رحیم ناصری مهرشاد براری محمد جواد زارع کاظم خاوازی زهرا طهماسبی


به‌منظور بررسي اثر تلقیح با باكتري سودوموناس و قارچ ميكوريزا بر سيستم ريشه‌دهي و عملكرد دانه ارقام گندم در شرايط ديم، آزمايشي مزرعه‌اي به‌صورت فاکتوريل در قالب طرح بلوک‌هاي کامل تصادفي با سه تکرار در دو مزرعه در دانشکده کشاورزي، دانشگاه ايلام و ايستگاه تحقيقات كشاورزي سرابله در سال زراعي 93-1392 اجرا شد. تيمارهاي آزمايشي شامل عامل رقم گندم در دو سطح (كراس‌سبلان و ساجي) و تيمار منابع كودي در هشت سطح شامل: 1- شاهد (عدم مصرف هیچ منبع کودی)، 2- 50 كيلوگرم در هكتار كود شيميايي فسفر، 3- باكتري سودوموناس پوتيدا،
4- قارچ گلوموس موسه آ، 5- باكتري سودوموناس پوتيدا+ قارچ گلوموس موسه آ، 6- باكتري سودوموناس پوتيدا+ قارچ گلوموس موسه آ+25 كيلوگرم در هكتار كود شيميايي فسفر، 7- باكتري سودوموناس پوتيدا+25 كيلوگرم در هكتار كود شيميايي فسفر و 8- قارچ گلوموس موسه آ+25 كيلوگرم در هكتار كود شيميايي فسفر بودند. نتايج اين پژوهش نشان داد كه برهمكنش رقم×منابع كودي بر عملكرد، اجزاي عملكرد دانه و همچنين خصوصيات ريشه‌اي گندم ديم معني‌دار بود. به‌طوري‌كه بيشترين تعداد سنبله در مترمربع (افزایش 7/16 درصدی)، تعداد دانه در سنبله (افزایش 2/67 درصدی)، وزن هزار دانه (افزایش 3/19 درصدی)، عملكرد دانه (افزایش 72 درصدی)، عملكرد زيست‌توده (افزایش 57 درصدی)، حجم ريشه (افزایش 6/53 درصدی)، سطح ريشه (افزایش 3/69 درصدی)، تراكم طول ريشه (افزایش 5/76 درصدی) و چگالي سطح ريشه (افزایش 69 درصدی) در رقم ساجي× قارچ گلوموس موسه آ+25 كيلوگرم در هكتار كود شيميايي فسفر نسبت به شاهد (عدم مصرف هیچ منبع کودی) به‌دست آمد. نتايج اين تحقيق نشان داد كه در شرايط كشت گندم ديم در ايلام كه گياه با تنش‌هاي آخر فصلي (خشكي و دما) مواجه مي‌گردد، گندم دوروم ديم رقم ساجي و تلقیح با قارچ ميكوريزا به دليل بهبود سيستم ريشه‌دهي در شرایط دیم نتيجه مطلوب‌تري از خود نشان داده و موجب افزايش عملكرد دانه مي‌گردد.

جزئیات مقاله

کلمات کلیدی

حجم ريشه, سطح ريشه, سیستم ریشه, عملكرد دانه, منابع كودي

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ارجاع به مقاله
ناصریر., براریم., زارعم. ج., خاوازیک., & طهماسبیز. (2019). ارزیابی خصوصیات ريشه و عملكرد دانه ارقام گندم تحت تأثير باكتري‌هاي حل‌كننده فسفات و قارچ ميكوريزا در شرايط ديم. پژوهشهای زراعی ایران, 17(1), 83-98. https://doi.org/10.22067/gsc.v17i1.69147
نوع مقاله
علمی پژوهشی