنبلهدرمترمربع،تعداد دانهدر سنبله،وزنهزاردانه،عملکرددانه،عملکردبیولوژیکوشاخصبرداشترا بطور قابلملاحظه‏ایتحتتاثیرقرار داد. با افزایشتراکم،تعدادسنبلهدر واحد سطح وعملکرددانهافزایش، و وزنهزاردانهکاهشیافت. درمقایسهباتیمار شاهدعدم کنترل،کاربرد علف‏کش‏ها موجب کاهش زیست توده علف‏های هرز و افزایش عملکرد دانه و عملکرد بیولوژیک گندم شدند. در این خصوص تیمارآپیروس نسبت به علف‏کش توتال برتر بود. اثرمتقابلمقداربذرمصرفی وتیمارهای علف‏کشبرعملکرددانهمعنیداربود. بطوریکه،مقداربذر 200 کیلوگرمدرهکتاردر ترکیب باتیمارعلفکشآپیروس،بهترینعملکرددانه را نشانداد. این تحقیق نشان داد که با افزایش توانایی رقابتمحصولاز طریق انتخاب تراکم بهینه در ترکیب باعلف‏کشآپیروسمی‏توانبهعنوانیکراهکارمدیریتیموثرعلفهرزدر دستیابیبهعملکردمطلوب گندم رقم چمران دست یافت.

جزئیات مقاله

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ارجاع به مقاله
باباییم., & سعیدی پورس. (۱۳۹۵-۱۱-۲۵). اثر تراکم بذروکاربردبرخی علفکش‏های پس رویشیبر کنترلعلف‏‏های هرزوعملکردگندم (Triticum aestivum L.). مطالعات حفاظت گیاهان, 31(1), 117-123. https://doi.org/10.22067/jpp.v31i1.53092
نوع مقاله
علمی - پژوهشی