اثر زمان مصرف نیتروکسین و محلول‌پاشی عناصر ریز مغذی بر عملکرد و اجزای عملکرد ارقام جدید گندم (Triticum aestivum L.) در شرایط آب و هوایی خرم‌آباد

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشگاه آزاد اسلامی واحد خرم آباد

2 مرکز تحقیقات کشاورزی و منابع طبیعی استان لرستان

چکیده

به‌ منظور بررسی اثر زمان مصرف نیتروکسین و محلول‌پاشی عناصر ریز مغذی بر عملکرد و اجزای عملکرد ارقام جدید گندم(Triticum aestivum & T. durum) در شرایط آب و هوایی خرم‌آباد، آزمایشی به ‌صورت فاکتوریل در قالب طرح بلوک‌های کامل تصادفی با سه تکرار در مزرعه تحقیقاتی ایستگاه تحقیقات کشاورزی خرم‌آباد طی سال زراعی 92-1391 انجام شد. عامل اول در شش سطح: N0: عدم تلقیح بذر با کود زیستی نیتروکسین و بدون محلول‌پاشی عناصر ریز مغذی (شاهد)، N1: تلقیح بذر با کود زیستی نیتروکسین، N2: محلول‌پاشی عناصر ریز مغذی در مرحله ساقه رفتن، N3: محلول‌پاشی عناصر ریز مغذی در مرحله ظهور سنبله، N4: تلقیح بذر با کود زیستی نیتروکسین و محلول‌پاشی عناصر ریز مغذی در مرحله ساقه رفتن، N5: تلقیح بذر با کود زیستی نیتروکسین و محلول‌پاشی عناصر ریز مغذی در مرحله ظهور سنبله و عامل بعدی در دو سطح، شامل: V1: رقم پارسی و V2: رقم دنا بود. در این بررسی عملکرد دانه، عملکرد بیولوژیک، شاخص برداشت، وزن هزار دانه، تعداد سنبله در واحد سطح، تعداد دانه در سنبله و تعداد سنبلچه در سنبله گندم مورد مطالعه قرار گرفت. نتایج تجزیه واریانس داده‌ها نشان داد که اثر محلول‌پاشی عناصر ریز مغذی و کود زیستی نیتروکسین بر عملکرد دانه، عملکرد بیولوژیک، شاخص برداشت، وزن هزار دانه، تعداد سنبله در واحد سطح، تعداد دانه در سنبله و تعداد سنبلچه در سنبله گندم تأثیر معنی‌داری داشت. بیشترین عملکرد دانه مربوط به کاربرد توأم تیمار تلقیح بذر با کود زیستی نیتروکسین و محلول‌پاشی عناصر ریز مغذی در مرحله ظهور سنبله بود. با توجه به افزایش قابل توجه عملکرد دانه، کاربرد توأم تیمار تلقیح بذر با کود زیستی نیتروکسین و محلول‌پاشی عناصر ریز مغذی در مرحله ظهور سنبله در شرایط خرم‌آباد توصیه می‌شود.

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